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User manual 09/2009 - Schneider Electric

1. Alarms on a Failure Event Alarms on a Maintenance Event Label Code SDx Output Priority Long time prot Ir 16384 Yes High Short time prot Isd 16385 Yes High Instant prot li 16386 Yes High Ground fault Ig 16387 Yes High Integ instant prot 16390 No High Trip unit fail Stop 16391 Yes High Instant vigi prot 16392 No High Reflex tripping 16393 No High Phase unbalance 16640 Yes High Jam motor prot 16641 Yes High Under load mtr prot 16642 Yes High Long start mtr prot 16643 Yes High Trip indicator SD 1905 Yes Medium Label Code SDx Output Priority BSOM failure Stop 1912 Yes High BSOM failure Err 1914 Yes Medium Label Code SDx Output Priority OF operation overrun 1916 Yes Medium Close command overrun 1919 Yes Medium Wear on contacts 256 Yes Medium LV434104 09 2009 113 Alarms Operation of SDx and SDTAM Module Outputs Assigned to Alarms Presentation 2 alarms can be assigned to the 2 SDx module outputs The 2 outputs can be configured using the RSU software Outputs tab and are activated or deactivated by the occurrence or completion of e Analarm associated with a measurement see Alarms Associated with Measurements page 106 e Analarm on atrip failure and maintenance event see Alarms on a Trip Failure and Maintenance Event page 109 The 2 outputs on the SDTAM module Micrologic M cannot be configured
2. Rating 50 A Type of Setting Value or Setting Range xin Preset by a dial 0 30 0 40 0 50 0 60 0 70 0 80 0 90 1 OFF Setting range 0 30 0 3 0 4 0 3 0 5 0 3 0 6 0 3 0 7 0 3 0 8 0 3 0 9 0 3 1 0 3 1 OFF on the keypad Rating gt 50A Type of Setting Value or Setting Range x In Preset by a dial 0 20 0 30 0 40 0 50 0 60 0 70 0 80 1 OFF Setting range 0 20 0 2 0 3 0 2 0 4 0 2 0 5 0 2 0 6 0 2 0 7 0 2 0 8 0 2 1 0 2 1 OFF on the keypad The accuracy range is 10 Time Delay Setting Values The tg time delay setting value is expressed in seconds The non tripping and breaking times are expressed in milliseconds The default tg time delay setting is 0 s Table of tg setting values expressed in second s and the associated non tripping and breaking times expressed in milliseconds ms Parameter Value tg s 0 0 1 0 2 0 3 0 4 Non tripping time ms 20 80 140 230 350 Maximum breaking time ms 80 140 200 320 500 Ground Fault Protection Test The ground fault protection test can be performed on the keypad of the Micrologic trip unit see Ground Fault Protection Test Micrologic 6 page 22 This test can be used to check the trip unit s electronic tripping function LV434104 09 2009 65 The Protection Function P
3. 2 By default the duration of the fixed metering window is set at 15 minutes At the end of each fixed metering window e The demand value over the metering window is calculated and updated e Calculation of a new demand value is initialized on a new metering window Sliding Metering Window The duration of the sliding metering window can be specified from 5 to 60 minutes in steps of 1 minute H 60s T E 1 m 5 60 mn By default the duration of the sliding metering window is set at 15 minutes At the end of each sliding metering window and then once a minute e The demand value over the metering window is calculated and updated e Calculation of a new demand value is initialized on a new metering window e By eliminating the contribution of the first minute of the previous metering window e By adding the contribution of the current minute 78 LV434104 09 2009 The Metering Function Synchronized Metering Window Synchronization is performed via the communication network When the synchronization pulse is received e The calculation of the demand value over the synchronized metering window is updated e Calculation of a new demand value is initialized NOTE The interval between 2 synchronization pulses must be less than 60 minutes Quadratic Demand Value Thermal Image The quadratic demand value model represents the conductor heat rise thermal image The heat rise created by the cu
4. Topic Page Measurement Accuracy 96 Micrologic A Real Time Measurements 97 Micrologic E Real Time Measurements 98 Micrologic E Demand Value Measurements 103 Micrologic E Energy Metering 104 LV434104 09 2009 95 The Metering Function Measurement Accuracy Presentation Micrologic trip units provide measurements e Via the communication network e On the front display module FDM121 in the Services Metering menu Some measurements can be accessed on the Micrologic trip unit display see List of Metering Screens page 28 The tables in this chapter indicate the measurements available and specify the following information for each measurement e Unit e Measurement range e Accuracy e Accuracy range Measurement Accuracy The trip units comply with the requirements of standard IEC 61557 12 in accordance with e Class 1 for current metering e Class 2 for energy metering The accuracy of each measurement is defined e Fora Micrologic trip unit powered in normal conditions e Ata temperature of 23 C 2 C For a measurement taken at a different temperature in the temperature range 25 C to 70 C the derating coefficient for temperature accuracy is 0 05 per degree C The accuracy range is the part of the measurement range for which the defined accuracy is obtained the definition of this range can be linked to the circuit breaker load characteristics 96 LV434104 09 2009 The Meterin
5. 1 E COS 0 0 O4 qq MAX cos Q Critical zone 0 for highly capacitive devices shaded green Critical zone 0 for highly inductive devices shaded red Minimum position of the load cos lagging red arrow Variation range of the value of the load cos q lagging red Maximum position of the load cos leading green arrow Variation range of the value of the load cos leading green oci hWD IN cos 1 Arrows indicating the cos q variation range for the load in operation PF MAX or cos MAX is obtained for the smallest positive value of the PF or cos indicator PF MIN or cos MIN is obtained for the smallest positive value of the PF or cos q indicator NOTE The minimum and maximum values of the PF and cos q indicators are not physically significant they are markers which determine the ideal operating zone for the load Monitoring the cos o and power factor PF indicators According to the IEEE convention critical situations in receiver mode on a capacitive or inductive load are detected and discriminated 2 values The table below indicates the direction in which the indicators vary and their value in receiver mode IEEE Convention Operating quadrant Q1 Q4 Direction in which the cos or PFs vary over the operating range Nc d m MIN MAX MIN MAX Value of the cos or PFs over the operating range 0 0 3 0 8 1 1 0 8 0 4 0 T
6. Crossing the threshold of 9596 of Ir is a temperature alarm long time protection is not activated The figure below illustrates the information supplied by the LED la 95 Ir 1 Current in the load 2 Thermal image calculated by the trip unit 132 LV434104 09 2009 Operating Assistance Indication on the Micrologic Display Presentation Stacking Screens Indication screens inform the user about the status of the installation Maintenance interventions should be executed according to the priority level e Configured alarms high medium low or no priority e Or pre defined trip and failure events high or medium priority When a number of events arrive simultaneously they are stacked according to their criticality level 0 no criticality to 4 high criticality Criticality Screen 1 Main screen Outx alarm screen Err internal failure screen Stop internal fault screen o nm o Trip screen 1 The screens and their acknowledgment procedure are described below Example An alarm on a voltage measurement Outx then an internal failure Err have occurred 1 e The screen displayed is the internal failure Err screen e After acknowledging the internal failure Err screen the alarm Outx screen is displayed e After acknowledging the internal failure Outx screen the main screen is displayed 1 The stacking example corresponds to 3 criticali
7. Motor Thermal Image Micrologic 6 E M The accuracy range is indicated for Micrologic trip unit operation in the current range 0 2 In 1 2 In Measurement Unit Measurement Accuracy Accuracy Range Range e Motor thermal image measurements Ir 0 100 1 0 100 e Maximum value of the motor thermal image Minimum value of the motor thermal image 102 LV434104 09 2009 The Metering Function Micrologic E Demand Value Measurements Current Demand and Peak Values Power Demand and Peak Values Measurement Unit Measurement Accuracy Accuracy Range Range e Phase l1 12 13 and neutral IN current demand values A 0 20 In 1 5 0 2 1 2 In e Phase l1 12 I3 and neutral IN peak current values IN with 4 pole or 3 pole trip unit with ENCT option The accuracy range is indicated for Micrologic trip unit operation e In the current range 0 1 1 2 In e Inthe voltage range 70 850 V e Inthe cos o range 1 0 5 and 0 5 1 Measurement Unit Measurement Accuracy Accuracy Range Range e Demand value of the total active power Ptot kW 0 3000 kW 2 3 3000 kW Total active power peak value Ptot e Demand value of the total reactive power Qtot kvar 0 3000 kvar 2 3 3000 kvar e Total reactive power peak value Qtot e Demand value of the total apparent power Stot kVA 0 3000 kVA 2 3 3000 kVA e Total app
8. The tg time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software The tg time delay setting incorporates activation deactivation of the lat option 46 LV434104 09 2009 The Protection Function Ig Pick Up Setting Value The lg pick up setting value is expressed in multiples of In The default Ig pick up setting value is the same as the minimum value read on the dial e 0 40 In for trip units rated 40 A e 0 20 In for trip units rated 40A Ground fault protection can be deactivated by setting the Ig dial to the OFF position Ground fault protection can be reactivated even with the Ig dial in the OFF position e By fine tuning on the keypad e Viathe communication option The 2 tables below specify the setting values preset by a dial and setting ranges set on the keypad e Fortrip units rated 40A e Fortrip units rated higher than 40 A On the keypad the step is 0 05 In Rating 40 A Type of Setting Value or Setting Range xin Preset by a dial 0 40 0 40 0 50 0 60 0 70 0 80 0 90 1 OFF Setting range onthe 0 40 0 40 0 4 0 5 0 4 0 6 0 4 0 7 0 4 0 8 0 4 0 9 0 4 1 0 4 1 OFF keypad Rating 40A Type of Setting Value or Setting Range xln Preset by a dial 0 20 0 30 0 40 0 50 0 60 0 70 0 80 1 OFF Setting range onthe 0 20 0 2 0 3 0 2 0 4 0 2 0 5 0 2
9. e Reactive power measurement 1 Power factor PF 1 cos 1 Total harmonic distortion THD Distortion power measurement 1 For more information see Power Metering Micrologic E page 80 and Energy Metering Micrologic E page 85 The energy quality indicators take account of e Reactive energy management cos metering to optimize the size of the equipment and or avoid peak tariffs e Management of harmonics to avoid degradation and malfunctions during operation These measurements and indicators can be used to implement corrective actions in order to conserve an optimum level of energy quality The current THD is defined by standard IEC 61000 2 2 It is expressed as a of the rms value of harmonic currents greater than 1 in relation to the rms value of the fundamental current order 1 The Micrologic E trip unit calculates the total harmonic current distortion THD up to the 15th harmonic 15 eR 5 nrms 2 THD L Cmm ms 4 irms irms The current THD can be higher than 100 The total harmonic distortion THD l can be used to assess the deformation of the current wave by means of a single number The limit values below should be taken into consideration THD I Value Comments THD I lt 10 Low harmonic currents No need to worry about malfunctions 10 lt THD I lt 50 Significant harmonic currents Risk of heat rise oversizing of supplies 50 lt THD l High harmonic curre
10. MWh Reset Ok Readout and resetting of the apparent energy meter Es kVAh MVAh Readout and resetting of the reactive energy meter Eq kvarh Mvarh Ne Readout of the phase rotation Xe Boul P Xx Readout and resetting of the A The down arrow indicates hd Bou af e Maximum li MAX for the 3 phase currents the conductor phase Max Reset Ok e Maximum ground fault current Micrologic 6 lg neutral Of ground on which the maximum was e Maximum IN MAX for the neutral current 4 pole or A measured 3 pole with ENCT option Readout and resetting of the V The down arrows indicate e Maximum Vij MAX for the 3 phase to phase voltages the phases between e Maximum ViN MAX for the 3 phase to neutral which the maximum V voltages 4 pole or 3 pole with ENVT option MAX L L or L N was measured Readout and resetting of the maximum P MAX of the kW The down arrows indicate active power the 3 phase conductors Readout and resetting of the maximum S MAX of the kVA apparent power Readout and resetting of the maximum Q MAX of the kvar reactive power 28 LV434104 09 2009 Using Micrologic Trip Units List of the Protection Parameter Screens Micrologic 5 LSI Protection Parameter Readout Screens Mode Description of Screens Unit Up Down Arrows Ir Long time protection pick up value for the phases A The up arrow indicates o a the Ir parameter The down arrows indicate the 3 pha
11. e It incorporates the possibility of an l t inverse time curve function e It can be configured as the Isd pick up and the tsd trip time delay Tripping curve tsd gt No Parameter Description 1 Ir Long time protection pick up 3 Isd Short time protection pick up 4 tsd Short time protection time delay 5 12t Inverse time curve function ON or OFF Setting the Short Time Protection Micrologic 5 The Isd pick up can be set as follows e On the Micrologic trip unit preset by the Isd dial and fine tuned on the keypad e Via the communication option using the RSU software preset by the Isd dial on the Micrologic trip unit and fine tuned via the RSU software The tsd time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software The tsd time delay setting incorporates activation deactivation of the lat option Setting the Short Time Protection Micrologic 6 The Isd pick up and tsd time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software The tsd time delay setting incorporates activation deactivation of the I4 option LV434104 09 2009 43 The Protection Function Isd Pick Up Setting Value The Isd pick up setting value is expressed in multiples of Ir The default Isd pick up setting value is 1 5 Ir minimum dial val
12. e Output 1 is assigned to motor thermal fault indication e Output 2 is used to open the contactor For more details on the SDx and SDTAM modules see the Compact NSX circuit breakers User manual SDx Module Output Operating Modes The operating mode for the SDx module outputs can be configured as Non latching Latching Time delayed non latching Closed forced Open forced Operation in Non Latching Mode The output S position follows the associated alarm A transitions Alarm Green when activated white when deactivated Output High position activated low position deactivated Alarm activation transition Alarm deactivation transition N20 Operation in Latching Mode The position of the output S follows the active transition of the associated alarm A and remains latched irrespective of the alarm state il 2 id 2 a A Lo A Alarm Green when activated white when deactivated Output High position activated low position deactivated Alarm activation transitions Alarm deactivation transitions y 0 Operation in Time delayed Non Latching Mode The output S follows the activation transition for the associated alarm A The output returns to the deactivated position after a time delay irrespective of the alarm state 1 2 a A S A Alarm Green when activated white when deactivated S Output High position activated low position deactivated 1 Alarm acti
13. e Voltages e Powers Only the maximum values are displayed but both the maximum and minimum values are reset LV434104 09 2009 77 The Metering Function Calculating Demand values Micrologic E Presentation Definition The Micrologic E trip unit calculates e The Demand values phase and neutral currents e The demand values of the total active reactive and apparent powers For each demand value the maximum demand value peak is stored in the memory The demand values are updated according to the type of window The demand value of a quantity can be called the e Average mean value e Demand e Demand value over an interval Example Demand in current or demand value of the current Demand in power or demand value of the power The demand value should not be confused with the mean which is an instantaneous value Example Mean current or average current lavg I1 12 I3 8 Calculation Principle Metering Window The demand value of a quantity over a defined interval metering window is calculated according to 2 different models e Arithmetic demand value for the powers e Quadratic demand value thermal image for the currents The specified time interval T is chosen according to 3 types of metering window e Fixed window e Sliding window e Synchronized window Fixed Metering Window The duration of the fixed metering window can be specified from 5 to 60 minutes in steps of 1 minute
14. 0 In Trip unit setting range Minimum setting maximum setting trip unit In rating O 1 Ir Long time protection pick up Lm 2 CI Long time protection trip class L 3 Isd Short time protection pick up S m 4 tsd Short time protection time delay n 5 li Instantaneous protection pick up I jo 6 Ig Ground fault protection pick up G m 7 tg Ground fault protection time delay a lunbal Phase unbalance protection pick up a tunbal Phase unbalance protection time delay a Function W Adjustable 1 Non adjustable Each function is reviewed in detail on the following pages 56 LV434104 09 2009 The Protection Function Additional Protection The Micrologic 6 E M trip unit incorporates additional protection functions for motor applications Protection Default Activation Default Setting SDTAM Activation Jam motor prot OFF ljam OFF tjam 5 s Yes Under load OFF lund OFF tund 10 s Yes Long start mtr prot OFF llong OFF tlong 10 s No The additional protections are activated for startup or steady state or in both cases Setting the Protection Reflex Protection The protection parameters can be set as follows e On the Micrologic trip unit using the preset dials depending on the protection parameter and the Micrologic type and on the keypad e Via the communication option using the RSU software under the Basic prot tab For more information on the protection parameter setting procedure using the RSU software
15. Main menu Pressing the OK key validates selection of the Quick view menu gt MET X Metering Control Alarms Services ESC OK A 2 Screen 1 in the Quick View menu displays the IMU name Motor feeder The IMU name defined with RSU can consist of 45 characters maximum but only the first 14 characters are visible on the front display module FDM121 LV434104 09 2009 147 Operating Assistance 6 3 RCU Operating Software Description of the RCU Software Presentation The RCU Remote Control Utility software is a help utility for starting an electrical installation including devices connected to the communication network The RCU software installed on a standard PC can be used to e Validate communication e Monitor the electrical equipment remotely List of Recognized Devices The RCU software takes account of e Micrologic trip units on Compact NSX and Masterpact NT NW circuit breakers e PM200 300 500 700 800 and PM9C power meters e Advantys OTB interface modules Example of Network Architecture The figure below shows an example of communication network architecture consisting of the communicating devices below e A Masterpact NW20 circuit breaker equipped with a Micrologic 6 0 H trip unit e A PM850 power meter e A Compact NSX160 circuit breaker equipped with a Micrologic 6 2 E M trip unit and a display module FDM121 e A Compact NSX400 circuit breaker with commu
16. Short Time Protection Presentation Short time protection on Micrologic 6 E M trip units is adapted to protecting all types of motor application against short circuit currents Operating Principle Short time protection is definite time It can be configured as the Isd pick up Tripping curve t A 1 3 4 tsd 4 l l l l l Isd No Parameter Description 1 Ir Long time protection pick up Isd Short time protection pick up tsd Short time protection fixed time delay Seiting the Short Time Protection The Isd pick up and tsd time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software Isd Pick Up Setting Value The Isd pick up setting value is expressed in multiples of Ir The default Isd pick up setting value is 5 Ir minimum value The pick up setting range on the keypad is 5 13 Ir The step is 0 5 Ir The accuracy is 10 tsd Time Delay Value The time delay cannot be adjusted e The non tripping time is 20 ms e The maximum breaking time is 60 ms 62 LV434104 09 2009 The Protection Function Instantaneous Protection Presentation Operating Principle li Pick up Value Instantaneous protection on Micrologic 6 E M trip units is adapted to protecting all types of motor application against very high intensity short circuit currents Instantaneous protection is fixed
17. THD V Value Comments THD V lt 5 Insignificant deformation of the voltage wave No need to worry about malfunctions 5 lt THD V lt 8 Significant deformation of the voltage wave Risk of heat rise and malfunctions 8 THD V Significant deformation of the voltage wave The risks of malfunction are almost certain if the installation has not been specifically calculated and sized with this restriction in mind Deformation of the voltage wave is seen by all receivers powered by the supply NOTE The THD V indication can be used to assess the risks of disturbance of sensitive receivers supplied with power When harmonic pollution is present calculation of the total apparent power involves 3 terms Stot Ptot Qtot Dtot The distortion power D qualifies the energy loss due to the presence of harmonic pollution 90 LV434104 09 2009 The Metering Function Power factor PF and cos o measurement Micrologic E Power Factor PF Cos o The Micrologic E trip unit calculates the power factor PF from the total active power Ptot and the total apparent power Stot Ptot PF Stot This indicator qualifies e The oversizing to be applied to an installation s power supply when harmonic currents are present e The presence of harmonic currents by comparison with the value of the cos see below The Micrologic E trip unit calculates the cos from the total active power Pfundtot and the total appa
18. Time Delay Pick Up or Pick Up Drop Out Drop Out Under Current IN 57 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current lavg 60 0 2 10 In 1 3000 s 0 2 In 60s 15s Over I1 Demand 61 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over I2 Demand 62 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over I3 Demand 63 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over IN Demand 64 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under MIN 1 2 3 65 0 2 10 In 1 3000 s 0 2 In 60s 15s Under I1 Demand 66 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under I2 Demand 67 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under I3 Demand 68 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under IN Demand 69 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over lunbal MAX 70 5 60 lavg 1 3000 s 25 40s 10s Over Voltage V12 71 100 1100 V 1 3000 s 500 V 40s 10s Over Voltage V23 72 100 1100 V 1 3000 s 500 V 40s 10s Over Voltage V31 73 100 1100 V 1 3000 s 500 V 40s 10s Over Volt Vavg L N 75 100 1100 V 1 3000 s 300 V 5s 2s Under Voltage V12 76 100 1100 V 1 3000 s 320 V 40s 10s Under Voltage V23 77 100 1100 V 1 3000 s 320 V 40s 10s Under Voltage V31 78 100 1100 V 1 3000 s 320 V 40s 10s Over V MAX L L 79 100 1100 V 1 3000 s 300 V 5s 2s Under Volt Vavg L N 80 100 1100 V 1 3000 s 180V 5s 2s Under V MIN L L 81 100 1100 V 1 3000 s 180V 5s 2s Over Vunb MAX L L 82 295 3096 Vavg 1 3000 s 10 40s 10s Over Vunbal V12 86 2 30 Vavg 1 3000 s 10 40s 10s Over Vunbal V23 87 2
19. Tripped by short time protection Up arrow pointing to Isd breaking value displayed Ir Cl e Isd lunbaltunbal ljam tjam lg tg N 1A 2 B 3C Tripped by instantaneous protection or reflex protection Inst displayed Ir Cl 8 Isd lunbaltunbal ljam tjam lg tg N 1A 2 B 3 C Tripped by ground fault protection Up arrow pointing to Ig triP displayed Ir Cl 8 Isd lunbal tunbal Ijam tjam lg tg N A 2 B 3 0 Tripped by unbalance protection Up arrow pointing to lunbal triP displayed 1 Ir Cl 8 Isd lunbal tunbal ljam tjam lg tg N 1A 2 B 3 C Tripped by jam motor protection Up arrow pointing to ljam triP displayed 1 Ir Cl 8 Isd lunbaltunbal Ijam tjam lg tg N WA 2 B 3 0 Tripped by underload protection Undl displayed 1 Ir Cl e Isd lunbaltunbal ljam tjam lg tg N 1 A 2 B 3 C Tripped by long start protection Strt displayed 1 These trip causes can be managed automatically by SDTAM output 2 OUT2 action on the contactor see SDTAM Module Option page 57 LV434104 09 2009 135 Operating Assistance Acknowledging the Trip Screens The trip screens are acknowledged by pressing the key twice validation and confirmation 4 CAUTION RISK OF CLOSING ON ELECTRICAL FAULT Do not close the circuit breaker again without inspecting and if necessary repairing the downstream electrical equipment Failure to follow these instructions can
20. head is accessible LV434104 09 2009 13 Using Micrologic Trip Units Sealing the Protection The transparent cover on Micrologic trip units can be sealed to prevent modification of the protection settings and access to the test port On Micrologic 5 and 6 trip units it is possible to use the keypad with the cover sealed to read the protection settings and measurements 14 LV434104 09 2009 Using Micrologic Trip Units Description of the Micrologic 5 and 6 Trip Units Presentation of the Front Face Indication LEDs Test Port The front face of Micrologic 5 and 6 trip units contains 1 Indication LEDs 2 A test port 3 A set of 2 dials and 1 microswitch 4 An LCD display 5 A keypad Front face of a Micrologic 5 2 A trip unit for a 3 pole circuit breaker 1 2 3 4 5 gt 15A p gt 90 105 Pais lt Isd tsd li xin 9 S x Isd x Ir Indication LEDs on the front of the trip unit indicate its operational state The number of LEDs and their meaning depend on the type of Micrologic trip unit Type of Micrologic Trip Unit Description Distribution e Ready LED green Blinks slowly when the electronic trip unit is ready to provide 5 gt 15A 2290 2405 protection 9 Q9 E Q 9 Overload pre alarm LED orange Shows a steady light when the load exceeds e z 90 of the Ir setting Overload alarm LED red Shows a steady light when the load exceeds
21. the pick up value is determined by the trip unit rating Protection is instantaneous Tripping curve 160 320A ta gt li No Parameter Description In Trip unit setting range The maximum setting corresponds to the trip unit In rating 5 li Instantaneous protection pick up The li pick up value is directly determined by the trip unit In rating and is expressed in xIn li pick up value according to the Micrologic trip unit In rating accuracy is 10 In Rating A 25 50 80 150 220 320 500 Instantaneous Pick up A 425 750 1200 2250 3300 4800 7500 The non tripping time is 0 ms The maximum breaking time is 30 ms LV434104 09 2009 63 The Protection Function Ground Fault Protection Presentation Ground fault protection on Micrologic 6 E M trip units is adapted to protecting all types of motor application against ground fault currents in the TN S system see Compact NSX circuit breakers User manual Operating Principle Ground fault protection is definite time It can be configured as Ig pick up and as tg trip time delay Tripping curve 0 A 6 7 tg L 1 Ig No Parameter Description In Trip unit setting range Minimum setting maximum setting trip unit In rating Ig Ground fault protection pick up tg Ground fault protection time delay Setting the Ground Fault Protectio
22. 117 The RSU Parameter Setting Software Parameter Setting Using the RSU Software Presentation The RSU Remote Setting Utility software is a Micrologic utility designed to help the operator e To check and or configure e Protection parameters Metering parameters Alarm parameters Assignment of the SDx module outputs BSCM module parameters Modbus interface module parameters To modify passwords To save these configurations To edit configurations To display trip curves To download the firmware Using the RSU Software Offline Mode Online Mode The RSU software can be used e In stand alone mode directly on the Micrologic trip unit by means of the test port For this type of use you need a standard PC and the maintenance module e Via the communication network For more details see the RSU Software Online Help Offline mode can be used to configure the protection metering and alarm functions of the Micrologic trip unit in the RSU software For more details on offline mode see the RSU Software Online Help Online mode can be used to e Perform the same configuration functions as offline mode e Download information from or to the Micrologic trip unit For more details on online mode see the RSU Software Online Help 2 buttons located on the right of the screen activate the data transfer FA Rsu Compact NSX Rev 2 007F C MicrologicWtility RSU_AWata New rsa File Remote functions Setup Live update Help M
23. 160 A 1 5 15 In 0 5 In 250 A and 400 A 1 5 12 In 0 5 In 630A 1 5 11 In 0 5 In The accuracy range is 10 The non tripping time is 10 ms The maximum breaking time is 50 ms LV434104 09 2009 45 The Protection Function Ground Fault Protection Presentation Ground fault protection on Micrologic 6 trip units is adapted to protecting all types of electrical distribution application against ground fault currents in the TN S system For more details on ground fault currents see the Compact NSX circuit breakers User manual Operating Principle Ground fault protection is definite time e It incorporates the possibility of an l t inverse time curve function e It can be configured as lg pick up and as tg trip time delay Tripping curve foor250 0 t4 tg NENNEN LLL c Hs Ig No Parameter Description 0 In Trip unit setting range Minimum setting maximum setting trip unit In rating 7 lg Ground fault protection pick up 8 tg Ground fault protection time delay 9 Pt Ground fault protection I t curve in ON or OFF position Setting the Ground Fault Protection The lg pick up can be set as follows e On the Micrologic trip unit preset by the Ig dial and fine tuned on the keypad e Viathe communication option using the RSU software preset by the Ig dial on the Micrologic trip unit and fine tuned via the RSU software
24. 3 4 6 10 20 30 4050 70 100 150200 300 2 3 4 6 10 20 30 4050 70 100 150200 300 E kA rms gt f kA rms A 170 LV434104 09 2009 LV434104 Micrologic 5 6 electronic trip units User manual Compact NSX CE LV434104 France 3 6 06480 022158 AAV66165 2009 Schneider Electric All rights reserved Schneider Electric Industries SAS 35 rue Joseph Monier CS 30323 F 92506 Rueil Malmaison Cedex RCS Nanterre 954 503 439 Capital social 896 313 776 www schneider electric com LV434104 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publication KY e hs Printed on recycled paper Production Assystem France Publication Schneider Electric Printed 09 2009
25. 30 Vavg 1 3000 s 10 40s 10s Over Vunbal V31 88 2 30 Vavg 1 3000 s 10 40s 10s Over Vunb MAX L L 89 2 30 Vavg 1 3000 s 10 40s 10s Phase sequence 90 0 1 N A 0 N A N A Under Frequency 92 45 65 Hz 1 3000 s 45 Hz 5s 2s Over Frequency 93 45 65 Hz 1 3000 s 65 Hz 5s 2s Over KW Power dmd 99 1 1000 kW 1 3000 s 100 kw 40s 10s Leading cos IEEE 1 121 0 0 99 1 3000 s 0 80 40s 10s lead lag cos e IEC 1 123 0 0 99 1 3000 s 0 80 40s 10s Lagging cos q IEEE 1 124 0 99 0 1 3000 s 0 80 40s 10s Over T image motor 125 0 2 10 5 In 1 3000 s In 60s 15s Micrologic 6 E M trip unit Under T image motor 126 0 2 10 5 In 1 3000 s In 60s 15s Micrologic 6 E M trip unit Over 1 Peak Demand 141 0 2 10 5 In 1 3000 s In 60s 15s Over I2 Peak Demand 142 0 2 10 5 In 1 3000 s In 60s 15s Over I3 Peak Demand 143 0 2 10 5 In 1 3000 s In 60s 15s Over IN Peak Demand 144 0 2 10 5 In 1 3000 s In 60s 15s Lead 145 0 0 1 3000 s 0 40s 10s Lag 146 1 1 1 3000 s 1 40s 10s Quadrant 1 147 1 1 1 3000 s 1 40s 10s Quadrant 2 148 2 2 1 3000 s 2 40s 10s Quadrant 3 149 3 3 1 3000 s 3 40s 10s Quadrant 4 150 4 4 1 3000 s 4 40s 10s 1 The type of alarms associated with monitoring the cos and PF indicators must always be consistent with the choice of sign convention IEEE or IEC for the PF indicator 112 LV434104 09 2009 Alarms Alarms on a Trip Event
26. Function Operating Principle Neutral protection has the same characteristics as those for phase protection e Its pick up can be configured in proportion with the long time Ir and short time Isd protection pick ups e It has the same trip time delay values as the long time Ir and short time Isd protections e Instantaneous protection is identical Tripping curve 100 250 gt tA 10 gt No Parameter Description 0 Trip unit setting range The maximum setting corresponds to the trip unit In rating 1 Long time protection pick up 10 Neutral protection pick up Setting the Neutral Protection 4 pole trip unit The IN pick up can be set as follows e On the Micrologic trip unit using the keypad e Via the communication option using the RSU software 3 pole trip unit Neutral declaration and the IN pick up can be set as follows e On the Micrologic trip unit using the keypad e Via the communication option using the RSU software LV434104 09 2009 49 The Protection Function Neuiral Protection Setting Value Micrologic 5 and 6 trip units incorporate the OSN OverSized Neutral function which enables protection of the neutral conductor to be managed when third order harmonic currents and multiples thereof are present see Harmonic Currents page 87 The table below shows according to the value of the IN Ir parameter the setting valu
27. Long time protection pick up value for the phases A The up arrow indicates o a the Ir parameter The down arrows indicate the 3 phases Ir IN Long time protection pick up value for the neutral A The up arrow indicates 4 pole or 3 pole trip unit with ENCT option and active the Ir parameter neutral protection The down arrow indicates the neutral tr Long time protection time delay value at 6 Ir S The up arrow indicates the tr parameter Isd Short time protection pick up value for the phases A The up arrow indicates the Isd parameter The down arrows indicate the 3 phases Isd IN short time protection pick up value for the neutral A The up arrow indicates 4 pole or 3 pole trip unit with ENCT option and active the Isd parameter neutral protection The down arrow indicates the neutral tsd Short time protection time delay value S The up arrow indicates The time delay is associated with the I t inverse time the tsd parameter curve protection function e ON t function active e OFF t function not active li Instantaneous protection pick up value for the phases A The up arrow indicates and the neutral 4 pole or 3 pole trip unit with ENCT the li parameter option and active neutral protection The down arrows indicate the 3 phases Ig Ground fault protection pick up value A The up arrow indicates the lg parameter The down arrows indicate the 3 phases tg Ground fault protection time delay value S The up arrow indicates The
28. Minimum average current value lavg MIN 0 20 In 1 0 2 1 2 In Micrologic 6 e Ground fault current measurement e Maximum minimum value of the ground fault current 96 lg 0 600 1 IN with 4 pole or 3 pole trip unit with ENCT option Current Unbalance Metering Voltage Metering The accuracy range is indicated for Micrologic trip unit operation in the current range 0 2 In 1 2 In Measurement Unit Measurement Accuracy Accuracy Range Range Current phase unbalance measurements l1unbal I2unbal 96 lavg 100 100 2 100 100 I3unbal e Maximum values of current phase unbalances l1unbal MAX I2 unbal MAX I3 unbal MAX e Maximum value MAXMAX of the MAX of the phase unbalances NOTE e The unbalance values are signed relative values e The unbalance maximum values MAX are not signed absolute values Measurement Unit Measurement Accuracy Accuracy Range Range e Phase to phase V12 V23 V31 and phase to neutral VIN V 0 850 V 0 5 70 850V V2N V3N voltage measurements 1 e Maximum values of phase to phase voltages V12 MAX L L V23 MAX L L V31 MAX L L and phase to neutral voltages V1N MAX L N V2N MAX L N V3N MAX L N 1 e Maximum value of the MAX phase to phase voltages V12 V23 V31 e Minimum values of phase to phase voltages V12 MIN L L V23 MIN L L V31MIN L L and phase to neutral voltages V1N MIN L N V2N MI
29. Module Outputs Assigned to Alarms 0 000 114 LV434104 09 2009 3 Chapter 5 Chapter 6 6 1 6 2 6 3 6 4 Appendices Appendix A The RSU Parameter Setting Software slslss 117 Parameter Setting Using the RSU Software 0 0 0c cect eere 118 Protection parameter setting lleeeelee RII 121 Metering Setup nece tee e ee es ea Ure X DW eb ee 123 Alarm Set p s ood tede Beato ee rat eel pee e oe m TEE RR EEUU RA 125 Setting the SDx Module Output Parameters lllllelielee esses 127 Operating Assistance 0 0c cece eee eee 129 Micrologic Trip Unit Indicators 1 0 ete 130 local ED Indicatiori eet bate Deo be es aed 131 Indication on the Micrologic Display sseleee tees 133 Examples of Using Alarms lsellleeeeee ttn nee 138 Alarm Monitoring of the Cos o and Power Factor eene 140 FDM121 Switchboard Display Unit llis II 142 The ULP System ases d aE E E We ee dup oe FCR ECTS INE EO RI DR 143 Mait Menu sufre ta ee eee A ed ME pep EUR TM quaes 145 Quick View Menu s 4 du Dea teet atv NB ak ditelt wee Lo at 146 RCU Operating Software liliis rr 148 Description of the RCU Software nn 148 The Communication Network 00000 eee tenes 150 Compact NSX Circuit Breaker Communication llle 151 History and Time Stamped Information liiis ee 152 Maintenance Indicators lllliell
30. Time Delay s 1 5 Ir 120 240 400 720 6 Ir 6 5 13 5 26 38 7 2 Ir 5 10 20 30 The accuracy range is 20 0 Motor Thermal Image The model representing heat rise and cooling in a motor load is identical to that used for the conductors It is constructed according to the algorithm for calculating the thermal demand but this model takes account of the iron and copper losses The figure below represents the limit curves for the iron and copper components calculated by the Micrologic 6 E M trip unit for class 20 t s 10000 1000 100 10 Ir 10 xlr A Limit temperature curve for copper B Limit temperature curve for iron C Tripping curve low envelope 60 LV434104 09 2009 The Protection Function Thermal Memory Cooling Fan Micrologic 6 E M trip units incorporate a thermal memory which ensures that the conductors are cooled even after tripping cooling lasts for 20 minutes before or after tripping By default the motor s thermal image is calculated taking account of the fact that the motor is self cooled fan mounted on the shaft end If the motor is force cooled forced ventilation the calculation of the thermal image takes account of the shortest time constants for the cooling calculation The cooling ventilation parameters Auto or moto position are set on the Micrologic trip unit keypad or using the RSU software LV434104 09 2009 61 The Protection Function
31. and actually used NOTE Declaration of the ENCT option alone does not result in correct calculation of the powers It is absolutely essential to connect the wire from the ENVT option to the neutral conductor LV434104 09 2009 81 The Metering Function Power Sign and Operating Quadrant By definition the active powers are e Signed when they are consumed by the user i e when the device is acting as a receiver e Signed when they are supplied by the user i e when the device is acting as a generator By definition the reactive powers are e Signed with the same sign as the active energies and powers when the current lags behind the voltage i e when the device is inductive lagging e Signed with the opposite sign to the active energies and powers when the current is ahead of the voltage i e when the device is capacitive leading These definitions therefore determine 4 operating quadrants Q1 Q2 Q3 and Q4 Q Q2 A Q1 P lt 0 Q gt 0 P 0 Q gt 0 Lead L E Lag Ahead T Delay Lag E Lead P Delay T Ahead P lt 0 Q lt 0 P gt 0 Q lt 0 Q3 Q4 NOTE The power values are e Signed on the communication for example when reading the front display module FDM121 e Not signed when reading the Micrologic LCD display Power Supply From the Top or Underside of the Device Compact NSX circuit breakers can be powered from either the top usual scenario considered to be the default position or from
32. crossed Setting the Protection The l ong pick up and the t ong time delay settings can only be accessed by the communication option using the RSU software see Protection parameter setting page 121 llong Pick Up Setting Value The l ong pick up setting value is expressed in multiples of Ir The pick up setting range is 1 8 Ir The step is 0 1 Ir The default setting is OFF protection not active The accuracy range is 10 tlong Time Delay Setting Value The t ong time delay setting value is expressed in seconds The t ongtime delay setting range is 1 200 s The step is 1 s The default setting value for the time delay is 10 s 72 LV434104 09 2009 The Metering Function Aim This chapter describes the metering function of Micrologic 5 6 and 6 E M trip units What s in this Chapter This chapter contains the following sections Section Topic Page 3 1 Measurement Techniques 74 3 2 Measurement Accuracy Tables 95 LV434104 09 2009 73 The Metering Function 3 1 Measurement Techniques Aim This section describes the measurement characteristics and techniques used by Micrologic trip units What s in this Section This section contains the following topics Topic Page Real Time Measurements 75 Calculating Demand values Micrologic E 78 Power Metering Micrologic E 80 Power Calculation Algorithm 83 Energy Metering Microl
33. gt 0 Capacitif ne E Inductif T p Inductif E Capacitit P P 0 Q lt 0 FP 0 P gt 0 Q lt 0 FP gt 0 Q3 Q4 IEEE Convention Operation in all 4 quadrants Q1 Q2 Q3 Q4 Values of cos q in receiver mode Q1 Q4 Q2 A Q Q1 gs Q1 cos o lt 0 P 0 Q gt 0 FP gt 0 P gt 0 Q gt 0 FP lt 0 Capacitif xz Inductif T a P Inductif E E Capacitif P 0 Q lt 0 FP lt 0 P v 0 Q lt 0 FP gt 0 Q3 Q4 0 NOTE For a device a part of an installation which is only a receiver or generator the advantage of the IEEE convention is that it adds the type of reactive component to the PF and cos q indicators e Lead positive sign for the PF and cos q indicators e Lag negative sign for the PF and cos indicators 92 LV434104 09 2009 The Metering Function Management of the power factor PF and cos q Minimum and Maximum Values Management of the PF and cos q indicators consists of e Defining critical situations e Implementing monitoring of the indicators in accordance with the definition of critical situations Situations are said to be critical when the values of the indicators are around 0 The minimum and maximum values of the indicators are defined for these situations The figure below illustrates the variations of the cos indicator with the definition of the cos MIN MAX and its value according to IEEE convention for a receiver application o on PT
34. no load starts e Load not present e Machines oversized for the application Description Long start motor protection is activated as soon as the average motor current lavg exceeds 10 of the Ir setting value the protection t ong time delay is actuated Long start motor protection compares the value of the average motor current lavg with the setting value of the protection l ong pick up By default long start motor protection is not active After parameter setting long start motor protection is e Active during startup e Not active in steady state Operating Principle Difficult Starting On starting the average motor current lavg overruns the long start motor protection l ong pick up The protection remains active as long as the average motor current lavg has not fallen below the l ong pick up I Diagram I l Diagram II llong 10 Ir le Rees em eee tlon LK m td tlong A B 1A ID I I 1 Motor current 2 Activation of long start motor protection tlong time delay White Protection not active Green Protection active The curve can evolve in one of 2 ways e Diagram I The average motor current lavg has not fallen below the l ong pick up before the end of the tlong time delay starting with too big a load Long start motor protection trips e A Activation of protection time delay 10 of Ir pick up is exceeded e B Protection tripped at the end of the time delay e Diagram II The average motor current lavg
35. protection parameter currently being set Setting a Protection Parameter Using a Dial Setting using a dial or presetting involves the following protection parameters e The Ir and Isd pick ups for Micrologic 5 e The Ir and lg pick ups for Micrologic 6 Turning a dial 4 results simultaneously in e Selection of the screen for the protection parameter assigned to the dial e Unlocking if necessary the padlock the navigation interface is in protection parameter setting mode e Setting the protection parameter assigned to the dial to the value indicated on the dial and on screen The protection parameter is fine tuned on the keypad the setting value cannot exceed that indicated by the dial Setting a Protection Parameter on the Keypad All the protection parameter settings can be accessed on the keypad The user can navigate through the protection parameter settings by means of the 2 and DTO keys e The key can be used to select the parameter to be set e The up arrow indicates the selected parameter e The down arrows indicate that all phases are set to the same value except for the neutral protection setting e Scrolling is cyclical e The protection parameters are set on the keypad by means of the OQO keys The associated navigation arrows indicate the setting options e possible to press the CD key increases the setting value e possible to press the e key decreases the setting value e Ss possible to pr
36. real time values see Power Metering Micrologic E page 80 The sampling method used takes account of the values of the harmonic currents and voltages up to the 15th The sampling period is 512 microseconds The values of the electrical quantities whether measured or calculated in real time are updated once a second Measuring the Neutral Current Micrologic 4 pole or 3 pole trip units with ENCT option measure the neutral current For a 3 pole trip unit the neutral current is measured by adding a special current transformer on the neutral conductor ENCT option for the transformer definition see the Compact NSX 100 630 A Catalogue For a 4 pole trip unit the neutral current is measured systematically The neutral current is measured in exactly the same way as the phase currents Measuring the Phase to Neutral Voltages Micrologic 4 pole or 3 pole trip units with ENVT option measure the phase to neutral or line to neutral voltages V1N V2N and V3N For a 3 pole trip unit it is necessary to e connect the wire from the ENVT option to the neutral conductor e declare the ENVT option configured using the RSU software For 4 pole trip units the phase to neutral voltages are measured systematically The phase to neutral voltages are measured in exactly the same way as the phase to phase voltages Calculating the Average Current and Average Voltage Micrologic trip units calculate the Average current lavg the arithmeti
37. result in injury or equipment damage The fact that a protection has tripped does not remedy the cause of the fault on the downstream electrical equipment Step Action 1 Isolate the feed before inspecting the downstream electrical equipment 2 Look for the cause of the fault 3 Inspect and if necessary repair the downstream equipment 4 Inspect the equipment refastening of connections etc in the event of a short circuit trip 5 Close the circuit breaker again For more information on troubleshooting and restarting following a fault see the Compact NSX circuit breakers User manual Indication on Internal Failure of the Micrologic Trip Unit Screen Cause PO EEE An internal failure on the Micrologic trip unit whether fleeting or permanent has occurred without the circuit breaker tripping the failure does not affect the trip unit protection functions N A 2 B 3 0 A CAUTION RISK OF INCORRECT INFORMATION Replace the Micrologic trip unit at the next maintenance interval Failure to follow these instructions can result in injury or equipment damage Acknowledging the Err Screen The Err screen is acknowledged by pressing the key twice c validation and confirmation which brings up the main screen e The measurements and settings can still be accessed with the Mode key e The Err screen becomes the main screen if the failure is permanent 136
38. see Protection parameter setting page 121 In addition to the devices integrated in the Micrologic trip units Compact NSX circuit breakers are equipped with reflex protection piston effect As soon as a very high short circuit current occurs above the instantaneous protection pick up opening of the main contacts creates an electric arc pressure which acts on a piston instantaneously This piston frees the opening mechanism and causes ultra fast circuit breaker tripping SDTAM Module Option The SDTAM module early tripping function can be used to command contactor opening 400 ms before the calculated circuit breaker tripping in the case of e Long time protection e Phase unbalance protection e Jam motor protection e Underload motor protection The contactor can be closed again automatically or manually depending on the parameter setting of the SDTAM module see the Compact NSX circuit breakers User manual Example of Using the SDTAM Module The figures below illustrate operation of the Jam motor protection without the SDTAM module diagram I and with the SDTAM module diagram II Diagram Diagram II l P gt tjam l l l o m pt SDTAM A B C D A l R poni l A B c D 1A L rr 4 1 Compact NSX circuit breaker status White Open Green Closed Black Tripped 2 Contactor status SD contact in the contactor coil White Open Green Closed 3 Motor current 4 Monitoring by ja
39. the downstream circuit breaker Q2 2 Time discrimination e Aratio of 1 5 between the Isd pick up for short time protection of the trip unit on the upstream circuit breaker Q1 and that of the trip unit on the downstream circuit breaker Q2 is usually sufficient e The tsd time delay for short time protection of the trip unit on the upstream circuit breaker Q1 is higher than that of the trip unit on the downstream circuit breaker Q2 e If the upstream circuit breaker is in position It OFF the downstream circuit breakers must not be in position I t ON 3 Energy discrimination e Energy discrimination is provided by the circuit breaker design and build characteristics The discrimination limit can only be guaranteed by the manufacturer e Forcircuit breakers in the Compact NSX range a ratio of 2 5 between the upstream circuit breaker Q1 and that of the downstream circuit breaker Q2 guarantees total discrimination Ground Fault Protection Discrimination For ground fault protection only the rules for time discrimination should be applied to the protection Ig pick up and tg time delay e Aratio of 1 3 between the lg pick up for ground fault protection of the trip unit on the upstream circuit breaker Q1 and that of the trip unit on the downstream circuit breaker Q2 is usually sufficient e Thetgtime delay for ground fault protection of the trip unit on the upstream circuit breaker Q1 is higher than that of the trip unit on the downstream circuit br
40. the energies gt 6 7 e Active energy Ep in kWh Ep 11318 kWh e Reactive energy Eq in kvarh e Apparent energy Es in kVAh Eq 257 kVAm Es 13815 kVAh ESC v A Screen 7 in the Quick View menu displays gt H 77 e The frequency F in Hz F 50 Hz e The power factor PF e PF 0 73 The cos q Cos q 0 81 ESC v A Number of Screens Available for Compact NSX The examples below illustrate the number of screens available according to the type of Micrologic trip unit and or the type of Compact NSX circuit breaker e f the Compact NSX circuit breaker type is 4 pole equipped with a Micrologic type A trip unit screens 1 and 2 are available e f the Compact NSX circuit breaker type is 4 pole equipped with a Micrologic type E trip unit screens 1 to 7 are available e Ifthe Compact NSX circuit breaker type is 3 pole without ENCT option the IN current is not available on screen 2 e Ifthe Compact NSX circuit breaker type is 3 pole without ENVT option equipped with a Micrologic type E trip unit screen 4 is not available Intelligent Modular Unit IMU Name For optimum use of the electrical equipment the RSU software can be used to assign a name to the IMU relating to the function with which it is associated for more information see The procedure for displaying the IMU name is as follows Step Action Display 1 Select the Quick view menu in the main menu using the A and V keys
41. the underside the sign for the power running through the circuit breaker depends on the type of connection NOTE By default the Micrologic E trip unit signs as positive the powers running through the circuit breaker supplied from the top with loads connected from the underside If the circuit breaker is powered from the underside the powers must be signed as negative The Power sign parameter can be modified using the RSU software see Metering Setup page 123 82 LV434104 09 2009 The Metering Function Power Calculation Algorithm Presentation Input Data Active Powers The algorithms are given for both calculation methods 2 wattmeters and 3 wattmeters The power definitions and calculation are given for a network with harmonics All the calculated quantities are delivered by the Micrologic E trip unit on screen and or via the communication network With the 2 wattmeter calculation method it is not possible to deliver power metering for each phase The input data are the voltages and currents for each phase for more information on calculating harmonics see Harmonic Currents page 87 15 15 vt Vg J2sin not and Vy Y o n 1 in RA 15 15 2 m vin t b Vinn 2sin not and Vos Vin 3 pole or 4 pole trip unit with ENVT n 1 n 1 option 15 15 i t 24 lim 2SIh nat qu and I where ij 1 2 3 phase Using this data the Micrologic E trip unit calculates the various power ratings accordin
42. time delay is associated with the It inverse time the tg parameter curve protection function e ON f t function active e OFF l t function not active e Neutral declaration 3 pole trip unit with ENCT option P a 3 p p ption N Neutral protection active noN Neutral protection not active LV434104 09 2009 31 Using Micrologic Trip Units Micrologic 6 LSIG Protection Parameter Setting Screens Mode Description of Screens Unit Up Down Arrows p Ir Long time protection pick up setting for the phases A The up arrow indicates ord Preset by a dial the Ir parameter The down arrows indicate the 3 phases tr Long time protection time delay setting S The up arrow indicates the tr parameter Isd Short time protection pick up setting for the phases Isd Ir The up arrow indicates the Isd parameter The down arrows indicate the 3 phases tsd Short time protection time delay setting S The up arrow indicates Activation of the l t inverse time curve short time the tsd parameter protection e ON t inverse time curve active e OFF It inverse time curve not active IN protection pick up setting for the neutral 4 pole or 3 IN Ir The down arrow pole trip unit with ENCT option and active neutral indicates the neutral protection li Instantaneous protection pick up value for the phases li In The up arrow indicates and the neutral 4 pole or 3 pole trip unit with E
43. 0 100 A 2000 2000 150A Ir 70 150 A 4 000 4 000 220 A Ir 100 220A 500 class 20 500 class 20 200 class 10 200 class 10 class 5 class 5 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 4 Isd 5 13 x Ir 4 Isd 5 13 x Ir 5 5 2 2 A 2 05 05 02 02 01 j 01 t lt 10 ms t lt 10ms 005 005 PEEP Try EE ETE I 002 s 002 es 001 li 2 17 x In 001 li 15 x In i d 2 345 7 10 20 30 50 70100 200300 5x1 2 345 7 10 20 30 50 70100 200300 illr i I lr Reflex tripping 162 LV434104 09 2009 Tripping and Limitation Curves Tripping Curves Micrologic 6 2 E M electronic trip units Micrologic 6 2 E M 25A E A 10000 amp 4 10000 g 5000 25 A Ir2 12 25A g 9000 2 000 2 000 1 000 class 30 1000 class 20 500 class 10 500 200 class 5 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 Isd 5 13 x Ir 1 1 5 5 2 2 4 4 05 05 02 02 01 AONE 01 005 i gt 005 PTE rtd 002 us 002 001 li z 17 x In 001 5 71 2 345 7 10 20 30 5070100 200300 1 re gt Reflex tripping Micrologic 6 2 E M ground fault protection 10 000 5 000 DB114791 2 000 1 000 500 25A lg 0 6 1 x In 50 A Ig 0 3 1 x In gt 50 A Ig 0 2 1 x In 200 100 t s 005 002 001 05 07 1 2 345 1 2 345 7 10 Sd tt E a 20 30 5 Micrologic 6 2 E M 50 220
44. 0 t s 005 002 001 05 07 1 2 3 45 7 1 2 345 7 10 20 30 e Ir gt LV434104 09 2009 167 Tripping and Limitation Curves Compact NSX100 to 630 Reflex Tripping Tripping Curves Compact NSX100 to 630 devices incorporate the exclusive reflex tripping system This system breaks very high fault currents 20 The device is mechanically tripped via a piston actuated directly by the pressure produced in the DB115721 breaking units by the short circuit NSX630 For high short circuits this system provides a faster break thereby ensuring discrimination Reflex tripping curves are exclusively a function of the i NSX400 circuit breaker rating t ms d 6 NSX250 5 4 NSX100 NSX16 3 2 3 4 6 10 20 30 40 60 100 200 E KA rms gt 168 LV434104 09 2009 Tripping and Limitation Curves Compact NSX100 to 630 Limitation Curves Limitation Curves The limiting capacity of a circuit breaker is its aptitude to let through a current during a short circuit that is less than the prospective short circuit current Isc Prospective Isc peak V N Prospective DB11571
45. 0 Description of the Micrologic 5 and 6 Trip Units liliis 15 Navigation Principles cs oben ek E Enero ER E eA TERES 18 Readout Modes is Hires ie eit hed tA Se et ees bation aee AR ete Qu e TR AI 20 Setting dro m 24 List of Metering Screens l liiiliseeelseseeeee teen teens 28 List of the Protection Parameter Screens 00 cette teens 29 Chapter 2 The Protection Function 00 cece eee eee eee eee 35 2 1 Electrical Distribution Application 0 0 0 0 cette eae 36 Electrical Distribution Protection 1 2 2 cece tenes 37 Long Time Protection ui eer batt Nata See ite tas ea Res 40 Short Time Protection ote bem debeat tem deett ban PRU Peor iem 43 Instantaneous Protection lille anna 45 Ground Fault Protectiori si enes ere RR ela Rena thew ed MOIS nix RA HE 46 Neutral Protection ceina eea IR rev Ere a RR Ee c E apne ede eue 48 ZSV FUNCION nee n 51 Using the ZSI Function with Compact NSX ssssssesseseeee tees 52 2 2 Motor Feeder Application 00 cece Ine 54 Protection for Motor Feeders 0 0 eee teeta 55 Long Time Protection uie m ket e Roe dune AR B asec bald ORO R Soden E 59 Short Time Protectloh eoe oa che one ORE XEM MES Depp WEE 62 Instantaneous Protection llle tenet eee 63 Ground Fault Protection lsieeeeeeseee emer 64 Phase Unbalance Protection 000 ee eee eee eee 66 Jam Moto
46. 0 6 0 2 0 7 0 2 0 8 0 2 1 0 2 1 OFF keypad The accuracy range is 10 tg Time Delay Setting Value The tg time delay setting value is expressed in seconds The non tripping and breaking times are expressed in milliseconds The default tg time delay setting value is 0 s with l OFF Table of tg setting values with the It OFF ON option expressed in second s and the associated non tripping and breaking times expressed in milliseconds ms Parameter Value tg with I t OFF s 0 0 1 0 2 0 3 0 4 tg with I t ON s 0 1 0 2 0 3 0 4 Non tripping time ms 20 80 140 230 360 Maximum breaking time ms 80 140 200 320 500 It ON OFF Function Ground fault protection is a short circuit protection like short time protection The same operating principle applies as for the I t function see Short Time Protection page 43 Ground Fault Protection Test The ground fault protection test can be performed on the keypad of the Micrologic trip unit see Ground Fault Protection Test Micrologic 6 page 22 This test can be used to check the trip unit s electronic tripping function LV434104 09 2009 47 The Protection Function Neutral Protection Presentation Neutral protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution applications against overload and short circuit currents It is avail
47. 00 200300 Eg Ir MM 7 Reflex tripping 158 LV434104 09 2009 Tripping and Limitation Curves Tripping Curves TM magnetic trip units cont TM80D TM100D TM125D TM160D g 10 000 g 10 000 Ei 5 000 Ei 5 000 a a 2 000 2 000 1 000 1 000 500 500 200 200 100 100 50 50 20 20 10 10 5 5 TM125D Im 10 x In t s t s 2 2 1 1 5 5 TM160D TM80D TM100D Im 8 x In 2 Im 8 x In 2 A 4 05 05 02 02 01 01 t lt 10 ms t lt 10 ms 005 005 002 002 001 001 5 71 2 345 7 10 20 30 50 70100 200300 5 71 2 345 7 10 20 30 50 70100 200300 llr Ir E Reflex tripping TM200D TM250D 10 000 5 000 DB114765 2 000 1 000 500 200 100 t s 0 5 2 TM200D TM250D 1 Im 25 10x In 5 2 j t lt 10 ms 005 gt 002 001 D 1 2 345 7 10 20 30 5070100 200300 m___ ii I lr Reflex tripping LV434104 09 2009 159 Tripping and Limitation Curves Tripping Curves Micrologic 2 2 and 2 2 G electronic trip units Micrologic 2 2 40 10 000 5 000 DB114766 2 000 1 000 500 200 t s 002 001 ic 1 Reflex tripping Micrologic 2 2 G 40 160A 10 000 5 000 DB114768 2 000 1 000 500 200 100 t s 001 Bind Reflex tripping 160A 2 345 7 10 Ur 2 I Ir Microl
48. 1 kvar 1 1000 kvar Total distorting power measurement Dtot Maximum value of total distorting power Dtot MAX e Minimum value of total distorting power Dtot MIN kvar 3000 kvar 3000 2 96 3000 3kvar 3 3000 kvar 100 LV434104 09 2009 The Metering Function Operating Indicators Unit Measurement Range Accuracy Accuracy Range Measurement Operating quadrant measurement N A 1 2 3 4 N A N A Direction of phase rotation measurement N A 0 1 N A N A Type of load measurement leading lagging N A 0 1 N A N A Energy Quality Indicators The accuracy range is indicated for a Micrologic trip unit operation e In the current range 0 1 1 2 In e Inthe voltage range 70 850 V Measurement Unit Measurement Accuracy Accuracy Range Range e Measurement of power factors PF1 PF2 PF3 and cos e 1 cos 1 00 1 00 2 96 1 00 0 50 0 50 1 00 2 cos 3 for each phase Only with 4 pole or 3 pole trip unit with ENVT option total power factor PF and cos e Maximum values power factors PF1 MAX PF2 MAX PF3 MAX and cos 1 MAX cos 2 MAX cos 3 MAX for each phase Only with 4 pole or 3 pole trip unit with ENVT option e ofthe power factor PF MAX and cos o MAX e Minimum values power factors PF1 MIN PF2 MIN PF3 MIN and cos 1 MIN cos 2 MIN cos q 3 MIN for e
49. 105 of the Ir setting Motor e Ready LED green Blinks slowly when the electronic trip unit is ready to provide protection S 1900 E bod Overload temperature alarm LED red Shows a steady light when the motor 2 O X TO thermal image exceeds 95 of the Ir setting Micrologic trip units feature a test port specifically for maintenance actions see Compact NSX circuit breakers User manual This port is designed for e Connecting a pocket battery module for local testing of the Micrologic trip unit e Connecting the maintenance module for testing setting the Micrologic trip unit and or for installation diagnostics LV434104 09 2009 15 Using Micrologic Trip Units Set of 2 Dials and a Microswitch Both dials are assigned to presetting the protection parameters The microswitch is assigned to locking unlocking the protection parameter settings 140 byi7s T LONE 7s H 1 125 i 92000 1 125 200 5 11097 225 11099 225 1 2 100 250 Or A Ir A 5 aj 6 o 4 5 El 914 D 2A 3a 97 9 2B 8 2 9 Ze 809 57 1 9 159 0 9 I 2 orr S 3 Isd xIr 3 Ig xIn No Description 1 Pick up Ir preset dial for all Micrologic trip unit types 2 Preset dial 2A Micrologic 5 For the short time protection pick up Isd e 2B Micrologic 6 For the ground fault protection pick up lg 3 Microswitch for locking unlocking the protection parameter settings Displa
50. 105 6 56x105 1 82x10 Al 7 52x105 CSA 16 mm 25 mm 35 mm 50 mm PVC Cu 3 4x10 8 26x10 1 62x107 3 31x107 Al 1 39x105 3 38x10 6 64x105 1 35x107 PRC Cu 4 69x105 1 39x107 2 23x107 4 56x107 Al 1 93x105 4 70x105 9 23x105 1 88x107 Example Is a Cu PVC cable with a CSA of 10 mm adequately protected by an NSX160F The table above indicates that the permissible stress is 1 32x109 A s All short circuit currents at the point where an NSX160F Icu 35 kA is installed are limited with a thermal stress less than 6x10 A s curve page E 14 Cable protection is therefore ensured up to the limit of the breaking capacity of the circuit breaker LV434104 09 2009 169 Tripping and Limitation Curves Current limiting curves Voltage 400 440 V AC Voltage 660 690 V AC Limited short circuit current kA peak Limited short circuit current kA peak 300 300 DB116370 200 200 146 146 100 100 8 8 60 60 L EO NSX630 50 NSX400 L kA 40 H kA 40 NSX630 30 NSX250 30 NSX400 NSX100 NSX160 20 20 NSX250 NSX100 NSX160 10 10 8 8 7 7 6 6 5 5 4 4 2 3 4 6 10 20 30 4050 70 100 200 300 2 3 4 6 10 20 30 40 er 100 200 300 IAA A rms AA cr i kA rms A Energy limiting curves Voltage 400 440 V AC Voltage 660 690 V AC Limited energy Limited energy DB116372 S L NSX630 L H FI N EHZAS Lan NSX630 NSX400 NSX400 F N L BSIEFI N HAASTEEL S56 NSX250 N F NSX100 NSX160 I TTE j NSX250 NSX100 NSX160 2
51. 212 must be added by a Masterpact or Compact NS circuit breaker see Compact NSX 100 630 A Catalogue The figure below shows the connection of the LV434212 filter Masterpact Testing the ZSI Function Connection and operation of the ZSI function can be tested using the LTU software LV434212 d L d zl c LV434104 09 2009 53 The Protection Function 2 2 Motor Feeder Application Aim This section describes the protection characteristics of the Micrologic 6 E M trip unit dedicated to protecting motor feeders What s in this Section This section contains the following topics Topic Page Protection for Motor Feeders 55 Long Time Protection 59 Short Time Protection 62 Instantaneous Protection 63 Ground Fault Protection 64 Phase Unbalance Protection 66 Jam Motor Protection 68 Underload Motor Protection 70 Long Start Motor Protection 71 54 LV434104 09 2009 The Protection Function Protection for Motor Feeders Presentation Description Operating States Startup Micrologic 6 E M trip units on Compact NSX circuit breakers e Provide protection for direct on line motor feeders direct on line starting is the most widely used type of motor feeder e Integrate the basic protections overload short circuit and phase unbalance for the motor feeder and additional protections and or specific options for mot
52. 4 09 2009 137 Operating Assistance Examples of Using Alarms Presentation The choice of which quantity is to be monitored and the alarm parameter settings are made using the RSU software see Alarm Setup page 125 Alarms on Superiority Condition Alarms on superiority condition are dedicated to monitoring Overvoltages Phase unbalance Micrologic 6 E M Overcurrents Overfrequencies Current unbalances Power overruns Total harmonic distortion THD overruns The value of the drop out threshold must always be lower than the pick up threshold Example Setting the overvoltage monitoring parameters code 79 see Detailed Tables of Alarms page 110 using the RSU software Alarms setup Selected alarm Lagging cos j IEEE over VMAX L L gt Code 78 Priority High Y Pick up Drop out EM 5 value v 500 44 value v 420 a 4 delay s 5 Sy aetay cs 2 EH J x 1 Priority level High 2 Drop out threshold 420 V 3 Drop out time delay 2 s 4 Pick up time delay 5 s 5 Pick up threshold 500 V Alarms on Inferiority Condition The value of the drop out threshold must always be higher than the pick up threshold Alarms on inferiority condition are dedicated to supervision of e Undervoltages e Underloads Micrologic 6 E M e Underfrequencies 138 LV434104 09 2009 Operating Assistance Alarms on Equality Condition The measurements associated with alarms o
53. 6 4 The Communication Network Aim This chapter describes the supervision and monitoring options for an installation using the data transmitted by the communication network What s in this Section This section contains the following topics Topic Page Compact NSX Circuit Breaker Communication 151 History and Time Stamped Information 152 Maintenance Indicators 153 150 LV434104 09 2009 Operating Assistance Compact NSX Circuit Breaker Communication Presentation Compact NSX circuit breakers are integrated in a communication network created using Modbus protocol Modbus communication offers the options of e Reading remotely e The circuit breaker states e Measurements e Operating assistance information e Controlling the circuit breaker remotely For more information on the Modbus communication network see the Modbus Compact NSX User manual For more information on communicating modules refer to the ULP system User manual Remote Readout of the Circuit Breaker States Remote readout of the circuit breaker states can be accessed by all Compact NSX circuit breakers equipped with a BSCM module The following data is made available via the communication network e Open closed position OF e Trip indicator SD e Electrical fault indicator SDE For more information refer to the Compact NSX circuit breakers User manual Remote Readout of the Measurements The measurement reado
54. 630 A rating the OSN function is limited to In 630 A Using the ENCT Option Step Action 1 Connect the neutral conductor to the ENCT option primary terminals H1 H2 Remove the bridge if present between terminals T1 and T2 of the Micrologic trip unit 2 3 Connect the ENCT option secondary terminals T1 T2 to terminals T1 and T2 of the Micrologic trip unit 4 Declare the ENCT option when setting the protection parameters for the Micrologic trip unit NOTE If the ENCT option is declared before its installation the Micrologic trip unit develops a fault ENCT screen It is then necessary to install the ENCT option or bridge between the T1 and T2 terminals of the Micrologic trip unit to acknowledge the ENCT screen Acknowledgement is made by pressing the OK key twice validation and confirmation 50 LV434104 09 2009 The Protection Function ZSI Function Presentation The ZSI Zone Selectivity Interlocking function is a technique used to reduce the electrodynamic stress on equipment when time discrimination is used Principle of the ZSI Function The ZSI function improves time discrimination by being selective about the position of the fault A pilot wire links the installed circuit breaker trip units and can be used to manage the trip time delay for upstream circuit breaker Q1 according to the fault position The trip units on circuit breakers Q1 and Q2 have the same time delay settings as w
55. 9 7 N current Prospective j Isc Limited Isc peak Actual current Limited Isc X gt tc t The exceptional limiting capacity of the Compact NSX range is due to the rotating double break technique very rapid natural repulsion of contacts and the appearance of two arc voltages in series with a very steep wave front Ics 100 Icu The exceptional limiting capacity of the Compact NSX range greatly reduces the forces created by fault currents in devices The result is a major increase in breaking performance In particular the service breaking capacity Ics is equal to 100 of Icu The Ics value defined by IEC standard 60947 2 is guaranteed by tests comprising the following steps m break three times consecutively a fault current equal to 100 of Icu m check that the device continues to function normally that is o it conducts the rated current without abnormal temperature rise o protection functions perform within the limits specified by the standard o suitability for isolation is not impaired Longer service life of electrical installations Current limiting circuit breakers greatly reduce the negative effects of short circuits on installations Thermal effects Less temperature rise in conductors therefore longer service life for cables Mechanical effects Reduced electrodynamic forces therefore less risk of electrical contacts or busbars being deformed or broken Electromagnetic effects F
56. A 50A 80A 150A 220A Ir 25 50 A Ir 35 80 A Ir 70 150 A Ir 100 220 A class 30 class 20 class 10 class 5 Isd 5 13 x Ir t lt 10 ms HELF li 15 x In a4 2 345 7 10 20 30 5070100 200300 A a LV434104 09 2009 163 Tripping and Limitation Curves Compact NSX400 to 630 Distribution Protection Tripping Curves Micrologic 2 3 5 3 and 6 3 Aor E electronic trip units Micrologic 2 3 250 400A Micrologic 2 3 630A amp A 10000 EE amp A 10000 5000 250 A Ir 63 250 A 5000 EET 8 I0 A Fe 44 A00A 8 630 A Ir 225 630 A 2 000 2 000 1000 1000 500 500 200 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 1 Isd 1 5 10 x Ir Isd 1 5 10 x Ir 5 5 2 2 4 4 05 05 02 02 01 t lt 10 ms 01 t lt 10ms 005 z 005 m gt LLLI I TI LEE T I 002 A 002 p 001 li 12x In 001 li 2 11 x In 571 2 345 7 10 20 30 5070100 200300 57 1 2 345 7 10 20 30 5070100 200300 ir lt illr 7 Reflex tripping Micrologic 5 3 and 6 3 A or E 400 A Micrologic 5 3 and 6 3 A or E 630 A amp A 10 000 amp 10000 amp 5000 400 A Ir 100 400 A amp 5000 630 A Ir 225 630 A 2 000 2 000 1000 1000 500 500 200 200 100 100 tr 0 5 16 s tr 0 5 16 s 50 50 20 20 10 10 Isd 1 5 10 x1 3 isd 1 5 10x1 t s sa i T xir t s sd x T xir 2 2 1 1 5 5 2 2 4 Pt O
57. FF 4 PtOFF 05 05 02 02 01 01 005 t lt 10 ms P 005 t lt 10 ms gt 002 002 of li 2 1 5 12 In LIII ne li 1 5 11 In LI 571 2 345 710 205 7 10 20 30 50 5 71 2 345 710 205 7 10 20 30 50 r lt l ln C il rm a il In gt 7 Reflex tripping 164 LV434104 09 2009 Tripping and Limitation Curves Tripping Curves Micrologic 6 3 A or E electronic trip units cont Micrologic 6 3 A or E ground fault protection 10 000 5 000 DB114772 2 000 40 A lg 0 4 1 x In 1000 gt 40A Ig 0 2 1xIn 500 200 100 t s Pt OFF 005 002 001 05 07 1 2 345 7 1 2 345 7 10 20 30 IF D LV434104 09 2009 165 Tripping and Limitation Curves Compact NSX400 to 630 Motor Feeder Protection Tripping Curves Micrologic 1 3 M and 2 3 M electronic trip units Micrologic 1 3 M 320A Micrologic 1 3 M 500A A 10000 E 10 000 A 5 000 t 5 000 21 A 2 000 2 000 1 000 1 000 500 500 200 200 100 Thermal withstand 100 Thermal withstand 50 50 20 20 10 10 5 5 t s t s 2 2 1 1 B5 5 2 Isd 5 13 x In 2 Isd 5 13 x In Al 05 05 02 02 01 t lt 10ms 01 t lt 10 ms 005 005 ELLE I VET T TET 002 fs 002 Hee 001 li 15x In 001 li 13x In 5 71 2 345 7 10 20 30 50 70100 200300 5 71 2 345 7 10 20 30 5070100 200300 i A A ln E Ed
58. Indicate the duration of the calculation window using the scroll bars in the Interval dropdown list the duration can be selected from 5 to 60 minutes in steps of 1 minute Current demand Window type Slidding Interval min 15 zx External Neutral Voltage Tap T Reg 3314 31 Current demand setup In the Current demand Interval window indicate the duration of the calculation window using the scroll bars in the Interval dropdown list the duration can be selected from 5 to 60 minutes in steps of 1 minute The calculation window type must be sliding window Quality Indicator Setup The table below illustrates the parameter settings for the cos and power factor PF indicators in the Services tab Screen Action Metering setup Power sign ler Total active Power 0 000 kw Power factor convention IEEE X Select the sign convention in the Power factor sign window The default parameter setting for the sign convention is the IEEE convention Energy Accumulation Mode Setup The table below illustrates the energy accumulation mode setup in the Services tab Screen Action Power demand Window type sliding v Interval min 15 4 Energy acc mode absolute Select the energy accumulation mode in the Energy accu mode window Absolute energy The energies supplied and consumed are counted positively e Signed energy The energy supplied is valued n
59. LV434104 09 2009 Operating Assistance Indication on Internal Fault of the Micrologic Trip Unit Screen Cause Ir tr isd tsd li xin N 1A 2 B 3 0 A serious internal fault has occurred in the Micrologic trip unit This fault trips the circuit breaker A CAUTION RISK OF UNPROTECTED EQUIPMENT Replace the Micrologic trip unit immediately Failure to follow these instructions can result in injury or equipment damage Acknowledging the StOP Screen Indication of Downloading the Firmware The StOP screen cannot be acknowledged using the c key e Itis no longer possible to close the Compact NSX circuit breaker e The measurements and settings can no longer be accessed with the Mode key e The StOP screen becomes the main screen Screen Cause Ir tr isd tsd li xin N 1 A 2 B 3 0 The Micrologic trip unit is waiting for or in the process of downloading the firmware using the RSU software duration 3 minutes approx e The trip unit protections are still operational e Access to measurements and settings via the Micrologic trip unit dials or keypad or via the communication option is interrupted If the boot message persists after several download attempts replace the Micrologic trip unit For more details on delivery of and downloading the firmware see Parameter Setting Using the RSU Software page 118 and the RSU Software Online Help LV43410
60. Low voltage electrical distribution Compact NSX Micrologic 5 6 Electronic trip units User manual 09 2009 Schneider Schneider Electric assumes no responsibility for any errors that may appear in this document If you have any suggestions for improvements or amendments or have found errors in this publication please notify us No part of this document may be reproduced in any form or by any means electronic or mechanical including photocopying without express written permission of Schneider Electric All pertinent state regional and local safety regulations must be observed when installing and using this product For reasons of safety and to help ensure compliance with documented system data only the manufacturer should perform repairs to components When devices are used for applications with technical safety requirements the relevant instructions must be followed Failure to use Schneider Electric software or approved software with our hardware products may result in injury harm or improper operating results Failure to observe this information can result in injury or equipment damage 2009 Schneider Electric All rights reserved LV434104 09 2009 Table of Contents Safety Information 2 2042 dh RI E RR AR Aa AA 5 About the BOOK v Lx ELA 4 EXE WEES eR qe eee ee 7 Chapter 1 Using Micrologic Trip Units llle 9 The Micrologic Range of Trip Units llle RII 1
61. Micrologic 1 3 M l 400 or 630 A Motor Micrologic 2 2 G LSo 100 160 or 250A Generator Micrologic 2 3 LSo 400 or 630 A Distribution Micrologic 2 3 M LSo 400 or 630 A Motor Micrologic 5 2 A LSI 100 160 or 250A Ammeter Distribution Micrologic 5 3 E LSI 400 or 630 A Energy Distribution Micrologic 6 3 E M LSIG 400 or 630A Energy Motor Definition of LSIG Parameters l Instantaneous L Long time So Short time fixed time delay Short time G Ground In Rating of Micrologic Trip Units The In rating in amps of a Micrologic trip unit corresponds to the trip unit setting range maximum value The setting range is indicated on the label on the front face of the trip unit this label is visible on the front face of the Compact NSX circuit breaker after the trip unit has been fitted 100 250A Example Micrologic 5 2 A 250 trip unit e Setting range 100 250 A e In rating 250A 12 LV434104 09 2009 Using Micrologic Trip Units Integrating Micrologic Trip Units on the Compact NSX Range of Circuit Breakers Micrologic 2 5 and 6 trip units can be used on any Compact NSX circuit breaker The table below indicates which devices can be used according to the In rating of the distribution trip units and the circuit breaker size In Rating 40 100 160 250 400 630 Compact NSX100 x x Compact NSX160 x x x Compact NSX250 x x x x Compact NSX400 x 1 x Compact NSX630 x 1 x x 1
62. Micrologic 2 only Micrologic 2 M and 6 E M trip units can be used on any Compact NSX circuit breaker The table below indicates which devices can be used according to the In rating of the motor trip units and the circuit breaker size In Rating 25 50 80 100 150 220 320 500 Compact NSX100 x x x 1 x 2 Compact NSX160 x x x 1 x 2 x Compact NSX250 x x x 1 x 2 x x Compact NSX400 x Compact NSX630 x x 1 Micrologic 6 E M only 2 Micrologic 2 M only Micrologic 1 3 M trip units can be used on any Compact NSX400 and Compact NSX630 circuit breaker The table below indicates which devices can be used according to the In rating of the motor trip units and the circuit breaker size In Rating 320 500 Compact NSX400 x Compact NSX630 x x Upgradability of Trip Units Onsite swapping of trip units is simple and safe e Noconnections to make e No special tools e g calibrated torque wrench e Compatibility of trip units ensured by mechanical cap e Torque limited screw ensures safe mounting see drawing below The safety of the swapping process eliminates the risk of incorrect tightening or oversights The simplicity of the swapping process means it is easy to make the necessary adjustments as operation and maintenance processes evolve NOTE When the trip unit has been mounted by this means the trip unit can still be removed the screw
63. Micrologic Trip Units Keypad The 5 button keypad is used for navigation Key Description Selecting the mode Scrolling navigation e GE Navigation back metering or setting the protection parameters e Navigation forward metering or setting the protection parameters Confirmation Micrologic Trip Unit Power Supply e The Micrologic trip unit is powered with its own current in order to guarantee the protection functions If there is no optional external 24 VDC power supply the Micrologic trip unit only works when the circuit breaker is closed When the circuit breaker is open or the through current is low 15 to 50 A depending on the rating the Micrologic trip unit is no longer powered and its display switches off e An external 24 VDC power supply for the Micrologic trip unit is optional for e Modifying the setting values when the circuit breaker is open e Displaying measurements when there is a low current through the circuit breaker 15 to 50 A depending on the rating when the circuit breaker is closed e Continuing to display the reason for the trip and the breaking current when the circuit breaker is open The external 24 VDC power supply is available to the Micrologic trip unit once it has been connected to another module in the ULP system Modbus communication interface module front display module FDM121 or maintenance module When the Micrologic trip unit is not connecte
64. Monitoring the leading cos Setting the SDx Output Parameters The 2 alarms defined can each be associated with an SDx module output see Setting the SDx Module Output Parameters page 127 e With output Out1 alarm code 124 monitoring of the lagging cos 9 e With output Out2 alarm code 121 monitoring of the leading cos q On starting the power at t2 since the load is lagging too much output Out1 will be activated 1 The Micrologic trip unit display will indicate Ir tr isd tsd li xln N 1 A 2 B 3 C 1 The output must be configured in permanent latching mode Acknowledging the Out1 Screen The Out1 screen can only be acknowledged if the alarm is no longer active After startup of the capacitive compensation the alarm is no longer active The Out1 output is acknowledged by pressing the 99 key twice validation and confirmation LV434104 09 2009 141 Operating Assistance 6 2 FDM121 Switchboard Display Unit Aim This section describes the FDM121 switchboard display unit What s in this Section This section contains the following topics Topic Page The ULP System 143 Main Menu 145 Quick View Menu 146 142 LV434104 09 2009 Operating Assistance The ULP System Definition The ULP Universal Logic Plug system is a connection system which can be used to construct an electrical distribution solution integrating metering communication and operating assistanc
65. N L N V3N MIN L N 1 Minimum value of the MIN phase to phase voltages V12 V23 V31 Average voltage measurements Vavg L L and Vavg L N e Maximum value of average voltages Vavg MAX L L and Vavg MAX L N Minimum value of average voltages Vavg MIN L L and Vavg MIN L N 1 V1N V2N V3N with 4 pole or 3 pole trip unit with ENVT option 98 LV434104 09 2009 The Metering Function Voltage Unbalance Metering The accuracy range is indicated for Micrologic trip unit operation in the voltage range 70 850 V Measurement Unit Measurement Accuracy Accuracy Range Range e Phase to phase voltage V12unb L L V23unb L L 96 Vavg L L 100 10096 1 100 100 96 V31unb L L and phase to neutral voltage V1Nunb L N 96 Vavg L N V2Nunb L N V3Nunb L N unbalance measurements 1 e Maximum values of phase to phase voltage unbalances V12unbMAX L L V23unbMAX L L V31unbMAX L L and phase to neutral voltage unbalances V1NunbMAX L L V2NunbMAX L L V3NunbMAX L L 1 e Maximum values MAXMAX of the MAX of the phase to phase and phase to neutral voltage unbalances 1 1 V1N V2N V3N with 4 pole or 3 pole trip unit with ENVT option NOTE e The unbalance values are signed relative values e The unbalance maximum values MAX are not signed absolute values LV434104 09 2009 99 The Metering Function Power Metering The accuracy range is ind
66. NCT the li parameter option and active neutral protection The down arrows indicate the 3 phases Ig Ground fault protection pick up setting lg In The up arrow indicates Preset by a dial the lg parameter The down arrows indicate the 3 phases tg Ground fault protection time delay setting S The up arrow indicates Activation of the I t inverse time curve ground fault the tg parameter protection e ON t inverse time curve active e OFF It inverse time curve not active Activation of neutral declaration 3 pole trip unit with Pu Pe ENCT option N Neutral protection active noN Neutral protection not active 32 LV434104 09 2009 Using Micrologic Trip Units Micrologic 6 E M LSIG Protection Parameter Setting Readout Screens Mode Description of Screens Unit Up Down Arrows p Ir Long time protection pick up value for the phases A The up arrow indicates o a the Ir parameter The down arrows indicate the 3 phases Cl Long time protection trip class value at 7 2 Ir S The up arrow indicates the Cl parameter Y Type of ventilation The up arrow indicates e Auto Natural ventilation by the motor the Y parameter e Moto Forced ventilation by a dedicated motor Isd Short time protection pick up value for the phases A The up arrow indicates the Isd parameter The down arrows indicate the 3 phases lunbal Phase unbalance protection pick up value 96 The up a
67. Reflex tripping Micrologic 6 2 A or E ground fault protection 10 000 5 000 DB114772 2 000 1 000 500 40A 1g 04 1 x In gt 40 A lg 0 2 1 x In 200 100 t s Pt OFF 005 002 001 05 07 1 2 345 7 1 2 345 7 10 20 30 3A In gt DB114771 Micrologic 5 2 and 6 2 Aor E 250 A 10 000 5 000 250 A Ir 90 250 A 2 000 1 000 500 200 tr 0 5 16 s t s Isd 1 5 10 x Ir lt OFF t lt 10 ms D 002 001 li 1 5 12 In 53gf 1 2 345710 205 7 10 20 30 50 _ __ l Ir lt l In LV434104 09 2009 161 Tripping and Limitation Curves Compact NSX100 to 250 Motor Feeder Protection Tripping Curves MA magnetic trip units MA2 5 MA100 MA150 and MA220 A 10000 E 10 000 Ei 5 000 5 5 000 a a 2 000 2000 1 000 1 000 500 500 Thermal withstand 200 200 MA220 100 Thermal withstand 100 MAISO 50 50 20 20 10 10 5 5 t s t s 2 2 Im 6 14xIn 1 Im 2 9 14x In 1 5 MA100 4P 5 2 2 2 1 05 05 02 02 01 01 t 10 ms t 10 ms 005 005 002 002 001 001 7 4 2 345 7 10 20 30 5070100 200300 51 2 345 7 10 20 30 50 70100 200300 E te cc lt gt 7 Ns A A A gt Reflex tripping Micrologic 2 2 M electronic trip uni Micrologic 2 2 M 25 A Micrologic 2 2 M 50 220 A opes A10 000 50 A Ir 25 50 A 8 25 A Ir 12 8 100 A Ir 5
68. Reflex tripping Micrologic 2 3 M 320A Micrologic 2 3 M 500A 8 A 10000 g 10 000 s 320 A Ir 160 320 A g 5000 500 A Ir 250 500 A 2000 2000 1 000 1 000 500 class 20 500 class 20 200 class 10 200 class 10 class 5 class 5 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 4 Isd 5 13 x Ir 4 Isd 5 13 x Ir B5 5 2 2 S Al 05 05 02 02 01 01 t lt 10 ms t lt 10 ms 005 005 FEE ELT I TTA T TT 002 002 ae 001 li 2 15 x In 001 li 13x In B 1 2 345 7 10 20 30 50 70100 200300 5 1 2 345 7 10 20 30 50 70100 200300 llr llr Reflex tripping 166 LV434104 09 2009 Tripping and Limitation Curves Tripping Curves Micrologic 6 3 E M electronic trip units Micrologic 6 3 E M 320A Micrologic 6 3 E M 500A g 10 000 g 10 000 B 5000 320 A Ir 160 320 A amp 5000 500 A Ir 250 500 A 2 000 2 000 1000 class 30 1000 class 30 class 20 class 20 500 class 10 500 class 10 200 class 5 200 class 5 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 i Isd 5 13 x Ir i Isd 5 13 x Ir 5 5 2 2 4 4 05 05 02 02 n t 10 ms n t 10 ms 005 005 HET TIE FETTE ret 002 c 002 il 001 li 15 x In 001 li 2 13 x In DP d 2 345 7 10 20 30 50 70100 200300 B d 2 345 7 10 20 30 50 70100 200300 lt r D oaqe gcMar Reflex tripping Micrologic 6 3 E M ground fault protection 10 000 5 000 DB115634 2 000 1 000 500 200 10
69. Return KVAr power 25 1 1000 kvar 1 3000 s 100 kvar 40s 10s Under total KVA 26 1 1000 kVA 1 3000 s 100 kVA 40s 10s Under direct KW 27 1 1000 kW 1 3000 s 100 kW 40s 10s Under direct KVAr 29 1 1000 kvar 1 3000 s 100 kvar 40s 10s Leading PF IEEE 1 31 0 0 99 1 3000 s 0 80 40 s 10s Lead or Lag PF IEC 1 33 0 0 99 1 3000 s 0 80 40s 10s Lagging PF IEEE 1 34 0 99 0 1 3000 s 0 80 40s 10s Over THD Current I1 35 0 500 96 1 3000 s 15 96 40s 10s Over THD Current I2 36 0 500 96 1 3000 s 15 96 40s 10s Over THD Current I3 37 0 500 96 1 3000 s 15 96 40s 10s Over THD V1N 38 0 500 96 1 3000 s 5 96 40s 10s Over THD V2N 39 0 500 96 1 3000 s 5 96 40 s 10s Over THD V3N 40 0 500 96 1 3000 s 5 96 40s 10s Over THD V12 41 0 500 96 1 3000 s 5 96 40s 10s Over THD V23 42 0 500 96 1 3000 s 5 96 40s 10s Over THD V31 43 0 500 96 1 3000 s 5 96 40s 10s Over Current lavg 55 0 2 10 In 1 3000 s In 60s 15s Over I MAX 1 2 3 56 0 2 10 In 1 3000 s In 60s 15s 1 The type of alarms associated with monitoring the cos e and PF indicators must always be consistent with the choice of sign convention IEEE or IEC for the PF indicator LV434104 09 2009 111 Alarms Label Code Setting Range Default Setting Thresholds Time Delay Thresholds
70. Up Setting Value The long time protection tripping range is 1 05 1 20 Ir according to standard IEC 60947 2 The default Ir pick up setting value is In maximum dial value The Ir pick up is preset by a dial In Rating Preset Values of Ir A Depending on the Trip Unit In Rating and the Dial Position 25A 12 14 16 18 20 22 23 24 25 50A 25 30 32 36 40 42 46 47 50 80A 35 42 47 52 57 60 63 72 80 150A 70 80 90 100 110 120 133 140 150 220A 100 120 140 155 170 185 200 210 220 320A 160 180 200 220 240 260 280 300 320 500 A 250 280 320 360 380 400 440 470 500 The accuracy range is 5 20 Fine tuning is performed on the keypad in steps of 1 A e The setting range maximum is the preset value displayed by the dial e The setting range minimum is the minimum preset value Example A Micrologic 6 E M trip unit In 500 A is preset by the dial at 470 A The fine tuning range on the keypad is 250 470 A Trip Class Cl Setting Value The trip class corresponds to the value of the trip time delay for a current of 7 2 Ir according to standard IEC 60947 4 1 The class is set via the keypad using any of the 4 defined values 5 10 20 and 30 The default class setting value is 5 minimum value The table below shows the value of the trip time delay depending on the current in the load for all 4 trip classes Current in the Load Trip Class Cl 5 10 20 30 tr Trip
71. able on e 4 pole trip units e on the 3 pole trip units with ENCT option It is identical for Micrologic 5 and 6 trip units Description The neutral conductor if it is distributed and identical to the phases in size i e full neutral is normally protected by the phase protection The neutral must have specific protection if e lt is reduced in size compared to the phases e Non linear loads generating third order harmonics or multiples thereof are installed It may be necessary to switch off the neutral for operational reasons multiple source diagram or safety reasons working with power off To summarize the neutral conductor can be e Non distributed 3 pole circuit breaker e Distributed not switched off and not protected 3 pole circuit breaker e distributed not switched off but protected 3 pole circuit breaker with ENCT option e Distributed switched off and protected 4 pole circuit breaker Compact NSX trip units are suitable for all protection types Compact NSX Possible Types Neutral Protection 3 pole circuit breaker 3P 3D None 3 pole circuit breaker with ENCT option 3P 3D None 3P 3D N 2 Half neutral 3P 3D N Full neutral 3P 3D OSN Oversized neutral 4 Pole Circuit Breaker 4P 3D None 4P 3D N 2 Half neutral 4P 4D Full neutral 4P 4D OSN Oversized neutral P Pole D Trip unit N Neutral protection 48 LV434104 09 2009 The Protection
72. ach phase Only with 4 pole or 3 pole trip unit with ENVT option total power factor PF MIN and cos o MIN 10 500 1220 In e Measurement of the total harmonic current distortion 96 Ifund 0 gt 1000 10 THD for each phase THD I1 THD I2 THD I3 e Maximum values of the total harmonic current distortion THD for each phase THD I1 MAX THD I2 MAX THD I3 MAX e Minimum values of the total harmonic current distortion THD for each phase THD I1 MIN THD I2 MIN THD I3 MIN 2 500 96 V gt 100 Volt Vfund L L Vfund L N e Measurement of the total harmonic phase to phase 0 gt 1000 596 voltage THD V12 L L THD V23 L L THD V31 L L and phase to neutral voltage THD V1N L N THD V2N L N THD V3N L N distortion 1 e Maximum values of the total harmonic phase to phase voltage THD V12 MAX L L THD V23 MAX L L THD V31 MAX L L and phase to neutral voltage THD V1N MAX L N THD V2N MAX L N THD V3N MAX L N distortion 1 e Minimum values of the total harmonic phase to phase voltage THD V12 MIN L L THD V23 MIN L L THD V31 MIN L L and phase to neutral voltage THD V1N MIN L N THD V2N MIN L N THD V3N MIN L N distortion 1 Frequency measurement Hz 15 0 440Hz 0 2 45 65 Hz Maximum frequency Minimum frequency 1 THD V1N THD V2N THD V3N with 4 pole or 3 pole trip unit with ENVT option LV434104 09 2009 101 The Metering Function
73. ach phase and total reactive power is calculated Only the total reactive power can be calculated Qfund V 4l 4 Sino where i 1 2 3 phase Qfundtot Qfund Qfund Qfund Qfundtot Qfundw1 Qfundw2 Qfundw1 and Qfundw2 are the fictional reactive powers calculated by the 2 wattmeter method Distortion power is the quadratic difference between the reactive power with harmonics and the reactive power fundamental Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The distortion power for each phase and the total distortion power is calculated Only the total distortion power can be calculated where i 1 2 3 phase D Q2 Qtund Dtot D4 D4 D4 Dtot Dwi Dw2 Dw1 and Dw2 are the fictional powers calculated by the 2 wattmeter method Total Reactive Power With Harmonics The total reactive power with harmonics is not physically significant Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The total reactive power is calculated The total reactive power is calculated Qtot Qfundtot2 Dtot2 Qtot Qfundtot2 Dtot Total Apparent Power Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The total
74. act NSX circuit breaker the functional unit consists of A dedicated plate for installing the Compact NSX circuit breaker An escutcheon on the front face to avoid direct access to live parts Prefabricated links to the busbars e Devices for creating the connection on site and running the auxiliary wiring through The ULP system can be used to enhance the functional unit with a front display module FDM121 for a display of all the measurements and operating assistance data supplied by the Micrologic 5 or 6 trip units and or a Modbus communication interface module for a link to a Modbus network Thanks to the ULP system the functional unit becomes intelligent since it includes metering functions and or communication functions le D Functional unit Intelligent functional unit measurements and local display Functional unit intelligent measurements local display and communication 144 LV434104 09 2009 Operating Assistance Main Menu Presentation The Main menu offers 5 menus containing the information required for monitoring and using the ULP system intelligent functional units The description and content of the menus is set out for the Compact NSX circuit breakers Main menu comu X Metering in Control A Alarms Services ESC WY OK The 5 menus offered in the Main menu are as follows Menu Description ene Quick View menu The Quick View menu provides quic
75. adlock is unlocked for more information on unlocking the padlock see Navigation Principle page 18 NOTE The 2 additional protections on the Micrologic 6 E M trip unit Under load and Long start can only be set using the RSU software Presetting the Protection Parameters by a Dial When a protection parameter is preset by a dial the dial on the Micrologic trip unit and the virtual dial in the RSU software have to be in an identical position LV434104 09 2009 121 The RSU Parameter Setting Software Underload and Long Start Motor Protection Setting Micrologic 6 E M The figure below describes the Basic prot tab in the RSU software for the Micrologic 6 E M trip unit W Micrologic RSU C MicrologicWtility RSU_A Data New rsa Eile Remote functions Setup Live update Help Microlagic selection Trip unit Motod v Micrologic6 2EM 3P mf220 x EC Eo Pyn LV431521 E Service Basic prot IH Alarms Si Outputs Ef Breaker va Interface Under load H A k C Y isd lunzertunos ljam tam N VA 28 IC amp Lr xo 6 9 6 T a ir les isd _ ted _ iuba lim tami la tg 20A 5 3300A 11004 s 30 X OFF N 444 0000s in 15 xIn no Sr Ptoff non 0200n Ptoff 1 Padlock unlock button The table below illustrates the Underload and Long Start Motor protection setting Screen Action e Unlock the padlock Under load e Select the Under load window on the left of the s
76. alue is displayed N 1 A 2 B 3 C 3 Access the ground fault protection c test function by pressing OK li G ee Ee E e E The tESt pictogram appears and the SZ OK pictogram blinks 22 e N A 2 B 3 0 4 Prompt the ground fault protection c test by pressing OK ir trlsdatsdilillgatg The circuit breaker trips The ground fault protection trip screen is displayed N VA 2B 3IC 5 Acknowledge the ground fault trip c screen by pressing OK Ir tr lsdifscilillgatg The Reset OK pictogram blinks E 2 N EEE z 6 Confirm acknowledgment by c t isd tsd li xin pressing OK again The confirmation OK is displayed for 2s N 1A 2B 3C 22 LV434104 09 2009 Using Micrologic Trip Units Protection Parameter Readout A protection parameter is selected using the e key This selection is only possible in Readout mode i e when the padlock is locked e Scrolling is cyclical e The up arrow 1 indicates the selected protection parameter Example Ir pick up selected r tr sd tsd li xin 1 For the neutral protection parameters the up arrow is replaced by the down arrow which points to N Example of Protection Parameter Readout Readout of the setting values for the long time protection Ir pick up tr time delay and the short time protection Isd pick up Step Action Using Display 1 Select the Protection parameter co eee EDs readout mode main screen displayed The long time protection Ir p
77. amp amp e The Open Closed Trip status of the Compact NSX circuit breaker if the BSCM module Randy sonics 408 is present Open on the screen example opposite Ir 250A D 27A e The status of the LED indicators on the front of the trip unit ESC v r The long time protection Ir pick up setting e The current intensity of the most heavily loaded phase I2 217 A in the screen example opposite Screen 2 in the Quick View menu displays the currents OME s Phase 1 current I1 n 213A Phase 2 current I2 e Phase 3 current I3 2 219 e Neutral current IN I3 208A IN 2A ESC vw a Screen 3 in the Quick View menu displays the phase to phase voltages lt 7 MENE 3 7 e Phase 1 to phase 2 voltage V12 V12 406 V e Phase 2 to phase 3 voltage V23 V23 sgv Phase 3 to phase 1 voltage V31 v31 409 V ESC v a Screen 4 in the Quick View menu displays the phase to neutral voltages qa 47 Phase 1 to neutral voltage V1N VIN 235 V e Phase 2 to neutral voltage V2N V2N 232v Phase 3 to neutral voltage V3N V3N 227 V ESC v A 146 LV434104 09 2009 Operating Assistance Screen Description Screen 5 in the Quick View menu displays the powers a 5 7 e Active power Ptot in kW Ptot 127 KW e Reactive power Qtot in kvar e Apparent power Stot in kVA Qtot 13 kVAr Stot 129 kVA ESC v a Screen 6 in the Quick View menu displays
78. apparent power is calculated The total apparent power is calculated Stot 4Ptot Qtot2 Stot Ptot2 Qtot 84 LV434104 09 2009 The Metering Function Energy Metering Micrologic E Presentation The Micrologic E trip unit calculates the different types of energy by means of energy meters and provides the values of e The active energy Ep the active energy supplied EpOut and the active energy consumed Epln e The reactive energy Eq the reactive energy supplied EqOut and the reactive energy consumed EqIn e The apparent energy Es The energy values are indicated as an hourly consumption These values are updated once a second The energy values are stored in non volatile memory once an hour NOTE When there is a weak current through the circuit breaker 15 to 50 A depending on the rating it is necessary to power the Micrologic E with an external 24 VDC power supply to calculate the energies See Micrologic Trip Unit Power Supply page 17 Principle of Energy Calculation By definition e Energy is the integration of the instantaneous power over a period T E cst where G P Qor S T e The value of the instantaneous active power P and the reactive power Q can be positive power consumed or negative power supplied according to the operating quadrant see Power Sign and Operating Quadrant page 82 e The value of the apparent power S is always counted positively Partial Ener
79. arent power peak value Stot LV434104 09 2009 103 The Metering Function Micrologic E Energy Metering Energy Meters The accuracy range is indicated for Micrologic trip unit operation e Inthe current range 0 1 1 2 In e Inthe voltage range 70 850 V e Inthe cos range 1 0 5 and 0 5 1 Measurement Unit Measurement Accuracy Accuracy Range Range Active energy measurements Ep Epln kWh then 1 kWh 2 1 kWh 1000 TWh supplied and EpOut consumed MWh 1000 TWh Reactive energy measurements Eq Eqln kvarh then 1 kvarh gt 2 1 kvarh 1000 Tvarh supplied and EqOut consumed Mvarh 1000 Tvarh Apparent energy measurement Es kVAh then 1 kVAh gt 1000 2 1 kVAh 1000 TVAh MVAh TVAh 104 LV434104 09 2009 Alarms Aim This chapter describes the alarms for Micrologic 5 6 and 6 E M trip units What s in this Chapter This chapter contains the following topics Topic Page Alarms Associated with Measurements 106 Alarms on a Trip Failure and Maintenance Event 109 Detailed Tables of Alarms 110 Operation of SDx and SDTAM Module Outputs Assigned to Alarms 114 LV434104 09 2009 105 Alarms Alarms Associated with Measurements Presentation Alarm Setup Alarm Priority Level Micrologic 5 and 6 trip units are used to monitor measurements by means of e 1 or 2 pre alarms depen
80. armonic eo E 2 2 2 2 Vims 3 V eras d og Vorms V arms te 1 Acceptable Harmonic Levels The acceptable harmonic levels are stipulated by various standards and statutory regulations e Electromagnetic compatibility standard adapted to low voltage public networks IEC 61000 2 2 e Electromagnetic compatibility standards e For loads below 16 A IEC 61000 3 2 e Forloads higher than 16 A IEC 61000 3 4 e Recommendations from energy distribution companies applicable to the installations The results of international studies have revealed a consensus on the typical harmonic values that should ideally not be exceeded The table below lists the typical harmonic values for voltage as a of the fundamental Odd Harmonics That Are Not Odd Harmonics That Are Even Harmonics Multiples of 3 Multiples of 3 Order n Value as a V Order n Value as a V4 Order n Value as a V4 5 6 3 5 2 2 7 5 9 1 5 4 1 11 3 5 15 0 3 6 0 5 13 3 gt 15 0 2 8 0 5 17 2 10 0 5 gt 19 1 5 gt 10 0 2 NOTE Harmonics of a high order n gt 15 have very low rms values and can therefore be ignored 88 LV434104 09 2009 The Metering Function Metering Energy Quality Indicators Micrologic E Presentation Current THD The Micrologic E trip unit provides via the communication network the measurements and quality indicators required for energy management
81. arrow pointing to Isd breaking value displayed Ir tr isd tsd li xin N 1A 2B 3 C Peak breaking current li Tripped by instantaneous protection or reflex protection Up arrow pointing to li breaking value displayed Ir tr isd tsd li xin N 1A 2B 31C Tripped by integrated instantaneous protection Up arrow pointing Ir tr Isd tsd li xin to li triP displayed N WA 2 B 3 0 Micrologic 6 Ir tr Isd tsd li Ig tg Tripped by ground fault protection Up arrow pointing to lg triP displayed N WA 2 B 3 C Tripped by absence of ENCT option as the ENCT option was Ir tr isd tsd li xin declared during the protection parameter settings of the Micrologic trip unit It is then necessary to install the ENCT option or a bridge between the T1 and T2 terminals of the Micrologic trip unit to acknowledge the ENCT screen Acknowledgement is made by pressing the OK key twice validation and confirmation N WA 2 B 3 0 134 LV434104 09 2009 Operating Assistance Indication of Faults With Micrologic 6 E M For more information on definitions of the fault protections associated with indications see Protection for Motor Feeders page 55 Screen Cause Ir Cl 8 Isd lunbal tunbal Ijam tjam lg tg N 4A 2 B 3 C Tripped by long time protection Up arrow pointing to Ir triP displayed 1 Peak breaking current Isd Ir Cl 8 Isd lunbal tunbal Ijam tjam lg tg N VA 2 B 3 C
82. aximum values of apparent powers for each phase S1 MAX S2 MAX S3 MAX e Minimum values of apparent powers for each phase S1 MIN S2 MIN S3 MIN kVA 1000 kVA 1000 2 96 1000 1 kVA 1 1000 kVA Total apparent power measurement Stot e Maximum value of total apparent power Stot MAX e Minimum value of total apparent power Stot MIN kVA 3000 kVA 3000 2 96 3000 3 kVA 3 3000 kVA Only with 4 pole or 3 pole trip unit with ENVT option e Fundamental reactive power measurements for each phase Qfund1 Qfund2 Qfund3 1 e Maximum values of fundamental reactive powers for each phase Qfund1 MAX Qfund2 MAX Qfund3 MAX e Minimum values of fundamental reactive powers for each phase Qfund1 MIN Qfund2 MIN Qfund3 MIN kvar 1000 kvar 1000 2 96 1000 1 kvar 1 1000 kvar Total fundamental reactive power measurement Qfundtot e Maximum value of total fundamental reactive power Qfundtot MAX Minimum value of total fundamental reactive power Qfundtot MIN kvar 3000 kvar 3000 2 3000 3 kvar 3 3000 kvar Only with 4 pole or 3 pole trip unit with ENVT option e Distorting power measurements for each phase D1 D2 D3 1 e Maximum values of distorting powers for each phase D1 MAX D2 MAX D3 MAX Minimum values of distorting powers for each phase D1 MIN D2 MIN D3 MIN kvar 1000 kvar 1000 2 96 1000
83. be reset with the padlock locked or unlocked d Step Action Using Display 1 Select the Measurement readout co Ir tr dsd ted li xin and reset energy meter mode main screen displayed N UA 2 B 3C 2 Select the energy meter to be reset OOO E e EEIE N UA 2B 3C 3 Validate the reset c i The OK pictogram blinks Lr ero ee ee ey CE Eat uu 4 Confirm the reset m c aaa The confirmation OK is displayed for 2s N WA 2B 3C LV434104 09 2009 Using Micrologic Trip Units Peak Demand Values Reset The peak demand values can be reset with the padlock locked amp or unlocked m The confirmation OK is displayed for 2s Step Action Using Display 1 Select the Readout and reset peak co t isd tsd li xin demand values mode main screen N 1A 2B 3C 2 Select the peak demand to be reset DO w isd tsd li in N WA 2B 3C 3 Validate the reset The OK pictogram blinks o ee ee ep t oes 4 Confirm the reset c a isd tsd RTT N WA 2B 3C Ground Fault Protection Test Micrologic 6 The ground fault protection test can be performed with the padlock locked amp or unlocked m Step Action Using Display 1 Select the Instantaneous co See eee ee measurement readout mode the most heavily loaded phase is displayed N 1A 2 B 3C 2 Select the ground fault current c ESSE measurement the v
84. ble e The screensaver returns to the Out1 message If 2 alarms associated with 2 outputs in latching mode are active e The first alarm message Out1 or Out2 is displayed on the screen until the alarm is actually acknowledged the output s active position is acknowledged after the alarm is deactivated e After acknowledgment of the first alarm the screen displays the second alarm message Out2 or Out1 until the second alarm is actually acknowledged e After both acknowledgments the display returns to the screensaver Assignment of the SDTAM Module Outputs Output 1 SD2 OUT1 normally open is assigned to indicating thermal faults Output 2 SD4 OUT2 normally closed is used to open the contactor They are activated 400 ms before the circuit breaker trips in the case of e Long time protection e Phase unbalance protection e Jam motor protection Micrologic 6 E M e Underload protection Micrologic 6 E M LV434104 09 2009 115 Alarms 116 LV434104 09 2009 The RSU Parameter Setting Software Aim This chapter describes the protection parameter settings and setting the metering and alarm parameters using the RSU software What s in this Chapter This chapter contains the following topics Topic Page Parameter Setting Using the RSU Software 118 Protection parameter setting 121 Metering Setup 123 Alarm Setup 125 Setting the SDx Module Output Parameters 127 LV434104 09 2009
85. c mean of the 3 phase currents lavg 1112 13 3 Average voltages e phase to phase Vavg the arithmetic mean of the 3 phase to phase voltages Vavg V12 V23 V31 3 e Phase to neutral Vavg the arithmetic mean of the 3 phase to neutral voltages Micrologic 4 pole or 3 pole trip unit equipped with the ENVT option Vavg VIN V2N V3N 3 LV434104 09 2009 75 The Metering Function Measuring the Current and Voltage Phase Unbalances Micrologic trip units calculate the current unbalance for each phase 3 values The current unbalance is expressed as a compared to the average current 11 12 13 avg 3 Ik unbalance wee ETN E es e er y Be J y M lavg 12 lavg I3 lavg 0 20 0 n 12 13 lavg x 100 where k 1 2 3 Micrologic trip units calculate the e Phase to phase voltage unbalance for each phase 3 values e Phase to neutral if present voltage unbalance for each phase 3 values The voltage unbalance is expressed as a compared to the average value of the electrical quantity Vavg _ Vjk Vavg Vavg oe Sse eee ee m DTE TN ETUR PNIS pues a e eY TE ar et 3 U12 Vavg U23 Vavg U31 Vavg 20 0 0 U12 U23 U31 Vavg Vjk unbalance 96 x 100 where jk 12 23 31 NOTE The unbalance values are signed relative values expressed as a The maximum minimum unbalance values are absolute values expressed as a 96 Maximum Minimum Values The Micrologic A
86. cates the actual parameter setting value 9 2 Pressthe microswitch again the display reverts to Setting mode on the parameter currently being set 26 LV434104 09 2009 Using Micrologic Trip Units Example of Verification of a Protection Parameter Setting Value The table below illustrates as an example the verification of the setting value for the short time protection Isd pick up on a Micrologic 5 2 trip unit currently being set Step Action Using Display 1 The display is in Setting mode on the Isd parameter e The m pictogram is displayed e The Isd pick up setting is expressed in multiples of Ir Ir tr isd tsd li xln N 1A 2 B 3IC Lock the setting e The display switches to Setting readout mode on the Isd parameter the amp pictogram is displayed e The Isd pick up setting is expressed as a value 715 A in the example mo Ir tr isd tsd li xln N WA 2B 3C Unlock the setting e The display reverts to Setting mode on the Isd parameter e The m pictogram is displayed Po Ir tr isd tsd li xln N WA 2B 3 0 gt LV434104 09 2009 27 Using Micrologic Trip Units List of Metering Screens Micrologic A Ammeter Mode Description of Screens Unit Down Arrows Readout as instantaneous rms value of the A The down arrow indicates e 3 phase currents 11 A 12 B and I3 C the conductor phase neutral o
87. creen H Dg ii e 2 dropdown lists can be used to set the underload protection I Select the pick up value from the dropdown list marked xlr 10 s Select the time delay from the dropdown list marked s e Unlock the padlock Long start Select the Long start window on the left of the screen e 2 dropdown lists can be used to set the long start motor protection 8 sir Select the pick up value from the dropdown list marked xlr Kx 10 e Select the time delay from the dropdown list marked s 122 LV434104 09 2009 The RSU Parameter Setting Software Metering Setup Presentation The metering setup and selection of calculation modes can be accessed using the RSU software under the Service tab DA Micrologic RSU C WicrologicMJHITyARSLU AWataWew rsa pe Remetefunvers getup Qveupdse Hee Madog selection Trout Dunan Menige D info sc go Glectric pmwLvanxe Service I Basic pect ER Aims TIE aces I Bssoket 10 GR irartace Nominasi velkage Cunert demand Power demand Window hype __ Window yos S ng skiro l Interval imn Irterva imm fig fis l Loend Neunal Irag acc mode Voltage Top 17 awe v Reg 334 51 ENVT Option Setup 3 Pole Device The table below illustrates the ENVT option parameter settings in the Services tab Screen Action Check the declaration box for the ENVT option in the Metering setup External N
88. ct Click on OK the alarm is activated in the dropdown list of assignments with the default parameters e The default parameter setting needs to be modified Set the alarm parameters Alarm Setup Screen Alarm setup screen Alarms setup Selected alarm None 1 i Over I MAX 1 2 3 gt 2 56 Priority Medium v 5 3 ick up Drop eut 4 4 value a 250 HH value ay 250 EE delay s 60 44 delay s 15 pps x Alarm name Alarm code Activation parameters pick up and time delay Deactivation parameters drop out and time delay Priority Level ORON LV434104 09 2009 125 The RSU Parameter Setting Software Setting an Alarm s Parameters Modifying an Alarm Deleting an Alarm In the Alarm setup screen Step Action 1 Set the priority level in the Priority window using the scroll bar 4 options 2 Set the pick up threshold value and time delay if present in the Pick up value and Pick up delay windows using the scroll bars 3 Set the drop out threshold value and time delay if present in the Drop out value and Drop out delay windows using the scroll bars 4 Confirm the parameter setting by clicking OK the alarm is activated in the dropdown list of assignments with its priority level and the values of its activation and deactivation parameters For parameters with a wide setting range there are two scroll bars e Left hand
89. ctive startup Green Active steady state N Diagram I The average motor current lavg does not fall back below the protection ljam pick up before the end of the tjam time delay jammed motor Jam motor protection trips e A Protection activated change to steady state e B Activation of protection time delay as soon as the pick up threshold is crossed e C Protection tripped at the end of the time delay Diagram II The average motor current lavg falls back and stays below the protection ljam pick up before the end of the tjam time delay occasional overload Jam motor protection does not trip e B Activation of protection time delay as soon as the pick up threshold is crossed e D Protection disabled NOTE The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option page 57 Setting the Protection The ljam pick up and the tjam time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software ljam Pick Up Setting Value The ljam pick up setting value is expressed in multiples of Ir The pick up setting range on the keypad is 1 8 Ir The step is 0 1 Ir The default setting value is OFF protection not active The accuracy range is 10 68 LV434104 09 2009 The Protection Function tjam Time Delay Setting Value The tjam time delay setting value is expressed in seconds Th
90. d Setting Value 0 5 1 2 4 8 16 tr Trip Time Delay s 1 5 Ir 15 25 50 100 200 400 6 Ir 0 5 1 2 4 8 16 7 2 lr 0 35 0 7 1 4 2 8 5 5 11 The accuracy range is 20 0 The model representing the conductor heat rise is constructed according to the calculation of a thermal image It allows the thermal state of the conductors to be monitored precisely Example Comparison of the heat rise calculation without thermal image diagram A and with thermal image diagram B A 0 B 0 ra 12 om 0 Instantaneous current cyclical in the load 1 Conductor temperature 2 Current calculated without thermal image diagram A with thermal image diagram B 3 Long time protection pick up Ir e Trip unit without thermal image On each current pulse the trip unit only takes account of the thermal effect on the pulse under consideration No tripping occurs despite the build up in conductor heat rise Trip unit with thermal image The trip unit adds together the thermal effect of successive current pulses Tripping intervenes to take account of the actual thermal state of the conductor LV434104 09 2009 41 42 The Protection Function Conductor Heat Rise and Tripping Curves Thermal Memory Analysis of the equation of heat rise in a conductor through which a current runs can be used to determine the nature of physical phenomena e For low or
91. d to a ULP module it can be connected directly to an external 24 V DC power supply with the help of the optional 24 VDC supply terminal block reference LV434210 LV434104 09 2009 17 Using Micrologic Trip Units Navigation Principle Locking Unlocking the Protection Parameter Settings Mode Definition Mode Selection The protection parameter settings are locked when the transparent cover is closed and sealed to prevent access to the adjustment dials and the locking unlocking microswitch A pictogram on the display indicates whether the protection parameter settings are locked e Padlock locked The protection parameter settings are locked e Padlock unlocked The protection parameter settings are unlocked To unlock the protection parameter settings 1 Open the transparent cover 2 Press the locking unlocking microswitch or turn one of the adjustment dials To lock the protection parameter settings press the unlocking microswitch again The protection parameter settings also lock automatically 5 minutes after pressing a key on the keypad or turning one of the dials on the Micrologic trip unit The information that can be accessed on the Micrologic display is split between different modes The modes that can be accessed depend on e Whether the protection parameter settings are locked e The Micrologic trip unit version 3 pole or 4 pole A mode is defined by a combination of 5 pictograms The tables below s
92. dates relating to important information such as previous protection settings and minimum maximum current voltage and network frequency values The table of time stamped information describes e The previous protection configuration parameters and corresponding dates e The minimum and maximum voltage measurement values and corresponding dates e The maximum current measurement values and corresponding dates e The minimum and maximum network frequencies and corresponding dates The time when the minimum and maximum values were reset is also available 152 LV434104 09 2009 Operating Assistance Maintenance Indicators BSCM Module Counters The counters embedded in the BSCM module generate information relating to the number of volt free contact operations These volt free contacts qualify The number of open close operations OF contact and open on a fault operations SD and SDE contacts on the Compact NSX circuit breaker The number of close open and reset operations on the motor mechanism Micrologic Trip Unit Counters The maintenance counters embedded in the Micrologic trip unit can be accessed by the communication option Counters are assigned to each type of protection e Long time protection Short time protection Instantaneous protection Ground fault protection Jam motor protection Phase unbalance protection Long start motor protection e Underload motor protection 10 counters are assigned to the alarms associa
93. dicator Electrical Distribution Monitored According to IEEE Convention The example below describes monitoring of the energy quality by the cos indicator The table below gives the history of the cos values of the load of a workshop downstream of a Compact NSX according to IEEE convention Time Evolution of the Load IEEE Convention Cos o cos MIN cos o MAX t1 2 8h 00 min Power startup 0 4 0 4 0 4 t2 8 h01 min Compensation system startup 0 9 0 4 0 9 t3 9 h 20 min Power stops 0 3 0 4 0 3 t4 2 9 h 21 min Compensation system stops 0 95 0 4 0 3 Interpreting the Cos o MIN MAX and the Cos Values According to IEEE Convention The cos MIN and cos o MAX values indicate the cos variation range for the load this gives the user information on how the equipment is performing from a cost point of view and allows him to install compensation devices if necessary The cos MIN and cos qo MAX values can be accessed on the front display module FDM121 The load cos q values indicate in real time any correction actions e The absolute value of too low a negative cos 0 4 indicates that capacitors need to be installed to increase the value of the equipment cos q e The value of too low a positive cos 0 3 indicates that capacitors need to be removed to increase the value of the equipment cos q The 2 alarms on the cos according to IEEE convention integrated i
94. ding on the type of trip unit assigned to e Long time protection PAL Ir for the Micrologic 5 trip unit e Long time protection PAL Ir and ground fault protection PAL Ig for the Micrologic 6 trip unit By default these alarms are active e 10 alarms defined by the user as required The user can assign each of these alarms to a measurement By default these alarms are not active All the alarms associated with measurements can be accessed e Via the communication network e On the front display module FDM121 The alarms associated with measurements can be assigned to an SDx module output see Setting the SDx Module Output Parameters page 127 User defined alarms can be selected and their parameters set using the RSU software under the Alarms tab see Alarm Setup page 125 The alarm setup consists of e Selecting the alarm priority level e Setting the alarm activation thresholds and time delays The alarm description tables indicate for each of the alarms e The parameter setting range thresholds and time delays e The default setting values See Detailed Tables of Alarms page 110 Each alarm is given a priority level e High priority e Medium priority e Low priority e No priority Alarm indication on the front display module FDM121 depends on the alarm priority level The priority level of each alarm can be set by the user according to the urgency of the action to be taken By default alarms are medium priority exc
95. e functions for the Compact NSX circuit breaker 9 8 B 5 4 Micrologic 5 or 6 trip unit Front display module FDM121 Modbus communication interface module ULP cord NSX cord Modbus network 24 VDC auxiliary power supply Communication gateway EGX or MPS100 Ethernet network OANOO BRAWN The ULP system can be used to enhance the Compact NSX circuit breaker functions by e Local display of measurements and operating assistance data with the front display module FDM121 e A Modbus communication link for access and remote monitoring with the Modbus communication interface module e Test setup and maintenance functions with the maintenance module and the LTU and RSU software LV434104 09 2009 143 Operating Assistance Thanks to the ULP system the Compact NSX circuit breaker becomes a metering and supervision tool to assist energy efficiency and can be used to e Optimize energy consumption by zone or by application according to the load peaks or priority zones e Manage the electrical equipment better For more information on the ULP system and the FDM121 display module refer to the ULP system User manual Intelligent Functional Unit A functional unit is a mechanical and electrical assembly containing one or more products to perform a function in a switchboard incoming protection motor command and control The functional units are modular and are easily installed in the switchboard Built around each Comp
96. e step is 1 The default pick up setting value is 3096 The accuracy range is 10 tunbal Time Delay Setting Value The tunbal time delay setting value is expressed in seconds The tunbal time delay setting depends on the operating conditions e During startup the value of the time delay cannot be adjusted and equals 0 7 s e In steady state the setting range is 1 10 s The step is 1 s The default time delay setting value is 4 s LV434104 09 2009 67 The Protection Function Jam Motor Protection Presentation Description Operating Principle Jam motor protection provides additional protection in order to e Detect overtorque e Monitor mechanical failure e Detect malfunctions more quickly on machines for which the motor is oversized Examples of machines with a significant risk of jamming conveyors crushers and kneaders fans pumps and compressors etc Jam motor protection compares the value of the average motor current lavg with the setting value of the protection ljam pick up If the average motor current lavg exceeds the ljam pick up the protection tjam time delay is actuated By default jam motor protection is not active After parameter setting jam motor protection is e Active in steady state e Disabled during startup The figures below illustrate the operating possibilities Diagram I E Diagram II ljam UNS i 1 Motor current Monitoring by jam motor protection White Not a
97. e tjam time delay setting range is 1 30 s The step is 1 s The default setting value for the time delay is 5 s LV434104 09 2009 69 The Protection Function Underload Motor Protection Presentation Underload motor protection provides additional protection for detection of motor no load operation Examples of no load operation pump running dry broken drive belt broken geared motor etc Description Underload motor protection compares the value of the phase current minimum MIN with the setting value of the protection lund pick up If the current value MIN falls below the lund pick up the protection tund time delay is actuated By default underload motor protection is not active After parameter setting underload protection is activated during startup and in steady state Operating Principle The figures below illustrate the operating possibilities l Diagram I l Diagram H Motor current Supervision by underload motor protection White Not active Green Active e Diagram I The phase current minimum value MIN does not go above the protection lund pick up before the end of the tund time delay for example a pump operating at no load Underload motor protection trips e A Protection activated change to steady state e B Activation of protection time delay as soon as the pick up threshold is crossed e C Protection tripped at the end of the time delay e Diagram II The phase current minimum value MIN goes bac
98. eaker Q2 e Ifthe upstream circuit breaker is in position t OFF the downstream circuit breakers must not be in position It ON Discrimination Limit Depending on the staging of circuit breaker ratings and protection parameter settings discrimination can be e Limited partial discrimination up to a value Is of the short circuit current e Total total discrimination performed irrespective of the value of the short circuit current Discrimination Table Schneider Electric provides discrimination tables showing the type of discrimination partial or total between each circuit breaker for its entire range of circuit breakers see the Compact NSX 100 630 A Catalogue These coordinations are tested in accordance with the recommendations of standard IEC 60947 2 38 LV434104 09 2009 The Protection Function Protection Functions The figure and table below define the protection functions for Micrologic 5 and 6 Each function is reviewed in detail on the following pages 10012503 0 t 00 250A 2 FECKCEEC EMT ES 3 o sO 9 425 200i 110 225 1400 250 Ir tr Isd_ tsd li xin gt ay 2 2 E i A iLO eo o oc l 6 l l l gt No Parameter Description Micrologic 5 6 0 In Trip unit setting range Minimum setting maximum setting trip n m unit In rating 1 Ir Long time protection
99. egatively the energy consumed is valued positively The default parameter setting for the energy accumulation mode is absolute energy mode LV434104 09 2009 The RSU Parameter Setting Software Alarm Setup Presentation Alarm selection and setup can be accessed using the RSU software under the n Alarms tab i Micrologic RSU C MicrologicWUtility RSU_A Data New rsa Eile Remote functions Setup Live update Help Micrologic selection Distibution Micrologic2E gt 3P v mf250 EC gt M en P N LV431506 B Service P Basic prot HB Alarms IE Outputs EF Breaker 1 0 EB Interface Alarm designation Nbr Code Priy Pu val nit Pu dly Do val Do dy Relay 1 Pre Alarm IrfPAL Ir 1013 M 30 0 1 850 d 1 3 Pre Alarm Ig PAL Ig 1014 M 30 0 1 85 0 1 None None None None 2 None None None None None None 1 Alarms already activated and set up 2 List of possible alarm assignments 3 Alarm parameters Activating an Alarm Step Action Select none for a free assignment for example the first available line Double click on none the Alarm setup selection and setting screen appears see below Select the alarm to be activated from the dropdown list in the Alarm setup screen AJOJN Once the alarm has been selected there are 2 possible options e The default parameter setting is corre
100. ept for alarms associated with operating indicators which are low priority see Detailed Tables of Alarms page 110 Alarm Activation Conditions The activation of an alarm associated with a measurement is determined directly by e Positive crossing of the associated measurement pick up threshold superiority condition e Negative crossing of the associated measurement pick up threshold inferiority condition e Equality with the associated measurement pick up threshold equality condition The type of monitoring is predetermined by the RSU software 106 LV434104 09 2009 Alarms Alarm on Superiority Condition Activation of the alarm on a superiority condition is determined using 2 thresholds and 2 time delays The figure below illustrates activation of an alarm on a superiority condition A SA Pick up threshold TA Pick up time delay SD Drop out threshold TD Drop out time delay 1 Alarm pick up zone in green Alarm on Inferiority Condition Activation of the alarm on an inferiority condition is determined according to the same principle The figure below illustrates activation of an alarm on an inferiority condition A SA Pick up threshold TA Pick up time delay SD Drop out threshold TD Drop out time delay 1 Alarm pick up zone in green LV434104 09 2009 107 Alarms Alarm on Equality Condition The alarm is activated when the associated monitored quantity equa
101. es of the neutral long time protection and neutral short time protection pick ups IN Ir Parameter Long Time Pick Up Value Ir IN Short Time Pick Up Value Isd IN OFF N A N A 0 5 1 Ir 2 Isd 2 1 Ir Isd OSN 3 pole ENCT 1 6 x Ir 1 6 x Isd 4 pole 1 6 x Ir limited to In 1 6 x Isd limited to In x Isd Ir 1 For the 40 A rating the IN Ir 0 5 parameter setting is not available The setting values of the neutral long time and short time protection time delays are identical to those for the phases The table below details the setting values of the neutral protection pick ups set to OSN according to the phase protection pick up Ir setting and the In rating of the 4 pole trip unit Ir In Values Long Time Pick Up Value Ir IN Short Time Pick Up Value Isd IN Ir In 0 63 1 6x Ir 1 6 x Isd 0 63 Ir In 1 In In xIsd Ir Selection of the ENCT option The ENCT option is an external neutral CT for a 3 pole trip unit The table below indicates the reference for the ENCT option to be installed according to the In rating of the Micrologic trip unit and or the need for OSN protection In Rating Neutral Protection Limited to In OSN gt In neutral protection 40A LV429521 LV429521 100 LV429521 LV429521 160 LV430563 LV430563 250 LV430563 LV432575 400 LV432575 LV432575 630 LV432575 No 1 1 For the
102. ess one of the 2 3am keys Validation and Confirmation of a Protection Parameter Setting The value of a protection parameter set on the keypad must be 1 Validated by pressing the gt key once the OK pictogram blinks on the display 2 then confirmed by pressing the 2 key again the text OK is displayed for 2 s NOTE Setting using a dial does not require any validation confirmation action 24 LV434104 09 2009 Using Micrologic Trip Units Example of Presetting a Protection Parameter Using a Dial The table below illustrates presetting and setting the long time protection Ir pick up on a Micrologic trip unit 5 2 rated 250 A Step Action Using Display 1 Set the Ir dial to the maximum value ete ee WLI the padlock unlocks automatically The down arrows indicate all 3 phases the setting is identical on each phase N WA 2 B 3C 2 Turn the Ir dial to the setting above t lsd eC E ERES N 1A 2B 3C 3 Presetting is complete e Ifthe pick up setting value is correct exit the setting procedure no validation is required The long time protection Ir pick up is set at 175 A e Ifthe pick up setting value is not suitable fine tune it on the keypad 4 Set the exact value requested for Ir rw A tr dsd tsd li xin BESTE N WA 2B 3C 5 Validate the setting the OK c Ir tr dsd tsd li xin pictogram blinks F y JA PAR Em 6 Confirm the setting the confirmation c SS TETTE OK
103. eutral Current demand Voltage Tap window Window type The content of Modbus 3314 register is described in the Modbus Compact NSX User manual Slidding Interval min 15 External Neutral Voltage Tap T Reg 3314 31 NOTE The ENCT option parameter can be set directly on the Micrologic trip unit screen and or using the RSU software under the Basic prot tab Power Setup The table below illustrates the choice of power sign in the Services tab Screen Action In the Metering setup Power sign window select the power sign MAE setup e The power running through the circuit breaker from top to bottom is counted positively peu e The power running through the circuit breaker from top to bottom is counted negatively Y The default value of the power sign is Total active Power no kw Power factor convention IEEE M LV434104 09 2009 123 The RSU Parameter Setting Software Demand Values Setup The table below illustrates the parameter settings for the demand values calculation windows in the Services tab Screen Action Power demand Window type sliding Interval min 15 Energy acc mode absolute 2 dropdown lists can be used to set the parameters for calculating the power demand value in the Power demand window e Select the type of calculation window in the Window type dropdown list fixed window sliding window synchronized window e
104. ewer disturbances for measuring devices located near electrical circuits Economy by means of cascading Cascading is a technique directly derived from current limiting Circuit breakers with breaking capacities less than the prospective short circuit current may be installed downstream of a limiting circuit breaker The breaking capacity is reinforced by the limiting capacity of the upstream device It follows that substantial savings can be made on downstream equipment and enclosures Current and energy limiting curves The limiting capacity of a circuit breaker is expressed by two curves which are a function of the prospective short circuit current the current which would flow if no protection devices were installed m the actual peak current limited current m thermal stress A s i e the energy dissipated by the short circuit in a conductor with a resistance of 1 O Example What is the real value of a 150 kA rms prospective short circuit i e 330 kA peak limited by an NSX250L upstream The answer is 30 kA peak curve page E 14 Maximum permissible cable stresses The table below indicates the maximum permissible thermal stresses for cables depending on their insulation conductor Cu or Al and their cross sectional area CSA CSA values are given in mm and thermal stresses in A s CSA 1 5 mm 2 5 mm 4 mm 6 mm 10 mm PVC Cu 2 97x104 8 26x10 2 12x105 4 76x105 1 32x105 Al 5 41x10 PRC Cu 4 10x10 1 39x105 2 92x
105. falls below the l ong pick up before the end of the tlong time delay correct starting Long start motor protection does not trip e A Activation of protection time delay 1096 of Ir pick up is exceeded e D Deactivation of protection LV434104 09 2009 71 The Protection Function Operating Principle No Load Starting On starting the average motor current lavg does not exceed the long start motor protection llong pick up The protection remains active as long as the value of the average current lavg has not fallen below 10 of the Ir setting value I Diagram III llong 10 Ir 1 Motor current 2 Activation of long start motor protection time delay White Protection not active Green Protection active Diagram III The motor current has not fallen below 10 of the Ir setting value before the end of the tlong time delay long start motor protection trips e A Activation of protection time delay 10 of Ir pick up is exceeded e B Protection tripped at the end of the time delay If the motor current falls back below 10 of the Ir setting value before the end of the protection tlong time delay for example on contactor opening long start motor protection does not trip NOTE The Micrologic trip unit measurement electronics filters the subtransient state first current peak of approximately 20 ms on contactor closing This current peak is not therefore taken into account when assessing whether the l ong pick up has been
106. g Function Micrologic A Real Time Measurements Current Metering Measurement Unit Measurement Range Accuracy Accuracy Range Phase 11 I2 I3 and neutral IN current measurements 1 Maximum current values of phases 1 MAX I2 MAX I3 MAX and the neutral IN MAX 1 Maximum value MAXMAX of the MAX of the phase currents Minimum current values of phases I1 MIN I2 MIN I3 MIN and neutral IN MIN 1 Minimum value MINMIN of the MIN of the phase currents Average current lavg measurements Maximum average current value lavg MAX Minimum average current value lavg MIN 0 20 In 1 0 2 1 2 In Micrologic 6 Ground fault current measurement Maximum minimum value of the ground fault current lg 0 600 1 IN with 4 pole or 3 pole trip unit with ENCT option LV434104 09 2009 97 The Metering Function Micrologic E Real Time Measurements Current Metering Measurement Unit Measurement Range Accuracy Accuracy Range Phase l1 12 I3 and neutral IN current measurements 1 e Maximum current values of phases l1 MAX I2 MAX I3 MAX and the neutral IN MAX 1 e Maximum value MAXMAX of the MAX of the phase currents Minimum current values of phases I1 MIN I2 MIN I3 MIN and neutral IN MIN 1 Minimum value MINMIN of the MIN of the phase currents Average current lavg measurements Maximum average current value lavg MAX
107. g to the sequence described below Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The active power for each phase and total active power is calculated Only the total active power can be calculated 15 Pi 1 void 2 Vinlin oi lin T z where i 1 2 3 phase Ptot P P P3 Ptot Pw1 Pw2 Pw1 and Pw2 are the fictional active powers calculated by the 2 wattmeter method Apparent Powers for Each Phase Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The apparent power is calculated for each phase Sp V I where i 1 2 3 phase LV434104 09 2009 83 The Metering Function Reactive Powers With Harmonics for Each Phase Reactive power with harmonics is not physically significant Reactive Powers Distortion Power Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The reactive power with harmonics is calculated for each phase Qr ls P where i 1 2 3 phase The reactive power of the fundamental corresponds to the physical reactive power Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The reactive power for e
108. gy Meters Energy Meters For each type of energy active or reactive a partial energy consumed meter and a partial energy supplied meter calculate the accumulated energy by incrementing once a second e The contribution of the instantaneous power consumed for the energy consumed meter E t In consumed gt Gin u Gin 3600 where Gin Ptot or Qtot consumed t 1 e The contribution as an absolute value of the power supplied for the energy supplied meter power supplied is always counted negatively E t Out supplied P3 Gout u Gout 3600 where Gout Ptot or Qtot supplied t 1 The calculation is initialized by the last Reset action see Resetting Energy Meters page 86 From the partial energy meters and for each type of energy active or reactive an energy meter provides either of the following measurements once a second e The absolute energy by adding the consumed and supplied energies together the energy accumulation mode is absolute E t absolute E t n E t Out e The signed energy by differentiating between consumed and supplied energies the energy accumulation mode is signed E t signed E t In E t Out The apparent energy Es is always counted positively Selecting Energy Calculation The calculation selection is determined by the information sought e The absolute value of the energy that has crossed the poles of a circuit breaker or the cables of an item of electrical equipment is a relevant para
109. hase Unbalance Protection Presentation Description Unbalances of the motor phase currents lead to significant heat rise and braking torques that can cause premature deterioration of the motor These effects are amplified during startup protection must be almost immediate Phase unbalance protection e calculates the current unbalance for each phase compared to the average current expressed as a 11 12 13 avg 3 ed 100 where k 1 2 3 Ik unbalance 96 l lay e Compares the value of the maximum current unbalance with the lunbal protection pick up The diagram below shows a maximum positive unbalance on phase 2 l1 lavg I2 lavg 13 lavg 0 20 0 I1 12 I3 lavg If the maximum current unbalance value is higher than the phase unbalance protection lunbal pick up the tunbal time delay is actuated Phase unbalance protection cannot be deactivated Phase unbalance protection is activated during startup and in steady state 66 LV434104 09 2009 The Protection Function Operating Principle The figures below illustrate the operating possibilities l Diagram I l Diagram II l Diagram III oe 1M rd 4D lunbal4 EM 1 pus ji 1 tunbal gt t A B D 4 2B 1M Motor current 1D Maximum unbalance of the motor phase currents 2A Monitoring by phase unbalance protection during startup diagram 2B Monitoring by phase unbalance protection in s
110. he Micrologic range and the thermal magnetic trip units on Compact NSX circuit breakers are described in the Compact NSX circuit breakers User manual Title of Documentation Reference Number Compact NSX circuit breakers User manual LV434100 Modbus Compact NSX User manual LV434106 ULP system User manual TRV99100 Compact NSX Catalogue from 100 to 630 A LVPED208001FR You can download these technical publications and other technical information from our website at www schneider electric com We welcome your comments about this document You can reach us by e mail at techcomm schneider electric com LV434104 09 2009 LV434104 09 2009 Using Micrologic Trip Units Aim This chapter describes the navigation principles for Micrologic 5 6 and 6 E M trip units What s in this Chapter This chapter contains the following topics Topic Page The Micrologic Range of Trip Units 10 Description of the Micrologic 5 and 6 Trip Units 15 Navigation Principle 18 Readout Mode 20 Setting Mode 24 List of Metering Screens 28 List of the Protection Parameter Screens 29 LV434104 09 2009 Using Micrologic Trip Units The Micrologic Range of Trip Units Presentation Micrologic trip units are used on the Compact NSX range of circuit breakers The range of Micrologic trip units consists of 2 families of electronic trip unit e Micrologic 1 and 2 trip unit
111. he quality indicator MAX and MIN indicate both critical situations According to the IEC convention critical situations in receiver mode on a capacitive or inductive load are detected but not discriminated one value The table below indicates the direction in which the indicators vary and their value in receiver mode IEC Convention Operating quadrant Q1 Q4 Direction in which the cos q or PFs vary over the operating range DOT SRL _ MAX MIN MIN MAX Value of the cos or PFs over the operating range 0 0 3 0 8 1 1 0 8 0 4 0 The quality indicator MAX indicates both critical situations LV434104 09 2009 93 The Metering Function Selecting the sign convention for the cos and power factor PF The sign convention for the cos and and PF indicators is configured in the RSU software see Metering Setup page 123 The IEEE convention is applied by default NOTE The sign convention selection also determines the alarm selection monitoring of an alarm indicator supposed to be IEC or IEEE convention will be incorrect if the IEEE or IEC convention has been configured 94 LV434104 09 2009 The Metering Function 3 2 Measurement Accuracy Tables Aim This section presents the measurement accuracy tables for Micrologic A Ammeter and Micrologic E Energy trip units What s in this Section This section contains the following topics
112. he threshold The alarm drop out time delay counter trips when the voltage drops back below the 420 V threshold 108 LV434104 09 2009 Alarms Alarms on a Trip Failure and Maintenance Event Presentation Alarms on a trip failure and maintenance event are always active They can be accessed e Via the communication network e On the front display module FDM121 Certain alarms can be assigned to an SDx module output see Setting the SDx Module Output Parameters page 127 Alarm Setup The parameters of alarms on a trip and failure event are fixed and cannot be modified The parameters of the 2 maintenance alarms OF operation counter threshold and Close command counter threshold can be modified using the RSU software under the Breaker I Ol tab Alarm Priority Level Each alarm is given a priority level e High priority e Medium priority LV434104 09 2009 109 Alarms Detailed Tables of Alarms Pre Alarms By default these alarms are active and are medium priority Label Code Setting Range Default Setting Thresholds Time Thresholds Time Delay Pick Up or Delay Pick Up Drop Out Pick Up Drop Drop Out Out Pre Alarm Ir PAL Ir 1013 40 100 Ir 1s 90 Ir 85 Ir 1s 1s Pre Alarm Ig PAL lg 1014 40 100 Ig 1s 90 lg 85 Ig 1s 1s Micrologic 6 trip unit User Defined Alarms Micrologic A By default user defined alarms are not active and are medium prio
113. how all the possible modes Pictograms Mode Accessible With Padlock Locked amp g DP e Instantaneous measurement readout e Kilowatt hour meter readout and reset IP Peak demand readout and reset Max Reset Ok eoi Protection parameter readout ve Neutral declaration readout 3 pole Micrologic trip unit Pictograms Mode Accessible With Padlock Unlocked a e Instantaneous measurement readout xo wf e Kilowatt hour meter readout and reset E Peak demand readout and reset Max Reset Ok Protection parameter setting OA d Neutral declaration setting 3 pole Micrologic trip unit pr tg A mode is selected by successive presses on the c button e The modes scroll cyclically e The unlocking locking microswitch is pressed to switch from a readout mode to a setting mode and vice versa 18 LV434104 09 2009 Using Micrologic Trip Units Screensaver The Micrologic display automatically reverts to a screensaver e In padlock locked mode 20 seconds after the last action on the keypad e In padlock unlocked mode 5 minutes after the last action on the keypad or dials The screensaver displays the current intensity of the most heavily loaded phase Instantaneous measurement readout mode LV434104 09 2009 19 Using Micrologic Trip Units Readout Mode Measurement Readout A measurement is read using the gt and keys e The gt keys are used to
114. ially hazardous situation which if not avoided can result in death or serious injury This is the safety alert symbol It is used to alert you to potential A CAUTION CAUTION indicates a potentially hazardous situation which if not avoided can result in minor or moderate injury CAUTION CAUTION used without the safety alert symbol indicates a potentially hazardous situation which if not avoided can result in equipment damage Electrical equipment should be installed operated serviced and maintained only by qualified personnel No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material A qualified person is one who has skills and knowledge related to the construction and operation of electrical equipment and the installation and has received safety training to recognize and avoid the hazards involved LV434104 09 2009 LV434104 09 2009 About the Book a q a At a Glance Document Scope Validity Note Related Documents User Comments The aim of this manual is to provide users installers and maintenance personnel with the technical information needed to operate the Micrologic trip units in Compact NSX circuit breakers This document is applicable to the trip units e Micrologic 5 2 A 5 3 A 5 2 E and 5 3 E e Micrologic 6 2 A 6 3 A 6 2 E and 6 3 E e Micrologic 6 2 E M and 6 3 E M The other trip units in t
115. icated for a Micrologic trip unit operation e Inthe current range 0 1 1 2 In e Inthe voltage range 70 850 V e Inthe cos range 1 0 5 and 0 5 1 Measurement Unit Measurement Range Accuracy Accuracy Range Only with 4 pole or 3 pole trip unit with ENVT option Active power measurements for each phase P1 P2 P3 e Maximum values of active powers for each phase P1 MAX P2 MAX P3 MAX e Minimum values of active powers for each phase P1 MIN P2 MIN P3 MIN kW 1000 1000 kW 2 96 1000 1 kW 1 1000 kW Total active power measurement Ptot e Maximum value of total active power Ptot MAX e Minimum value of total active power Ptot MIN kW 3000 kW 3000 2 96 3000 3 kW 3 3000 kW Only with 4 pole or 3 pole trip unit with ENVT option e Reactive power measurements for each phase Q1 Q2 Q3 e Maximum values of reactive powers for each phase Q1 MAX Q2 MAX Q3 MAX e Minimum values of reactive powers for each phase Q1 MIN Q2 MIN Q3 MIN kvar 1000 kvar 1000 2 1000 1 kvar 1 1000 kvar Total reactive power measurement Qtot e Maximum value of total reactive power Qtot MAX e Minimum value of total reactive power Qtot MIN kvar 3000 kvar 3000 2 96 3000 3kvar 3 3000 kvar Only with 4 pole or 3 pole trip unit with ENVT option Apparent power measurements for each phase S1 S2 S3 e M
116. ick up setting value is displayed in amps N WA 2 B 3C 4 2 Select the long time protection tr c aR a time delay LESS GNI UL The long time protection tr time delay setting value is displayed in seconds N WA 2B 3C 3 Select the short time protection Isd c EXPENSES pick up The short time protection Isd pick up setting value is displayed in amps N 1A 2B 3C Neutral Declaration Readout 3 Pole Trip Unit The Neutral declaration readout mode is dedicated to this parameter navigation is therefore limited to the key Step Action Using Display 1 Select the Neutral declaration co Taso ea readout mode The neutral declaration value is displayed N Neutral protection active 3 pole trip unit with ENCT option declared noN Neutral protection not active 3 pole trip unit without ENCT option or with ENCT option not declared N 1 A 2 B 3 C LV434104 09 2009 Using Micrologic Trip Units Setting Mode Protection parameter setting The protection parameter settings can be accessed e By adial and fine tuned on the keypad for the main protection parameters e On the keypad for all protection parameters CAUTION RISK OF NO PROTECTION OR NUISANCE TRIPPING Only qualified persons are authorized to modify the protection parameters Failure to follow these instructions can result in injury or equipment damage The up arrow on the display indicates the
117. icrologic selection S h n d v Micrologic5 2E 4P Ini40 IEC Dp Becr P N LV428106 1 aa G JA Service Basic prot IH Alams SS Outputs Ed Passwords B N VA 28 3C amp c FTO Micrologic Ir tr Isd tsd li IN GE 32 4s 182 4 O 0s 6004 r 0 0004 A E 2 0 800sin 6lr B xlr Pt off 15x lsd 0 000 1 Button for downloading information from the trip unit to the PC 2 Button for downloading information from the PC to the trip unit 118 LV434104 09 2009 The RSU Parameter Setting Software User Profiles 2 different user profiles are available in the RSU software Commissioning and Schneider Service e The Commissioning profile is the default profile when you start the RSU software This profile does not need a password e The Schneider Service profile allows the same access as the Commissioning profile plus the firmware updates and password resets The firmware to be downloaded can be accessed on www schneider electric com Description of the RSU Software Functions The RSU software configuration functions can be accessed via different tabs Tab Functions V Spt Configuring the metering functions Micrologic E Mb asic prot Protection parameter setting H Rum Configuring pre alarms and the 10 user defined alarms 5DX Outputs Assignment of the two SDx outputs Fj Passwor E Configuring four password levels BSCM Module Option Counters for OF operati
118. inition of a Harmonic A periodic signal is a superimposition of e The original sinusoidal signal at the fundamental frequency for example 50 Hz or 60 Hz e Sinusoidal signals whose frequencies are multiples of the fundamental frequency called harmonics e Any DC component This periodic signal is broken down into a sum of terms o y t yo Y y 2 xsin not o 1 where e yg Value of the DC component ya Rms value of the nth harmonic Pulsing of the fundamental frequency Q4 Phase displacement of harmonic component n NOTE The DC component is usually very low even upstream of rectifier bridges and can be deemed to be zero NOTE The first harmonic is called the fundamental original signal Example of a current wave distorted by harmonic currents H1 50 Hz 2 2 Una E IE 3 VVVVV H5 250 Hz DAA AAA 4 Irms Rms value of the total current 11 Fundamental current I3 Third order harmonic current I5 Fifth order harmonic current A amp ommvma LV434104 09 2009 87 The Metering Function RMS Currents and Voltages Micrologic E trip units display the rms values of currents and voltages see Real Time Measurements page 75 e The total rms current I ms is the square root of the sum of the square of the rms currents of each harmonic 2 2 2 2 nrms C Mons lorms harms Haun e The total rms voltage Vig is the square root of the sum of the square of the rms voltages of each h
119. ion Application Aim This section describes the protection characteristics of Micrologic 5 and 6 trip units dedicated to protecting electrical distribution applications What s in this Section This section contains the following topics Topic Page Electrical Distribution Protection 37 Long Time Protection 40 Short Time Protection 43 Instantaneous Protection 45 Ground Fault Protection 46 Neutral Protection 48 ZSI Function 51 Using the ZSI Function with Compact NSX 52 36 LV434104 09 2009 The Protection Function Electrical Distribution Protection Presentation Description Micrologic 5 and 6 trip units on Compact NSX circuit breakers provide protection against overcurrents and ground fault currents for all types of commercial or industrial application Micrologic 5 and 6 trip units offer protection characteristics that comply with the requirements of standard IEC 60947 2 see the Compact NSX circuit breakers User manual The installation rules closely define the protection characteristics to be used taking account of e Overcurrents overloads and short circuits and potential ground fault currents e Conductors to be protected e The presence of harmonic currents e Coordination between the devices Micrologic 5 and 6 trip units are designed to satisfy all these requirements Discrimination Between Devices Coordination between the upstream and downstream devices especia
120. is displayed for 2 s N 1A 2B 3C LV434104 09 2009 25 Using Micrologic Trip Units Example of Setting a Protection Parameter on the Keypad The table below illustrates setting the long time protection tr time delay on a Micrologic 5 2 trip unit Step Action Using Display 1 Unlock the protection settings if the Ir tr isd tsd li xin 9 a pictogram is displayed N WA 2B 3C 2 Select the Protection parameter co i Ir tr isd tsd li xln setting mode N WA 2B 31C 3 Select the tr parameter the up arrow Ir tr isd tsd li xln moves under tr N WA 2 B 31C 4 Set the tr value required on the ED EEEE i ox 80 N 1A 2B 3C 5 Validate the setting the OK c r tr isd tsd li xin pictogram blinks 6 Confirm the setting the confirmation Pox Seer ae TTP EE OK N WA 2B 3C Verification of the Protection Parameter Setting Value In Protection parameter setting mode a parameter setting can be expressed as a relative value In Protection parameter setting value readout mode the parameter setting is expressed directly as an actual value for example in amps To determine the actual value of a parameter currently being set as a relative value for example before validating the setting 9 1 Press the locking unlocking microswitch once the display switches to Readout mode on the parameter currently being set and indi
121. it breaker 3 pole e Orto 25 A in one phase and in the neutral the current Isinstalled on a distribution with distributed neutral intensity in the other 2 phases is zero e Only has one loaded phase on a single phase load LV434104 09 2009 181 Operating Assistance Operation of Pre Alarm and Alarm LEDs Electrical Distribution Protection Operation of Alarm The pre alarm orange LED and alarm red LED indications are tripped as soon as the value of one of the phase currents exceeds 90 and 105 respectively of the Ir pick up setting e Pre alarm Exceeding the pre alarm threshold at 90 of Ir has no effect on activation of the long time protection e Alarm Crossing the alarm threshold at 105 of Ir indicates that the long time protection see Long Time Protection page 40 has been activated with a trip time delay that depends on e The value of the current in the load e The setting of the time delay tr NOTE If the pre alarm and alarm LEDs keep lighting up it is advisable to carry out load shedding in order to avoid tripping due to a circuit breaker overload The figure below illustrates the information supplied by the LEDs 105 Ir 90 Ir 3 1 Current in the load most heavily loaded phase 2 Thermal image calculated by the trip unit LEDs Motor Protection The alarm indication red LED is tripped as soon as the value of the motor thermal image exceeds 95 of the Ir pick up setting
122. ith time discrimination Diagram 3 Diagram 4 tsd tsd Q1 Q1 Q2 zz Q2 l e In the event of a fault downstream of downstream circuit breaker Q2 diagram 3 the trip units on circuit breakers Q1 and Q2 detect the fault simultaneously via the pilot wire the trip unit on circuit breaker Q2 sends a signal to the trip unit on circuit breaker Q1 which remains set on its time delay tsd Circuit breaker Q2 trips and eliminates the fault instantaneously if circuit breaker Q2 is not delayed The other users downstream of circuit breaker Q1 are still supplied with power the energy availability is optimized e Inthe event of a fault downstream of circuit breaker Q1 diagram 4 the trip unit on circuit breaker Q1 does not receive a signal from the trip unit on circuit breaker Q2 Time delay tsd is therefore inhibited Circuit breaker Q1 trips and eliminates the fault on the equipment instantaneously The electrodynamic stress created by the short circuit current on the equipment is reduced to the minimum The ZSI function can be used to optimize the availability of energy just like time discrimination and reduce electrodynamic stress on the equipment The ZSI function is applicable to both short time and ground fault protection LV434104 09 2009 51 The Protection Function Using the ZSI Function with Compact NSX Description The Micrologic 5 and 6 trip units are designed to support the ZSI function The figure below explains ho
123. k access to the information essential for operation lt NEN Metering menu The Metering menu displays the data made available by the Micrologic trip unit Current voltage power energy and harmonic distortion measurements e Minimum and maximum measurement values gm NN Command menu The Command menu controls a circuit breaker from the FDM121 display module which is equipped with a motorized communicating remote control The proposed commands are circuit breaker opening circuit breaker closing circuit breaker reset after tripping A RCM Alarms menu The Alarms menu displays the alarm history of the last 40 alarms detected by the Micrologic trip unit since the last power up see Detailed Tables of Alarms page 110 and Alarms on a Trip Failure and Maintenance Event page 109 Bises Services menu The Services menu contains all the FDM121 display module set up functions and the operating assistance information e Reset peak demand values energy meters Set up display module Maintenance operation counters load profile etc Product version Identification of the intelligent functional unit modules e e e e Language For more information on the FDM121 display module menus refer to the ULP system User manual Navigation Navigation within the Main menu is as follows e The A and W keys are used to select one of the 5 menus e The OK key is used to confirm the
124. k and stays above the pick up before the end of the tund time delay for example a pump temporarily running dry The underload motor protection does not trip e B Activation of protection time delay as soon as the pick up threshold is crossed e D Protection disabled NOTE The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option page 57 N Setting the Protection The lund pick up and the tund time delay settings can only be accessed by the communication option using the RSU software see Protection parameter setting page 121 lund Pick Up Setting Value The lund pick up setting value is expressed in multiples of Ir The pick up setting range is 0 3 0 9 Ir The step is 0 01 Ir The default setting is OFF protection not active The accuracy range is 10 tund Time Delay Setting Value The tund time delay setting value is expressed in seconds The time delay setting range is 1 200 s The step is 1 s The default setting value for the time delay is 10s 70 LV434104 09 2009 The Protection Function Long Start Motor Protection Presentation Long start motor protection provides additional protection e For machines at risk of difficult starting e High inertia machines e High resistive torque machines e Machines with fluctuating load from steady state Examples of machines with a significant risk of difficult starting Fans compressors e To avoid
125. lay equals t ong configurable values Exceeding the t ong time delay results in long time protection tripping NOTE The Micrologic trip unit measurement electronics filters the subtransient state first current peak of approximately 20 ms on contactor closing This current peak is not therefore taken into account when assessing whether the Id pick up has been crossed LV434104 09 2009 55 The Protection Function Steady State Operating Diagram The Micrologic 6 E M trip unit considers the application to be in steady state according to the following criteria e Start As soon as startup ends e End As soon as the 10 of Ir pick up is crossed in a negative direction by the motor current The diagram below shows the 2 operating states for a motor application k Q9 L 10 Ir AL kOoOnND Protection Functions The figure and table below define the protection functions for Micrologic 6 E M trip units Compact NSX circuit breaker status green ON position Contactor status green ON position Current in the motor application Operating states A Startup B Steady state the active states are shown in green 0 em 2 Micrologic 6 3 E M ES l x zo 3 I li 4800A 6 6 l 4 zg on lH gt es eo j ea 5 Tog a l l l gt No Parameter Description Function
126. lly discrimination is essential to optimize continuity of service The large number of options for setting the protection parameters on Micrologic 5 and 6 trip units improves the natural coordination between Compact NSX circuit breakers see the Compact NSX 100 630 A Catalogue 3 discrimination techniques can be used 1 Current discrimination which corresponds to staging of the long time protection pick up 2 Time discrimination which corresponds to staging of the short time protection pick up 3 Energy discrimination which corresponds to staging of the circuit breaker energy levels this applies for very high intensity short circuit currents t4 qQ2 01 fi Discrimination Rules The discrimination rules depend on e The type of trip unit on the circuit breakers installed upstream and downstream electronic or thermal magnetic e The accuracy of the settings LV434104 09 2009 37 The Protection Function Discrimination of Overload Protection For overload protection the discrimination rules between electronic trip units are as follows 1 Current discrimination e A ratio of 1 3 between the Ir pick up for long time protection of the trip unit on the upstream circuit breaker Q1 and that of the trip unit on the downstream circuit breaker Q2 is usually sufficient e The tr time delay for long time protection of the trip unit on the upstream circuit breaker Q1 is identical or higher than that of the trip unit on
127. ls the pick up threshold The alarm is deactivated when the associated monitored quantity is different from the pick up threshold Alarm activation is determined using the pick up drop out thresholds The figure below illustrates activation of an alarm on an equality condition monitoring of quadrant4 Quadrant 4 SA Pick up threshold SD Drop out thresholds 1 Quadrant 4 alarm pick up zone in green Management of Time Delays Superiority or Inferiority Conditions The alarm time delays are managed by 2 counters that are normally at 0 For the pick up threshold the time delay counter is e Incremented when the activation condition is fulfilled e Decremented if the activation condition is no longer fulfilled before the end of the pick up time delay If the deactivation condition is reached the pick up time delay counter is reset and the drop out time delay counter is incremented For the drop out threshold the same principle is used Example Management of the time delay on an overvoltage alarm code 79 see Detailed Tables of Alarms page 110 viv 4 500 420 Evolution of the voltage Pick up time delay counter at 5 s Drop out time delay counter at 2 s Overvoltage alarm pick up zone in green kOoORND The alarm pick up time delay counter trips when the 500 V threshold is crossed by the voltage It is incremented or decremented according to the value of the voltage in relation to t
128. lseeeees eee nn 153 tee ee RU ON d e D c e CD un CO a Qv ee CR a An DOE D UE ci 155 Additional Characteristics eller 157 Compact NSX100 to 250 Distribution Protection 0 0 0 cee eee 158 Compact NSX100 to 250 Motor Feeder Protection 162 Compact NSX400 to 630 Distribution Protection 0 0 0 0 cece eee 164 Compact NSX400 to 630 Motor Feeder Protection llis 166 Compact NSX100 to 630 Reflex Tripping 0 0 0 0 cee cette 168 Compact NSX100 to 630 Limitation Curves 00 00 cece tees 169 LV434104 09 2009 Safety Information Za Important Information NOTICE PLEASE NOTE Read these instructions carefully and look at the equipment to become familiar with the device before trying to install operate or maintain it The following special messages may appear throughout this documentation or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure The addition of this symbol to a Danger or Warning safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death A DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury A WARNING WARNING indicates a potent
129. m motor protection White Not active startup Green Active steady state LV434104 09 2009 57 The Protection Function Analysis of Operation The table below describes operation without the SDTAM module diagram I Event Comments A Application motor switches to steady state Jam motor protection monitoring is activated B Occurrence of an overload current on the application for example rotor braked due to high viscosity of one of the mixing fluids The Jam motor protection tjam time delay is actuated as soon as the motor current crosses the ljam pick up C End of Jam motor protection time delay Jam motor protection causes the Compact NSX circuit breaker to trip D Application returned to service manually after the motor has cooled and the circuit breaker has closed again The table below describes operation with the SDTAM module diagram II Event Comments A Identical to diagram I B Identical to diagram I C 400 ms before the end of the Jam motor protection time delay the SDTAM module e Commands the contactor to open output OUT2 e Sends a fault indication output OUT1 Both outputs are activated for a time delay which can be set between 1 and 15 minutes D Application contactor returned to service automatically the time delay allows the motor to cool down The SDTAM module can be set to the OFF position the application is returned to service manually by deac
130. medium intensity currents I lt Ir the conductor equilibrium temperature for an infinite time only depends on the current quadratic demand value See Quadratic Demand Value Thermal Image page 79 The limit temperature corresponds to a limit current Ir pick up for trip unit long time protection For low overcurrents Ir lt lt Isd the conductor temperature only depends on the I t energy provided by the current The limit temperature is an lt IDMT curve For high overcurrents I gt Isd the phenomenon is identical if the l t ON function of the short time protection has been configured see 2t ON OFF Function page 44 The figure below in double log scales represents a heat rise curve A for an equilibrium temperature 0 and a trip curve B for the limit temperature 0L ti A ive ramm J o 0 OL de 1 Low intensity current zone 2 Low overcurrent zone Micrologic 5 and 6 trip units incorporate the thermal memory function which ensures that the conductors are cooled even after tripping cooling lasts for 20 minutes before or after tripping LV434104 09 2009 The Protection Function Short Time Protection Presentation Short time protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution application against short circuit currents It is identical for Micrologic 5 and 6 trip units Operating Principle Short time protection is definite time
131. meter for maintenance of an installation e The signed values of the energy supplied and the energy consumed are needed to calculate the economic cost of an item of equipment By default absolute energy accumulation mode is configured The parameter setting can be modified using the RSU software see Metering Setup page 123 LV434104 09 2009 85 The Metering Function Resetting Energy Meters The energy meters are arranged in the energy generating set see Real Time Measurements page 75 The energy meters can be reset via the communication option or on the front display module FDM121 There are 2 additional active energy accumulation meters Epln and EpOut that cannot be reset 86 LV434104 09 2009 The Metering Function Harmonic Currents Origin and Effects of Harmonics The number of nonlinear loads present on electrical networks is always increasing which results in a higher level of harmonic currents circulating in the electrical networks These harmonic currents e Distort the current and voltage waves e Degrade the quality of the distributed energy These distortions if they are significant may result in e Malfunctions or degraded operation in the powered devices e Unwanted heat rises in the devices and conductors e Excessive power consumption These various problems naturally result in additional installation and operating costs It is therefore necessary to control the energy quality carefully Def
132. n The Ig pick up can be set as follows e On the Micrologic trip unit preset by the Ig dial and fine tuned on the keypad e Via the communication option using the RSU software preset by the Ig dial on the Micrologic trip unit and fine tuned via the RSU software The tg time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software 64 LV434104 09 2009 The Protection Function Ig Pick Up Setting Values The lg pick up setting value is expressed in multiples of In The default Ig pick up setting value is the same as the minimum dial value e 0 60 In for trip units rated 25 A e 0 30 In for trip units rated 50 A e 0 20 In for trip units rated gt 50A Ground fault protection can be deactivated by setting the Ig dial to the OFF position Ground fault protection can be reactivated even with the Ig dial in the OFF position e By fine tuning on the keypad e Via the communication option The 3 tables below specify the setting values preset by a dial and setting ranges set on the keypad e Fortrip units rated 25 A e Fortrip units rated 50A e For trip units rated gt 50A On the keypad the step is 0 05 In Rating 25 A Type of Setting Value or Setting Range xin Preset by a dial 0 60 0 60 0 60 0 60 0 70 0 80 0 90 1 OFF Setting range 0 60 0 60 0 60 0 60 0 6 0 7 0 6 0 8 0 6 0 9 0 6 1 0 6 1 OFF on the keypad
133. n an equality condition correspond to a load state e Operating quadrant e Leading or lagging reactive power Example Setting the parameters for monitoring a quadrant code 150 see Detailed Tables of Alarms page 110 using the RSU software Alarms setup Selected alarm Lagging cos j IEEE Quadrant 4 Code qo Priority ow gt Pick up 1 e OK 1 Pick up threshold Quadrant 4 The drop out thresholds are quadrant values other than 4 LV434104 09 2009 139 Operating Assistance Alarm Monitoring of the Cos q and Power Factor Managing the Cos and Power Factor PF Monitoring of the cos q and power factor PF indicators depends on the sign convention selected for the power factor PF see Power factor PF and cos e measurement Micrologic E page 91 IEEE or IEC convention NOTE The alarm type associated with the indicators for example leading PF IEEE code 31 or lead or lag PF IEC code 33 must be consistent with the sign convention selected IEEE or IEC for the PF indicator in the RSU software see Metering Setup page 123 The IEEE convention is the default selection Indicator Maximum and Minimum Values e The maximum value of the PF MAX or cos MAX indicator is obtained for the smallest positive value of the PF or cos q indicator e The minimum value of the PF MIN or cos MIN indicator is obtained for the largest negative value of the PF or cos q in
134. n the Micrologic trip unit are used to monitor the 2 critical situations automatically Electrical Distribution Monitored According to IEC Convention The table below gives the history of the cos values of the load of a workshop downstream of a Compact NSX according to IEC convention Time Evolution of the Load IEC Convention Cos o cos MIN cos o MAX t1 28h 00 min Power startup 0 4 0 4 0 4 t228h01 min Compensation system startup 0 9 0 9 0 4 t3 9 h 20 min Power stops 0 3 0 9 0 3 t4 2 9 h 21 min Compensation system stops 0 95 0 95 0 3 The value of cos alone cannot be used to define the action to be taken to increase its value should inductances or capacitors be installed 140 LV434104 09 2009 Operating Assistance Interpreting the Cos o MAX and the Cos 9 Values According to IEC Convention The cos MAX value corresponds to the minimum value of the load cos 9 whether leading or lagging this gives the user information on how the equipment is performing from a cost point of view The value of cos alone cannot be used to define the action to be taken to increase its value should inductances or capacitors be installed The alarm on the cos according to IEC convention integrated in the Micrologic trip unit is used to send an alert if a critical situation occurs This alarm associated with an alarm defining the type of load or the operating quad
135. nd maintenance event and all alarms associated with a measurement activated beforehand in the Alarms tab can be assigned to an SDx module output The SDx module output parameter settings can be accessed using the RSU software under the IE Outputs tab Micrologic RSU C WMicrologicWtility RSU_AWData New rsa Eile Remote functions Setup Live update Help Micrologic selection r Trip unit Distibutior Mictologe62E P v mfo x jec E P N LV431506 v Service m Basic prot n Alarms Outputs Breaker 1 0 ES Interface iv SDX SDX designation Assigned event Mode Delay s SDX Out 1 Long time prot Ir SDX Out 2 Gound fault prot Ig Default Assignment of the SDx Module Outputs The figure below illustrates the Outputs tab for a Micrologic 6 trip unit Iv SDX SDX designation Assigned event Mode Delay s SDX Dut 1 Long time prot Ir SDX Out 2 Gound fault prot Ig The SDx module output assignment depends on the type of Micrologic trip unit installed on the module Both outputs are assigned by default as follows e Micrologic 5 trip unit e Output 1 is assigned to the thermal fault indication SDT function e Output 2 is assigned to the long time pre alarm PAL Ir function e Micrologic 6 trip unit e Output 1 is assigned to the thermal fault indication SDT function for electrical distribution applications Output 1 is assigned to None for mo
136. nicating motor mechanism and equipped with a Micrologic 6 3 E trip unit e An Advantys OTB interface module connected to the OF contacts of non communicating circuit breakers Ethernet TCP IP Modbus Advantys OTB Masterpact NW20 Compact NSX160 Compact NSX400 148 LV434104 09 2009 Operating Assistance RCU Software Functions The RCU software includes the following functions available depending on which devices are connected e Real time display of measurements e The currents for each phase e Voltages e Total powers e Energies e Real time display of quality indicators e The power factor PF e The total harmonic distortion for both current and voltage Real time display of maintenance indicators Real time display of circuit breaker open closed trip states Viewing histories trips alarms maintenance operations Open close command for circuit breakers with motor mechanism Reset meters and minimum and maximum values command Command functions are protected by a password Example of RCU Screen The figure below illustrates the current metering screen for a Compact NSX circuit breaker 2 RCU 2 11 Fichier Entr es d port es Setup Langue Aide DEP Clim Compact NSX X 1A ut PRW Ekwh THD Dives lr nf 342 A Using the RCU Software For all information on using the RCU software refer to the RCU Software Online Help LV434104 09 2009 149 Operating Assistance
137. nts The risks of malfunction degradation dangerous heat rise are almost certain if the installation has not been specifically calculated and sized with this restriction in mind Deformation of the current wave created by a polluting device can lead to deformation of the voltage wave depending on the level of pollution and the source impedance This deformation of the voltage wave is seen by all receivers powered by the supply Sensitive receivers can therefore be disturbed Hence a polluting receiver with a high THD I may not be affected by its pollution but it may cause malfunctions on other sensitive receivers NOTE THD I metering is an effective way of determining the potential polluters on electrical networks LV434104 09 2009 89 The Metering Function Voltage THD Distortion Power D The voltage THD is defined by standard IEC gt 61000 2 2 It is expressed as a of the rms value of harmonic voltages greater than 1 in relation to the rms value of the fundamental voltage first order The Micrologic E trip unit calculates the voltage THD up to the 15th harmonic 15 2 2 Nine Virms This factor can in theory be higher than 100 but is in practice rarely higher than 15 The total harmonic distortion THD V can be used to assess the deformation of the voltage wave by means of a single number The limit values below are usually taken into account by energy distribution companies THD V
138. ogic 2 2 250A 10 000 5 000 40A Ir2 16 40A 100 A Ir 36 100 A 160 A Ir 57 160 A DB114767 250 A Ir 90 250 A 2 000 1 000 500 200 100 50 20 1 t s Isd 1 5 10 x Ir Isd 1 5 10 x Ir 4a by anean aoao 05 02 01 005 t lt 10 ms t lt 10 ms gt gt FILET NN li 15x In 20 30 50 70100 FETIE ETT li 12 x In 20 30 50 70100 002 j 001 200 300 5 71 2 345 7 10 lt lr 200 300 Micrologic 2 2 G 250A 10 000 40A lIr 16 40 A 5 000 100 A Ir 36 100 A 160 A Ir 57 160A DB114769 250 A Ir 90 250 A 2 000 1 000 500 200 100 50 20 1 t s Isd 1 5 9 x Ir Isd 1 5 9 x Ir ann 002v oo 05 02 t lt 10 ms 01 005 t lt 10 ms li 12x In 20 30 50 70100 002 j 001 200 300 5 71 2 345 7 10 lllr li 15 x In 20 30 50 70100 345 7 10 200 300 160 LV434104 09 2009 Tripping and Limitation Curves Tripping Curves Micrologic 5 2 and 6 2 A or E electronic trip units Micrologic 5 2 and 6 2 A or E 40 160A 10 000 5 000 40A lr 16 40A 100 A Ir 36 100 A 160 A Ir 56 160 A DB114770 2 000 1 000 500 200 100 50 tr 0 5 16 s t s Isd 1 5 10 x Ir lt OFF t lt 10 ms gt li 1 5 15 In 5 71 2 345710 205 7 10 20 30 50 _ l ir S s In 002 001
139. ogic E 85 Harmonic Currents 87 Metering Energy Quality Indicators Micrologic E 89 Power factor PF and cos o measurement Micrologic E 91 74 LV434104 09 2009 The Metering Function Real Time Measurements Instantaneous Values Micrologic A and E trip units Measure the following in real time and as an rms value e Instantaneous current for each phase and the neutral if present e Ground fault current Micrologic 6 Calculate the average phase current in real time Determine the maximum and minimum values for these electrical quantities Micrologic E trip units Measure the instantaneous phase to phase and phase to neutral voltage if present in real time and as an rms value Calculate the associated electrical quantities from the rms values of the currents and voltages such as e Average phase to phase voltage and phase to neutral voltage if present e Current unbalances e Phase to phase voltage unbalances and phase to neutral voltage unbalances if present e Powers see Power Metering Micrologic E page 80 e Quality indicators frequency THD I and THD V see Metering Energy Quality Indicators Micrologic E page 89 and Power factor PF and cos g measurement Micrologic E page 91 e Operating indicators quadrants phase rotation and type of load Determine the maximum and minimum values for these electrical quantities Increment in real time 3 energy meters active reactive apparent using the total power
140. ols RCU software and FDM121 display module What s in this Chapter This chapter contains the following sections Section Topic Page 6 1 Micrologic Trip Unit Indicators 130 6 2 FDM121 Switchboard Display Unit 142 6 3 RCU Operating Software 148 6 4 The Communication Network 150 LV434104 09 2009 129 Operating Assistance 6 1 Micrologic Trip Unit Indicators Aim This section describes the supervision and monitoring options for an installation using the Micrologic trip unit local indicators LEDs and LCD display What s in this Section This section contains the following topics Topic Page Local LED Indication 131 Indication on the Micrologic Display 133 Examples of Using Alarms 138 Alarm Monitoring of the Cos and Power Factor 140 130 LV434104 09 2009 Operating Assistance Local LED Indication Local Indicator LED The number of LEDs and their meaning depend on the type of Micrologic trip unit Type of Micrologic Description Distribution e Ready LED green Blinks slowly when the electronic trip unit is ready to provide gt gt 15A 290 2105 protection 9 QE Q 0 Overload pre alarm LED orange Shows a steady light when the load exceeds g ig 90 of the Ir setting e Overload alarm LED red Shows a steady light when the load exceeds 105 of the Ir setting Motor e Ready LED green Blinks slowly when the electronic trip unit is ready to provide p
141. ons and actions on SD and SDE faults e Alarm threshold associated with the OF counter e Communicating motor mechanism Close command counter e Communicating motor mechanism Configuring the motor reset command Communicating motor mechanism Alarm threshold associated with the close command counter EFlBreakerl D Modbus Interface Option e Reading Modbus addresses meer ve Interf PAZ IM menace Setting the Communication Parameters The Basic prot tab is displayed by default when the user starts RSU The active tab is indicated by a blue pictogram For example this pictogram I indicates that the Basic prot tab is the active tab In the example below the user has manually selected a Micrologic 6 2 E trip unit offline mode The Basic prot tab displays a reproduction of the front face of the Micrologic trip unit as well as its protection settings EA Mic rologic RSU C MicrologicWtility RSU_A Data New rsa File Remote functions Setup Live update Help Micrologic selection Trip unt Distribution v Mictologic6 2E 3P Inf2s0 lec gt Schneider 1 Elecuric P N LV431506 v 24 E Service Basic prot IH Alarms ES Outputs f Breaker 1 0 RA Interface 2 Ir tr Isd tsd li lg 3 250 4 0500s 375 4 0000s 3754 50A 0000s Tain b6lr 1 5slr ft off T 5xn Q200xn Pt off tg 1 Micrologic selection windows 2 Accessible function tabs 3 Protection settings In the con
142. or applications e Allow protection and coordination of the motor feeder components that comply with the requirements of standard IEC 60947 2 and IEC 60947 4 1 see the Compact NSX circuit breakers User manual Compact NSX circuit breakers equipped with the Micrologic 6 E M trip unit can be used to create motor feeders to 2 devices 1 Compact NSX circuit breaker equipped with a Micrologic 6 E M trip unit 1A Short circuit protection 1B Overload protection 1C Ground fault current protection 2 Contactor 3 SDTAM Module Option The Micrologic 6 E M trip unit considers the application to be operating as soon as the 10 of Ir pick up is crossed in a positive direction by the motor current 2 operating states are considered e Startup e Steady state The Micrologic 6 E M trip unit considers the application to be in startup mode according to the following criteria e Start As soon as the 10 of Ir pick up is crossed in a positive direction by the motor current e End As soon as the Id pick up is crossed in a negative direction or at maximum after a td time delay defined as follows e f long time protection has not been activated default scenario the Id pick up equals 1 5 Ir and the td time delay equals 10 s non configurable values Exceeding the 10 s time delay does not result in tripping e If long time protection see Long Start Motor Protection page 71 has been activated the Id pick up equals l ong and the td time de
143. ower P measurement Read the Ptot active power Ir tr isd tsd li xln N 1A 2B 3C 20 LV434104 09 2009 Using Micrologic Trip Units Energy Meter Readout Micrologic E Energy meters change measurement unit automatically e For active energy Ep displayed in kWh from 0 to 9999 kWh then in MWh e For reactive energy Eq displayed in kvarh from 0 to 9999 kvarh then in Mvarh e For apparent energy Es displayed in kVAh from 0 to 9999 kVAh then in MVAh When energies are indicated in MWh or Mkvarh or MVAh the values are displayed on 4 digits The Micrologic trip unit incorporates the option of full energy meter readout Full Energy Meter Readout The table below gives the full readout values of the Ep active energy meter Step Action Using Display 1 Select the Readout and reset the co Ir tr dsd tsd li xin energy meter mode main screen displayed N WA 2B 3C 2 Select the Ep active energy meter i z DD tr Isd tsd li xl The value displayed is 11 3 MWh in E Modi the example this corresponds to 10 MWh 1300 kWh approximately N WA 2 B 3C c 3 Specify the measurement The value displayed is 1318 kWh in lt gt UEM a i the example the full energy meter value is 11318 kWh N WA 2B 3C 4 Return to the energy meter normal ae Ee Co display The display reverts automatically after 5 minutes N WA 2B 3C Energy Meter Reset The energy meters can
144. owing topics Topic Page Compact NSX100 to 250 Distribution Protection 158 Compact NSX100 to 250 Motor Feeder Protection 162 Compact NSX400 to 630 Distribution Protection 164 Compact NSX400 to 630 Motor Feeder Protection 166 Compact NSX100 to 630 Reflex Tripping 168 Compact NSX100 to 630 Limitation Curves 169 LV434104 09 2009 157 Tripping and Limitation Curves Compact NSX100 to 250 Distribution Protection Tripping Curves TM magnetic trip units TM16D TM16G TM25D TM25G 8 A 10000 amp 10 000 5 5 000 5 5 000 a a 2 000 2 000 1 000 1 000 500 500 200 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 1 TM16D Im 12 x In 4 TM25D Im 12x In 5 5 2 2 1 TM16G Im 2 4 x In 4 05 05 02 02 01 gt t lt 10 ms 01 ie i gt t lt 10ms 005 005 nese 002 002 001 001 um 2 345 7 10 20 30 5070100 200300 571 2 345 7 10 20 30 5070100 200300 E Mw ir 7 Reflex tripping TM32D TM40D TM40G TM50D TM63D TM63G E A10000 8 4 10000 H 5 000 E 5 000 a a 2 000 2 000 1 000 1 000 500 500 200 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 4 TM40D Im 7 12 x In 4 TM63D Im 8 x In 5 5 i TM32D Im 12 5 x In P Ic Me 4 1 05 05 02 02 01 gt t 10 ms 01 gt t lt 10ms 005 005 002 002 001 001 5 71 2 345 710 20 30 5070100 200300 5 71 2 345 710 20 30 50701
145. pecific applications Metering instantaneous values metering demand values for electrical quantities Kilowatt hour metering Operating assistance peak demand values customized alarms operation counters etc e e e e Communication Micrologic 6 3 E M 1 Front faces of Micrologic trip units for distribution and motor protection 2 Compact NSX 250 and 630 circuit breakers 3 pole 3 Micrologic 5 2 A 250 trip unit 4 pole 4 SDx and SDTAM indication modules 5 Compact NSX communicating intelligent functional unit with ULP system consisting of A Modbus communication interface B Front display module FDM121 C Compact NSX circuit breaker equipped with a Micrologic trip unit BSCM module and the NSX cord 6 Micrologic maintenance interface For more information on the maintenance interface indication and communication modules refer to the Compact NSX circuit breakers User manual LV434104 09 2009 11 Using Micrologic Trip Units Identification The trip unit installed on the circuit breaker is identified by a combination of 4 characters on the front face Micrologic 6 3 E M XY Z T Identification on Micrologic electronic trip units Protection X Case Y Measurements Z Application T 1 2 Compact NSX 100 A Ammeter Distribution 2 LS 160 250 E Energy G Generator 5 LSI 3 Compact NSX 400 AB Subscriber 6 LSIG 630 M Motor Z 16Hz2 3 Examples
146. pick up Lm L 2 tr Long time protection time delay a a 3 Isd Short time protection pick up Sm 4 tsd Short time protection time delay E a 5 l t ON OFF Short time protection I t curve in ON or OFF position a a 6 li Instantaneous protection pick up m a 7 lg Ground fault protection pick up G E 8 tg Ground fault protection time delay a 9 I t ON OFF Ground fault protection I t curve in ON or OFF position E Function B Adjustable O Non adjustable Not present Setting the Protection The protection parameters can be set as follows e On the Micrologic trip unit using the preset dials depending on the protection parameter and the Micrologic type and on the keypad e Via the communication option using the RSU software under the Basic prot tab For more information on the protection parameter setting procedure using the RSU software see Protection parameter setting page 121 Integrated Instantaneous Protection In addition to the adjustable instantaneous protection Micrologic trip units for electrical distribution protection feature a SELLIMnon adjustable integrated instantaneous protection which can improve discrimination Reflex Protection In addition to the devices integrated in the Micrologic trip units Compact NSX circuit breakers are equipped with reflex protection piston effect As soon as a very high short circuit current occurs above the instantaneous protection pick up opening of the main contacts c
147. r Protection reete See REG 2 ek quen ri od erg odie 68 Underload Motor Protection 0 0 eects 70 Long Start Motor Protection 0 0 cece mh 71 Chapter 3 The Metering Function 0 00 ee eee eee eee 73 3 1 Measurement Techniques 002 cee eee he 74 Real Time Measurements 0 0 c cece ttt re 75 Calculating Demand values Micrologic E 0 0 eese 78 Power Metering Micrologic E lisse RIAM 80 Power Calculation Algorithm 2 0 0 0 cette ren 83 Energy Metering Micrologic E ssl RII 85 Harmoni G rrents x e Ido teh t he petito ied aite ubt ebrius 87 Metering Energy Quality Indicators Micrologic E llli 89 Power factor PF and cos measurement Micrologic E 0 e eee eee 91 3 2 Measurement Accuracy Tables illie 95 Measurement Accuracy lesser hh hm hm 96 Micrologic A Real Time Measurements ssseeeele ee 97 Micrologic E Real Time Measurements slseleele ene 98 Micrologic E Demand Value Measurements 0 00 cee eet eee 103 Micrologic E Energy Metering 0 0c eee RII 104 Chapter 4 Alarms o6 sue stake oe PRA A a eee Eee eae ee ele ee 105 Alarms Associated with Measurements 0 00 e eee eee tte eee 106 Alarms on a Trip Failure and Maintenance Event 0000e cece eee eae 109 Detailed Tables of Alarms 0 0000 cee eee eee 110 Operation of SDx and SDTAM
148. r Pick Up Drop Out Drop Out Over Current inst I1 1 0 2 10 In 1 3000 s In 40s 10s Over Current inst I2 2 0 2 10 In 1 3000 s In 40s 10s Over Current inst I3 3 0 2 10 In 1 3000 s In 40s 10s Over Current inst IN 4 0 2 10 In 1 3000 s In 40s 10s Ground Fault alarm 5 10 0 100 Ig 1 3000 s 40 ig 40s 10s Micrologic 6 trip unit Under Current inst 11 6 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I2 7 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I3 8 0 2 10 In 1 3000 s 0 2 In 40s 10s Over lunbal phase 1 9 5 60 lavg 1 3000 s 25 96 40s 10s Over lunbal phase 2 10 5 60 lavg 1 3000 s 25 96 40s 10s Over lunbal phase 3 11 5 60 lavg 1 3000 s 25 96 40s 10s Over Voltage V1N 12 100 1100 V 1 3000 s 300 V 40 s 10s Over Voltage V2N 13 100 1100 V 1 3000 s 300 V 40 s 10s Over Voltage V3N 14 100 1100 V 1 3000 s 300 V 40 s 10s Under Voltage V1N 15 100 1100 V 1 3000 s 180 V 40s 10s Under Voltage V2N 16 100 1100 V 1 3000 s 180 V 40s 10s Under Voltage V3N 17 100 1100 V 1 3000 s 180 V 40s 10s Over Vunbal V1N 18 2 30 Vavg 1 3000 s 10 96 40s 10s Over Vunbal V2N 19 2 30 Vavg 1 3000 s 10 96 40s 10s Over Vunbal V3N 20 2 30 Vavg 1 3000 s 10 40s 10s Over total KVA 21 1 1000 kVA 1 3000 s 100 kVA 40s 10s Over direct KW 22 1 1000 kW 1 3000 s 100 kW 40s 10s Return KW power 23 1 1000 kW 1 3000 s 100 kW 40s 10s Over direct KVAr 24 1 1000 kvar 1 3000 s 100 kvar 40s 10s
149. r ground corresponding to the value ww Bou a e Ground fault current Micrologic 6 lg read e Neutral current IN 4 pole or 3 pole with ENCT A option T F Readout and resetting of the A The down arrow indicates M E ae e Maximum li MAX for the 3 phase currents the conductor phase ax Reset 1 e Maximum ground fault current Micrologic 6 lg neutral or ground on which the maximum was e Maximum IN MAX for the neutral current 4 pole A measured or 3 pole with ENCT option Micrologic E Energy Mode Description of Screens Unit Down Arrows ye Rous Readout as instantaneous rms value of the A The down arrow indicates oUm e 3 phase currents I1 A I2 B and I3 C the conductor phase e Ground fault current Micrologic 6 lg neutral or ground corresponding to the e Neutral current IN 4 pole or 3 pole with ENCT A value read option Readout as instantaneous rms value of the V The down arrows indicate e Phase to phase voltages V12 V23 and V31 the conductors phases or Phase to neutral voltages V1N V2N and V3N 4 neutral corresponding to pole or 3 pole with ENVT option the value read Readout of the total active power Ptot kW The down arrows indicate Readout of the total apparent power Stot kVA the 3 phase conductors Readout of the total reactive power Qtot kvar is Readout and resetting of the active energy meter E kWh ve Bou g gy p
150. rant can be used to monitor the 2 critical situations automatically Setting the Cos Alarm Parameters According to IEEE Convention Monitoring of the cos q indicator is applied to management of the workshop described above e When the power is started too high a value of cos lagging for example higher than 0 6 results in tariff penalties The capacitive compensation value to be used is determined by the value of the Qfund reactive power e When the power is stopped too low a value of cos leading for example less than 0 6 results in tariff penalties The capacitive compensation element must be disconnected 2 alarms monitor the indicators fully e Alarm 124 monitoring of the lagging cos on a superiority condition for operation in quadrant 1 inductive reactive energy consumed e Alarm 121 monitoring of the leading cos on an inferiority condition for operation in quadrant 4 capacitive reactive energy consumed Setting the parameters for monitoring the cos codes 121 and 124 according to IEEE convention using the RSU software Alans setup Selected alarm Lagging cos EEE Lagging cos DELL Alanis setup Selected siam Nore Leming cos I EEE Code 124 preety Meum Code 121 preety Mecum Pick up Drop out Pick up Drop cut vele qua 050 H H vaenu 08 rr vaeva 050 HH vwa 05 HHH delay 2 40 HH eyes 10 EET swojo HH se 1o 44 Ea ems umi 124 Monitoring the lagging cos 121
151. reates an electric arc pressure which acts on a piston instantaneously This piston frees the opening mechanism and causes ultra fast circuit breaker tripping LV434104 09 2009 39 The Protection Function Long Time Protection Presentation Operating Principle Long time protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution application against overload currents It is identical for Micrologic 5 and 6 trip units Long time protection is It IDMT e t incorporates the thermal image function e lt can be configured as the Ir pick up and as the tr trip time delay Tripping curve 1002503 0 1 2 jp e No Parameter Description 0 In Trip unit setting range The maximum setting corresponds to the trip unit In rating Ir Long time protection pick up 2 tr Long time protection time delay Setting the Long Time Protection The Ir pick up can be set as follows e On the Micrologic trip unit preset by the Ir dial and fine tuned on the keypad e Via the communication option using the RSU software preset by the Ir dial on the Micrologic trip unit and fine tuned via the RSU software The time delay tr can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software 40 LV434104 09 2009 The Protection Function Ir Pick Up Setting Value The long time protec
152. rent power Sfundtot of the fundamental first order Pfundtot CoS Sfundtot This indicator qualifies use of the energy supplied Power factor PF and cos when harmonic currents are present If the supply voltage is not too distorted the power factor PF is expressed as a function of the cos and the THD I by cos J THD 2 The graph below specifies the value of PF cos as a function of the THD I PF x FP cos n 12 1 JL L 0 6 04 02 gt 0 50 100 150 THD I By comparing the 2 values it is possible to estimate the level of harmonic pollution on the supply LV434104 09 2009 91 The Metering Function Sign for the power factor PF and cos o 2 sign conventions can be applied for these indicators e IEC convention The sign for these indicators complies strictly with the signed calculations of the powers i e Ptot Stot and Pfundtot Sfundtot e IEEE convention The indicators are calculated in accordance with the IEC convention but multiplied by the inverse of the sign for the reactive power Q Ptot Pfundtot Fz stot C 319n Q and coso Sfundiot x sign Q The figures below define the sign for the power factor PF and the cos in all 4 quadrants Q1 Q2 Q3 and Q4 for both conventions IEC Convention Operation in all 4 quadrants Q1 Q2 Q3 Q4 Values of cos q in receiver mode Q1 Q4 P 0 Q 0 FP 0 P gt 0 Q 0 FP
153. ring on the neutral conductor 4 Pole or 3 Pole with ENVT 3 Wattmeter Method 3 Pole without ENVT 2 Wattmeter Method pn unit measures the power by taking account of 3 single phase loads downstream When there is voltage metering on the neutral 4 pole or 3 pole circuit breaker with ENVT option the Micrologic E trip When there is no voltage metering on the neutral 3 pole circuit breaker the Micrologic E trip unit measures the power e Using the current from two phases I1 and I3 and composite voltages from each of these two phases in relation to the third V12 and V32 e supposing by definition that the current in the neutral conductor is zero gt gt gt la lo la 70 The calculated power Ptot equals Vy nly cos V4N In Voylocos Vo y D Vaya COS Vs ny 13 The calculated power Ptot equals PW1 PW2 V42l4 cos V45 14 Vaols cos V35 13 The table below lists the metering options Method 3 Pole Circuit 3 Pole Circuit 3 Pole Circuit Breaker 4 Pole Circuit Breaker Non Breaker distributed neutral Breaker Distributed Neutral Distributed Neutral ENVT option 2 wattmeters X X 1 3 wattmeters X X 1 The measurement is incorrect once there is current circulating in the neutral 3 Pole Circuit Breaker Distributed Neutral The ENVT option must be declared using the RSU software see Metering Setup page 123
154. rip unit calculates the electrical quantities required for power management The instantaneous values of the e Active powers total Ptot and per phase in kW e Reactive powers total Qtot and per phase in kvar e Apparent powers total Stot and per phase in kVA e Fundamental reactive powers total Qfundtot and per phase in kvar e Distortion powers total Dtot and per phase in kvar The maximum and minimum values for each of these powers The Demand values and the peaks for the total Ptot Qtot and Stot powers The cos and power factor PF indicators The operating quadrant and type of load leading or lagging All these electrical quantities are calculated in real time and their value is updated once a second Principle of Power Metering The Micrologic E trip unit calculates the powers from the rms values of the currents and voltages Calculation Algorithm The calculation principle is based on Definition of the powers Algorithms depending on the type of trip unit 4 pole or 3 pole Definition of the power sign circuit breaker powered from the top or underside The calculation algorithm based on the definition of the powers is explained in Power Calculation Algorithm page 83 Calculations are performed taking account of harmonics up to the 15th 80 LV434104 09 2009 The Metering Function 3 Pole Circuit Breaker 4 Pole Circuit Breaker The calculation algorithm depends on the presence or absence of voltage mete
155. rity Label Code Setting Range Default Setting Thresholds Time Thresholds Time Delay Pick Up or Delay Pick Up Drop Out Drop Out Over Current inst 11 1 0 2 10 In 1 3000s In 40s 10s Over Current inst I2 2 0 2 10 In 1 3000s In 40s 10s Over Current inst I3 3 0 2 10 In 1 3000 s In 40s 10s Over Current inst IN 4 0 2 10 In 1 3000s In 40s 10s Ground Fault alarm 5 10 0 100 Ig 1 3000s 40 ig 40s 10s Micrologic 6 trip unit Under Current inst I1 6 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst 12 7 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I3 8 0 2 10 In 1 3000 s 0 2 In 40s 10s Over Current lavg 55 0 2 10 In 1 3000s In 60s 15s Over MAX 1 2 3 56 0 2 10 In 1 3000 s In 60s 15s Under Current IN 57 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current lavg 60 0 2 10 In 1 3000 s 0 2 In 60s 15s Under MIN 1 2 3 65 0 2 10 In 1 3000 s 0 2 In 60s 15s 110 LV434104 09 2009 Alarms User Defined Alarms Micrologic E By default e User defined alarms are not active e Alarms 1 to 144 are medium priority e Alarms 145 to 150 are low priority Label Code Setting Range Default Setting Thresholds Time Delay Thresholds Time Delay Pick Up o
156. rotection Ea A FUE e Overload temperature alarm LED red Shows a steady light when the motor S Ols ATO thermal image exceeds 95 of the Ir setting a Operation of the Ready LED The Ready LED green blinks slowly when the electronic trip unit is ready to provide protection It indicates that the trip unit is operating correctly NOTE Activation of the Ready LED is guaranteed for a value equal to the sum of the circuit breaker current intensities for each phase and the neutral above a limit value This limit value is indicated above the Ready LED on the front face of the Micrologic trip unit The table below uses 2 examples to illustrate the comparison of the phase and neutral currents with the activation limit value of the Ready LED Micrologic 5 2 Trip Unit 40 A Rating 3 Pole Micrologic 5 3 Trip Unit 400 A Rating 4 Pole The limit value is 15 A The limit value is 50 A 8 balanced phases third phase is zero The current intensity in the other 2 phases is zero This limit value can correspond for example This limit value corresponds for example e Either to the sum of the 5 A phase current intensities e Either to the sum of the three 15 A phase current intensities and a 5 A neutral current intensity Orto 7 5 A in 2 phases the current intensity in the Orto 25 Ain 2 phases the current intensity in the third phase and in the neutral is zero Orto 15A in one phase if the circu
157. rrent I t over the time interval T is identical to that created by a constant current Ith over the same interval This current Ith represents the thermal effect of the current I t over the interval T If the period T is infinite the current I th represents the thermal image of the current Calculation of the demand value according to the thermal model must be always be performed on a sliding metering window NOTE The thermal demand value is similar to an rms value NOTE Old measuring apparatus naturally display a type of thermal response for calculating demand values Arithmetic Demand Value The arithmetic demand value model represents the consumption of electricity and the associated cost Calculation of the demand value according to the arithmetic model can be performed on any type of metering window Demand value peaks The Micrologic E trip unit indicates the maximum value peak reached over a defined period for e The Demand values of phase and neutral currents e The Demand values of the total powers active apparent and reactive The demand values are organized into 2 groups see Real Time Measurements page 75 e Current demand values e Power demand values Resetting demand peaks The peaks in a group can be reset for the group via the communication option or on the front display module FDM121 LV434104 09 2009 79 The Metering Function Power Metering Micrologic E Presentation The Micrologic E t
158. rrow indicates expressed as a 96 of the average motor current the lunbal parameter The down arrows indicate the 3 phases tunbal Phase unbalance protection time delay value S The up arrow indicates the tunbal parameter ljam Jam motor protection pick up value if OFF is A The up arrow indicates indicated jam motor protection is not active the ljam parameter The down arrows indicate the 3 phases tjam Jam motor protection time delay value S The up arrow indicates the tjam parameter Ig Ground fault protection pick up value A The up arrow indicates the Ig parameter The down arrows indicate the 3 phases tg Ground fault protection time delay value S The up arrow indicates OFF is always indicated the t inverse time curve protection function is not available on Micrologic 6 E M trip units the tg parameter LV434104 09 2009 33 Using Micrologic Trip Units Micrologic 6 E M LSIG Protection Parameter Setting Screens Mode Description of Screens Unit Up Down Arrows Pa Ir Long time protection pick up setting for the 3 phases A The up arrow indicates ord Preset by a dial the Ir parameter The down arrows indicate the 3 phases Cl Selection of the long time protection trip class S The up arrow indicates the Cl parameter Y Choice of type of ventilation Auto Natural ventilation by the motor active e Moto Forced ventilation by a dedicated motor active The up arrow indicates
159. s without display e Micrologic 5 and 6 trip units with display Description of the Micrologic 1 and 2 Trip Units Micrologic trip units are grouped by application A distinction is made between distribution and motor applications e Inthe distribution application Micrologic 2 trip units are adapted to protecting conductors in commercial and industrial electrical distribution e n the motor application e Micrologic 1 3 M trip units are adapted to short circuit protection of motor feeders e Micrologic 2 M trip units are adapted to protecting motor feeders on standard applications The thermal trip curves are calculated for self cooled motors The class is set via dials The Micrologic 1 and 2 trip units are described in the Compact NSX circuit breakers User manual gt 7308 gt 90 205 5 EA a5 s o E Q x9 Micrologic 2 2 3 olg arol ES Micrologic 2 2 M z E z lo Ir Isd 1i 3000A Ir Clas isd li 3300A 140 169 475 oa P 96 AES 155 0 185 i ag pas En ar uic i Ro e e e Class to 225 92 98 2 a i 120 210 s no s n2 ia 100 Vu 9 45 10 i 100 220 n UE A xlo xir dr isd A xir Ar 72r sd Micrologic 2 2 100 A trip unit Micrologic 2 2 M 220 A trip unit 10 LV434104 09 2009 Using Micrologic Trip Units Description of the Micrologic 5 and 6 Trip Units Micrologic trip units 5 and 6 are designed to provide multiple functions e Protecting the electrical distribution system or s
160. scroll bar for presetting e Right hand scroll bar for fine tuning The RSU software monitors the parameter setting ranges and prohibits setting anomalies for example if the pick up threshold is set below the drop out threshold for an alarm with a superiority condition the software sets the thresholds to the same value by default Parameters which have not been set remain at their default value except that modification of the value by the RSU software is mandatory to avoid any anomalies For more details on the list of alarms the setting ranges and default settings see Detailed Tables of Alarms page 110 Under the Alarms tab Step Action 1 Double click on the alarm in the Alarms tab 2 Modify the parameters in the dropdown list in the Alarm setup screen 3 Set the drop out threshold value and time delay if present in the Drop out value and Drop out delay windows using the scroll bars 4 Confirm by clicking OK the new alarm parameters appear in the right hand side of the dropdown list Under the Alarms tab Step Action 1 Double click on the alarm in the Alarms tab 2 Select none from the dropdown list in the Alarm setup screen 3 Confirm by clicking OK none appears in place of the alarm in the dropdown list 126 LV434104 09 2009 The RSU Parameter Setting Software Setting the SDx Module Output Parameters Presentation All alarms on a trip failure a
161. select the measurement to be displayed on screen The associated navigation arrows indicate the navigation options e e possible to press the key e possible to press the amp key e ENDS possible to press one of the 2 9 keys e Forthe current and voltage measured quantities the navigation key Q2 can be used to select the metering screen for each of the phases e The down arrow indicates the phase relating to the measurement value displayed Examples Quantity measured on phase 2 N 4 Zs sc a Quantity measured on all 3 phases N 4 Zs ac e Press the G gt key successively to scroll through the metering screens Scrolling is cyclical Example of Measurement Readout Micrologic E The table below gives the readout values of the 3 phase currents the phase to phase voltage V12 and the total active power Ptot Step Action Using Display 1 Select the Instantaneous co TENE CREE T NETTES measurement readout mode the most heavily loaded phase is displayed Read the value of current I2 N 1A 2 B 3 C IF 2 Select the next current c measurement current I3 Read the value of current I3 Ir tr isd tsd li xin 3 Select the next current c measurement current I1 Read the value of current I1 Ir tr isd tsd li xin N 1A 2 B 4 Select the phase to phase voltage ec V12 measurement Read the value of voltage V12 Ir tr isd tsd li xin N 1A 2B 5 Select the Ptot p
162. selection e The ESC key has no effect LV434104 09 2009 145 Operating Assistance Quick View Menu Presentation Navigation The Quick View menu presents the information essential for operating the device connected to the front display module FDM121 divided into a number of screens The number of available screens and their content depend on the device connected to the front display module FDM121 For example with Compact NSX circuit breakers they depend on e The type of Micrologic trip unit A or E e The number of circuit breaker poles 3 pole or 4 pole e The presence of options ENVT or ENCT The screen number and number of available screens are indicated in the top right hand corner of the display Navigation within the Quick View menu is as follows e The and V keys are used to go from one screen to another e The ESC key is used to return to the main menu e The key is used to modify the display mode Example of Screens in the Quick View Menu The table below shows screens 1 to 7 of the Quick View menu for a Compact NSX 4 pole circuit breaker equipped with a Micrologic E trip unit Screen Description Screen 1 in the Quick View menu displays ETE 17 e The name of the IMU Aircon FDR on the screen example opposite I The name of the IMU defined with RSU can be up to 45 characters long but only the Y Open first 14 characters are visible on the front display module FDM121 B
163. ses Ir IN Long time protection pick up value for the neutral A The up arrow indicates 4 pole or 3 pole trip unit with ENCT option and active the Ir parameter neutral protection The down arrow indicates the neutral tr Long time protection time delay value at 6 Ir S The up arrow indicates the tr parameter Isd Short time protection pick up value for the phases A The up arrow indicates the Isd parameter The down arrows indicate the 3 phases Isd IN short time protection pick up value for the neutral A The up arrow indicates 4 pole or 3 pole trip unit with ENCT option and active the Isd parameter neutral protection The down arrow indicates the neutral tsd Short time protection time delay value S The up arrow indicates The time delay is associated with the I t inverse time the tsd parameter curve protection function e ON I t function active e OFF t function not active li Instantaneous protection pick up value for the phases A The up arrow indicates and the neutral 4 pole or 3 pole trip unit with ENCT the li parameter option and active neutral protection The down arrows indicate the 3 phases An Neutral declaration 3 pole trip unit with ENCT option ve a e N Neutral protection active noN Neutral protection not active LV434104 09 2009 29 Using Micrologic Trip Units Micrologic 5 LSI Protection Parameter Setting Screens Mode Descrip
164. t OFF It ON t s t s NS800N Micrologic 5 0 A 800 A NS800N Micrologic 5 0 A 800A gG 250A gG 250A A I A Total discrimination between the protections is provided by using the I t ON function on the short time protection 44 LV434104 09 2009 The Protection Function Instantaneous Protection Presentation Instantaneous protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution application against very high intensity short circuit currents It is identical for Micrologic 5 and 6 trip units Operating Principle Instantaneous protection is definite time It can be configured as li pick up and without a time delay Tripping curve t4 gt li No Parameter Description In Trip unit setting range The maximum setting corresponds to the trip unit In rating 6 li Instantaneous protection pick up Setting the Instantaneous Protection The li pick up can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software li Pick Up Setting Value The li pick up setting value is expressed in multiples of In The default li pick up setting value is 1 5 In minimum value The table below shows the setting ranges and steps according to the Micrologic trip unit In rating Trip Unit In Rating Setting Range Step 100 A and
165. teady state diagrams II and III White Not active Green Active e The current unbalance does not fall below the lunbal pick up before the end of the tunbal time delay the phase unbalance protection trips The behavior of the protection differs according to the motor operating conditions e During startup diagram l A Activation of startup B Activation of protection time delay as soon as the pick up threshold is crossed C Protection tripped at the end of the fixed time delay of 0 7 s e In steady state diagram II A Activation of startup B Activation of protection time delay as soon as the pick up threshold is crossed C Protection tripped at the end of the adjustable time delay e The current unbalance falls below the lunbal pick up before the end of the tunbaltime delay the phase unbalance protection does not trip diagram Ill e B Activation of protection time delay as soon as the pick up threshold is crossed e D Deactivation of protection NOTE The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option page 57 Setting the Protection The lunbal pick up and the tunbal time delay can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software lunbal Pick Up Setting Value The lunbal pick up setting value is expressed as a of the average current The pick up setting range on the keypad is 10 40 Th
166. ted Failure to comply with this principle inhibits setting the short time and ground fault protection time delays Example of a Multi Source Distribution If a number of circuit breakers are installed upstream as with multi source distribution the same principles apply A downstream circuit breaker must be connected to all the circuit breakers installed directly upstream as follows e All the commons outputs Z1 inputs Z2 are connected to one another e Output Z2 is connected simultaneously to inputs Z3 and or Z4 and or Z5 of all the trip units on the circuit breakers installed upstream NOTE Management of this configuration does not require any additional relays to ensure the ZSI function is controlled according to the sources in service 52 LV434104 09 2009 The Protection Function Characteristics of the Pilot Wire Connection The table below indicates the characteristics of the inter device pilot wire connection to upstream devices Characteristics Values Impedance 2 7 Q per 300 m Maximum length 300 m Type of cable Shielded twisted Belden 8441 or equivalent Permissible conductor cross section 0 4 2 5 mm Interconnection limit on inputs Z3 Z4 and Z5 15 devices to downstream devices Interconnection limit on outputs Z1 and Z2 5 devices NOTE When using the Compact NSX ZSI function with circuit breakers in the Masterpact and Compact NS ranges an RC filter reference LV434
167. ted with measurements These counters are reset if the alarm is reconfigured One counter indicates the number of operating hours This counter is updated every 24 hours 4 counters are assigned to the load profile Each counter counts up the number of operating hours per loading section for example one counter indicates the number of operating hours for the loading section 50 79 of In 6 counters are assigned to the temperature profile Each counter counts up the number of operating hours per temperature section for example one counter indicates the number of operating hours for the temperature section 60 74 C Maintenance counters are used to enter quantitative information about operations performed on the Micrologic trip unit for example number of push to trip tests etc or the status of the Micrologic trip units for example number of Err screens number of protection parameter setting lock unlock operations etc One counter indicates the amount of wear on the circuit breaker contacts as a When this figure reaches 10096 the contacts must be changed LV434104 09 2009 158 Operating Assistance 154 LV434104 09 2009 Appendices LV434104 09 2009 155 156 LV434104 09 2009 Additional Characteristics A Aim This chapter reproduces the tripping and limitation curves from part E of the Compact NSX 100 630 A Catalogue What s in this Chapter This chapter contains the foll
168. text of this manual only the functions relating to setup of the Micrologic trip unit and the SDx and SDTAM modules are described For more information on all functions in particular configuring the BSCM module option the Modbus communication interface option and passwords see the RSU Software Online Help LV434104 09 2009 119 The RSU Parameter Setting Software Saving and Printing The different settings and data can be saved and printed 120 LV434104 09 2009 The RSU Parameter Setting Software Protection parameter setting Presentation The protection parameter settings can be accessed using the RSU software under the Basic prot tab default tab A Micrologic RSU C MicrologicWtility RSU_A Data New rsa aE File Remote functions Setup Live update Help Micrologic selection h Distibution v Mictologic62E P inf2s0 z jec z Schneider d Electric P N LV431506 v Service Basic prot IH Alarms F Outputs Hf Breaker 0 Interface Ir tr isd tsd li lg tg N 250 4 0500s 375A 0000s 375A 50A 0000s OFF Tsin 6l 15r Poff 1 5sin 0200dn Ftoff Protection parameter setting The RSU software screen is exactly the same as the front face of the trip units the setting and navigation principles are identical to those described in the Readout Mode page 20 and Setting Mode page 24 chapters NOTE Access to the settings is only possible when the p
169. the Y parameter Isd Short time protection pick up setting for the 3 phases Isd Ir The up arrow indicates the Isd parameter The down arrows indicate the 3 phases lunbal Phase unbalance protection pick up setting expressed as a of the average motor current The up arrow indicates the lunbal parameter The down arrows indicate the 3 phases tunbal Phase unbalance protection time delay setting S The up arrow indicates the tunbal parameter ljam Jam motor protection pick up setting if OFF is Ijam Ir The up arrow indicates indicated jam motor protection is not active the ljam parameter The down arrows indicate the 3 phases tjam Jam motor protection time delay setting S The up arrow indicates the tjam parameter Ig Ground fault protection pick up setting lg In The up arrow indicates Preset by a dial the lg parameter tg Ground fault protection time delay setting S The up arrow indicates the tg parameter The down arrows indicate the 3 phases 34 LV434104 09 2009 The Protection Function Aim This chapter describes the protection function of Micrologic 5 6 and 6 E M trip units What s in this Chapter This chapter contains the following sections Section Topic Page 2 1 Electrical Distribution Application 36 2 2 Motor Feeder Application 54 LV434104 09 2009 35 The Protection Function 2 1 Electrical Distribut
170. tion of Screens Unit Up Down Arrows Pa Ir Long time protection pick up setting for the phases A The up arrow indicates ord Preset by a dial the Ir parameter The down arrows indicate the 3 phases tr Long time protection time delay setting S The up arrow indicates the tr parameter Isd Short time protection pick up setting for the phases Isd Ir The up arrow indicates Preset by a dial the Isd parameter The down arrows indicate the 3 phases tsd Short time protection time delay setting S The up arrow indicates Activation of the I t inverse time curve short time the tsd parameter protection e ON t inverse time curve active e OFF It inverse time curve not active IN protection pick up setting for the neutral 4 pole or 3 IN Ir Thedownarrow indicates pole trip unit with ENCT option and active neutral the neutral protection li Instantaneous protection pick up value for the phases li In The up arrow indicates and the neutral 4 pole or 3 pole trip unit with ENCT the li parameter option and active neutral protection The down arrows indicate the 3 phases Activation of neutral declaration 3 pole trip unit with M ae ENCT option N Neutral protection active noN Neutral protection not active 30 LV434104 09 2009 Using Micrologic Trip Units Micrologic 6 LSIG Protection Parameter Readout Screens Mode Description of Screens Unit Up Down Arrows p Ir
171. tion tripping range is 1 05 1 20 Ir according to standard IEC 60947 2 The default Ir pick up setting value is In maximum dial position The table below shows the Ir pick up value preset on the dial In Rating Preset Values of Ir A Depending on the Trip Unit In Rating and the Dial Position 40A 18 18 20 23 25 28 32 36 40 100A 40 45 50 55 63 70 80 90 100 160A 63 70 80 90 100 110 125 150 160 250A 100 110 125 140 150 175 200 225 250 400A 160 180 200 230 250 280 320 360 400 630 A 250 280 320 350 400 450 500 570 630 The accuracy range is 5 20 Fine tuning is performed on the keypad in steps of 1A e The setting range maximum is the preset value displayed by the dial e The range minimum is 0 9 times the minimum preset value for the 400 A rating the setting range minimum is 100 A or 0 625 x Ir Example A Micrologic 5 2 trip unit rated In 250 A is preset by the dial at 140 A e The minimum preset value is 100 A e The fine tuning range on the keypad is 90 140 A tr Time Delay Setting Value Thermal Image The setting value displayed is the value of the trip time delay for a current of 6 Ir The default tr time delay setting value is 0 5 minimum value i e 0 5 seconds at 6 Ir The table below shows the value of the trip time delay in seconds according to the current in the load for the setting values displayed on screen Current in the Loa
172. tivating the SDTAM module power supply 58 LV434104 09 2009 The Protection Function Long Time Protection Presentation Long time protection on the Micrologic 6 E M trip unit is adapted to protecting all types of motor application against overload currents Operating Principle Long time protection is I t IDMT e It incorporates the motor thermal image function e It can be configured as the Ir pick up and as the trip class Cl Tripping 60 320A A t curve 30s 20s 4 10s 1 3 5s l No Parameter Description 0 In Trip unit setting range The maximum setting corresponds to the trip unit rating In 1 Ir Long time protection pick up 2 Cl Long time protection trip class according to standard IEC 60947 4 1 NOTE The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option page 57 Setting the Long Time Prote ction The Ir pick up can be set as follows e On the Micrologic trip unit preset by the Ir dial and fine tuned on the keypad e Via the communication option using the RSU software preset by the Ir dial on the Micrologic trip unit and fine tuned via the RSU software The trip class Cl can be set as follows e On the Micrologic trip unit set on the keypad e Via the communication option using the RSU software LV434104 09 2009 59 The Protection Function Ir Pick
173. tor feeder applications e Output 2 is assigned to the ground fault indication SDG function LV434104 09 2009 127 The RSU Parameter Setting Software Assignment of an Alarm to an SDx Module Output The procedure for assigning an alarm to an SDx module output is as follows Step Action 1 Double click on the output Out1 or Out2 to be assigned M SDX SDX designation Assigned event Mode Delay s Long time prot Ir pon out SDX Out 2 Gound fault prot Ig An Output setup window appears Select the alarm to be assigned to the output from the Alarm dropdown list in the Output setup window The dropdown list contains all the alarms on a trip failure and maintenance event as well as the alarms associated with measurements activated in the Alarms tab see Alarm Setup page 125 Output setup Selected output SDX Out 2 Alarm OF operation overrun Mode M x If necessary select the output operating mode from the Mode dropdown list Output setup Selected output SDX Out 2 Alarm OF operation overrun Y Mode Time delay x Delay s 5 If necessary set the time delay 128 LV434104 09 2009 Operating Assistance Aim This chapter describes how to use the information and functions providing operating assistance for the electrical equipment available with Micrologic 5 6 and 6 E M trip units and the associated to
174. trip unit determines in real time the maximum MAX and minimum MIN value of the current for each phase reached for the current period 1 2 The Micrologic E trip unit determines in real time the maximum MAX and minimum MIN value reached by the following electrical quantities organized in groups for the current period 1 The groups of electrical quantities measured in real time are Current 2 Phase and neutral currents average currents and current unbalances e Voltage Phase to phase and phase to neutral voltages average voltages and voltage unbalances e Power Total power and power for each phase active reactive apparent and distortion e Total harmonic distortion The total harmonic distortion THD for both current and voltage e 1 Frequency 1 The current period for a group is initialized by the last reset of one the maximum values in the group see below 2 Micrologic A and E trip units also determine the maximum value MAXMAX of the maximum MAX values and the minimum MINMIN value of the minimum values MIN of the phase currents 76 LV434104 09 2009 The Metering Function Resetting Maximum Minimum Values The maximum and minimum values in a group can be reset for the group via the communication option or on the front display module FDM121 The maximum and minimum values in a group can be reset on the keypad via the menu see Peak Demand Values Reset page 22 for the following groups e Currents
175. ty levels 0 for the main screen 1 for the Outx screen and 2 for the internal failure Err screen The same acknowledgment sequence should be performed if the internal failure Err occurred before the voltage measurement Outx Indication of Correct Installation Operation Alarm Indication Screen Cause phase 2 The main screen displays the current value of the most heavily loaded phase Ir tr isd tsd li xln N WA 2B 3C Circuit breaker with SDx module option Screen Cause Outx An alarm configured on the SDx module in permanent latching mode has not been acknowledged see Acknowledgment of Latching Mode page 115 or the acknowledgment request is made when the alarm is still active Ir tr isd tsd li xln N WA 2 B 3 0 Check the cause of the alarm and acknowledge the alarm by pressing the c key twice validation and confirmation The main screen current value of the most heavily loaded phase is displayed LV434104 09 2009 133 Operating Assistance Indication of Faults With Micrologic 5 and 6 For more information on definitions of the fault protections associated with indications see Electrical Distribution Protection page 37 Screen Cause Breaking current Ir Tripped by long time protection Up arrow pointing to Ir breaking value displayed Ir tr isd tsd li xin N 1 A 2 B 3 0 Peak breaking current Isd Tripped by short time protection Up
176. ue The table below shows the setting values preset by a dial and setting ranges set on the keypad of the Isd pick up Type of Setting Value or Setting Range xlr Preset by a dial 1 5 2 3 4 5 6 7 8 10 Micrologic 5 Setting range on the keypad 1 5 1 5 2 1 5 3 1 5 4 1 5 5 1 5 6 1 5 7 1 5 8 1 5 10 Step 0 5 Ir 1 For Micrologic 6 trip units the setting range value on the keypad is 1 5 10 Ir The accuracy range is 10 tsd Time Delay Setting Value The table below indicates the setting values for the tsd time delay with the l t OFF ON option expressed in second s and the associated non tripping and breaking times expressed in milliseconds ms Parameter Value tsd with It OFF s 0 0 1 0 2 0 3 0 4 tsd with I t ON s 2 0 1 0 2 0 3 0 4 Non tripping time ms 20 80 140 230 350 Maximum breaking time ms 80 140 200 320 500 The default tsd time delay setting value is 0 s with l t OFF I t ON OFF Function The It inverse time curve function is used to improve circuit breaker discrimination It is particularly necessary when a protection device using inverse time only for example a fuse protection device is installed downstream Example The figures below illustrate an example of discrimination between a Compact NSX630 upstream and a gG 250 A fuse downstream calculation performed by the Ecodial software
177. ut can only be accessed with Micrologic 5 and 6 trip units For more information on measurements see The Metering Function page 73 Remote Readout of the Operating Assistance Information The operating assistance readout can only be accessed with Micrologic 5 and 6 trip units The following operating assistance information is made available e Protection and alarm parameter settings see The RSU Parameter Setting Software page 117 e History and tables of time stamped events see History and Time Stamped Information page 152 e Maintenance indicators see Maintenance Indicators page 153 Circuit Breaker Remote Control The circuit breaker remote control can be accessed by all Compact NSX circuit breakers equipped with a BSCM module and a communicating motor mechanism The following commands are made available via the communication network e Circuit breaker opening e Circuit breaker closing e Circuit breaker reset For more information refer to the Compact NSX circuit breakers User manual LV434104 09 2009 151 Operating Assistance History and Time Stamped Information History Micrologic trip units generate 3 types of history e History of alarms associated with measurements the last 10 alarms are recorded e History of trips the last 18 trips are recorded e History of maintenance operations the last 10 operations are recorded Time Stamped Information Time stamped information informs the user of all the
178. vation transitions 2 Alarm deactivation transitions The setting range for the time delay via the RSU software is 1 360 s By default the time delay setting is 5 s 114 LV434104 09 2009 Alarms Operation in Open or Closed Forced Mode In Open forced mode the output remains in the deactivated position irrespective of the alarm state In Closed forced mode the output remains in the activated position irrespective of the alarm state NOTE Both these modes can be used for debugging or checking an electrical installation Acknowledgment of Latching Mode Latching mode is acknowledged via the Micrologic trip unit keypad by pressing the key twice 1 2 3 4 Ir tr Isd tsd li xin Ir tr isd tsd li xin Ir tr isd tsd li xin N WA 2B XC N WA zB sc N VA 2B 3ic A Alarm Green when activated white when deactivated S Output High position activated low position deactivated Step Event Action Information on the Display 1 Alarm activation The message Out1 is displayed 2 Alarm deactivation The Outi message is still displayed 3 Acknowledgment of active position of the output press The message OK is displayed the key twice to confirm 4 The screensaver is displayed Special Features of Latching Mode If the acknowledge request is made when the alarm is still active e Acknowledgment of the output active position has no effect e Keypad navigation is possi
179. w the pilot wire is connected to the trip unit Q1 Q2 Q3 Q1 Upstream circuit breaker Q2 Circuit breaker to be wired Q3 Downstream circuit breaker Z1 ZSI OUT source Z2 ZSI OUT Z3 ZSI IN source Z4 ZSI IN ST short time protection Z5 ZSI IN GF ground fault protection Micrologic 6 Outputs Z3 Z4 and Z5 are only available on Compact NSX400 630 circuit breakers The short time and ground fault protection time delay settings Micrologic 6 for the protections managed by the ZSI function must comply with the rules relating to time discrimination Connection Principles The figures below show the options for connecting devices together Protection Connection Diagram Ground fault and short time protection Micrologic 6 Output Z2 of the trip unit on the downstream circuit breaker Q2 is connected to inputs Z4 and Z5 of the trip unit on the upstream circuit breaker Q1 Short time protection Output Z2 of the trip unit on the downstream circuit breaker Q2 is connected to input Z4 of the trip unit on the upstream circuit breaker Q1 Inputs Z3 and Z5 must be short circuited Ground fault protection Micrologic 6 Output Z2 of the trip unit on the downstream circuit breaker Q2 is connected to input Z5 of the trip unit on the upstream circuit breaker Q1 Inputs Z4 and Z3 must be short circuited NOTE When the ZSI function is not used downstream inputs Z3 Z4 and Z5 must be short circui
180. y The LCD display provides all the information needed to use the trip unit The list of protection parameters is customized according to the Micrologic trip unit type 5 6 or 6 E M eo s N T 21B 3i L l 8 No Description 1 5 pictograms how these are combined defines the mode Xx Metering Readout Protection parameter Setting g Locking Up arrow pointing to protection parameter currently being set List of protection parameters according to the Micrologic trip unit type e Micrologic 5 Ir tr Isd tsd li xln e Micrologic 6 Ir tr Isd tsd li xin Ig tg Ir Cl e amp amp isd lunbal tunbal lam tjam lg tg Micrologic 6 E M Value of the measured quantity Unit of the measured quantity Navigation arrows Down arrow s pointing to the selected phase s neutral or the ground iN oO on A Phases 1 A 2 B 3 C neutral N and ground Display Backlighting When the trip unit is powered by an external 24 V DC power supply the Micrologic trip unit display has white backlighting that is e Low intensity continuously e High intensity for one minute after pressing one of the keys on the keypad The display backlighting is e Deactivated if the temperature exceeds 65 C e Reactivated once the temperature drops back below 60 C If the trip unit is powered by the pocket battery module the display unit is not backlit 16 LV434104 09 2009 Using

User manual 09/2009 - Schneider Electric

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