Varlogic NRC12
Contents
1. 1 Example 20 kV 50 60 Hz N OVAOEC AM 06 gt 001 uonoeuuoo ON U 1202 OANA NA gt os N N lt Je9 CLOUN 1910409 203084 J9MOd Z pue Se sdejs jo uonoeuuo2 oDeyoA J V OL 8 4 Figure 19 HV use of the controller 39 Power Factor Controller NRC12 USER S MANUAL 7 Options 7 1 External Temperature Sensor The controller has terminals T1 T2 for external temperature sensor With the external temperature probe the temperature in a critical point in a capacitor bank can be monitored with the controller The external temperature measurement overrides the internal temperature in fan and alarm monitoring The External Temperature Sensor can be purchased as an option and installed into the capacitor bank Do not touch the connectors when the controller is energized make sure that the operating voltage is disconnected before touching any parts located on the rear side of the controller 7 2 Controller Communication Adapter The controller is equipped with a communication port to connect the controller to a remote master The communication connector is covered to ensure electrical safety during the operation of the controller The Controller Communication Adapter CCA 01 can be purchased as an optio2. User Break Yes Error messages Result screen Browse AG Browse 1 7 Taken into service Figure 12 Manual setup of parameters 23 Power Factor Controller NRC12 USER S MANUAL 5 7 Measurement Menu The measurement menu contains the most common measurements taken from the network This is a read only menu only the selection on some displayed measurements is possible Startup after commissioning nsn a AUTO SETUP 7 y anun SETUP T vd 0 98 Hi MEASUREMENTS F m ce Er PARAMETERS 1243445 6 7 9 ifiiie MEAS 69 OVERVIEW Alarm List woe 2 Hunting 4L Uolt 2 Temperaire THDIU m ic Previous harmonic 2 THOU Next harmonic Reset alarms Alarm log Alarm Log CURRENT J 2 Hunting 3 9 Over Temperature 2 41 Voltage POWER 1 4L ow Voltage TEMPERATURE STEP USAGE A 1 3 Previous screen Next screen Figure 13 Measurement menu Measurement Explanations Screen Description Alarm List List of detected alarms Active alarm Log of 5 latest alarms Alarm log can be cleared using _ Clear Alarm Log function in Maintenance menu Input voltage Vi Line to Line or V N Line to Neutral 8 Reactive power
3. 13 Power Factor Controller NRC12 USER S MANUAL 5 Menu Operations 5 1 General Navigation between different menu levels As a precaution against accidental use the access of certain menus has been protected by a keylock which is a special sequence of keystrokes enabling the use the particular menu item Code lock is automatically closed after the home delay 5 minutes from last keystroke Keylock Type 1 Lode Lock Enter code to open lock Press 4 and v simultaneously for 2 seconds d Lode Lock Enter code open lock prc ee a eS eee 1 55 4 and v simultaneously for 2 seconds Then Figure 4 Entering submenu with keylock 2 Press v and simultaneously for 2 seconds 14 Power Factor Controller NRC12 USER S MANUAL Adjusting a value Single parameter editor To editor Increase Previous value Adjustment done Cancel lt Save the value adjustment Decrease Next value Multiparameter editor Previous Item ILC gt enter lt I L bol Adjustment done Cancel Save the values Next value adjustment Next Item Figure 5 Adjusting a value For faster increasing decreasing hold the button down
4. AS U9 IMS HJO NO T yueg eqoJd ejnjeJeduig lt uonoeuuoo oN LN L93N 19 o1JUuo9 1040 4 ISMNOd OL gH LH 94 ZL pue yum Se 64916 jo uon59uuoo 10 Figure 1 1 Controller connection example Line to Line LL Z deis deis 0 71 05 10328 J e re USER S MANUAL Power Factor Controller NRC12 LOAD soo JO 2 99 9S ee 4 N Gi e e e e e cm VOL Yous 440 NO yueg eqoud oJnjeJeduJoa BUJ9 X3 uonoeuuoo oN nm uU 4400 SNP vU 66 lt CLOUN 1910 9 2002 4 JOMOd ZL pue Se Z 64916 Jo 400 50 60 Hz Figure 1 2 Controller connection example Line to Neutral LN 11 Power Factor Controller NRC12 USER S MANUAL 3 Display The controller is equipped with
5. 24 Power Factor Controller NRC12 USER S MANUAL Screen ttem Description O VUL TAGE d Input voltage Vi Line to Line or Line to Neutral and voltage limits If nominal value is not standard graphical display is in 9o scale Total harmonic distortion of voltage and alarm limit for it components components Capacitor overload factor measured current ratio to nominal current at nominal voltage and alarm limit for it Active current of CT primary phase current Reactive current of CT primary Apparent current of CT primary Active power 3 phase total power Reactive power Apparent power Internal temperature fan limit and alarm limit External temperature only present if external temperature sensor connected Fs Number of step connections and usage hours Nominal value Alarm limit Alarm limit Y LL connection of voltage purum 3 90 110 130 1 4 Measured value Figure 13 2 Measured value and alarm limits Harmonic distortion Total harmonic distortion Wo 1 4 Values of selected harmonics 0 359 l i3l5H Keys for scrolling harmonics Figure 13 3 Graphs showing voltage harmonics Fan limit Alarm limit ALARH Int lt Fan 1 44 lt Internal temperature Au 4872 4 External temperature only present if external temperature gt xt sensor
6. OLF arame lE S vxore T _ Fi E SERO IERI a 5 0 Manual Setup or Parameters necant ed rect dra umu ai eger c c i Rd Di Measurement MEMU ux OI abate ISIS seus titer tant mue RO S O Alas Melle stc LO Mamtenance MeN VISCO AN COWS Wee 0 8 a1 DOl aM Q uuu y u uuu us 6 2 Manual calculation of response of NRG 2 hs x uu RE s o ue s amu ud ODIO eT Temperature SelsOlnse Lu a rte o s n Da DP Xu u cu 7 2 Controller Communication Adapte RD GOSS ANY eiaa aa 9 reehnpical ima W Power Factor Controller NRC12 USER S MANUAL 1 General 1 1 Safety The following precautions must be taken into account when installing and operating the controller The installation of the controller must be performed by a qualified electrician Do not touch the connectors when the controller is energized make sure that the operating voltage is disconnected before touching any parts located on the rear side of the controller Do not open a live current cir
7. Using controller help At any time pressing provides information and browsing help for the current controller screen Language Language selection far menus and ki choose accept the value and the next parameter Figure 6 Using controller hel 15 USER S MANUAL Power Factor Controller NRC12 5 2 Main Menu The main menu contains all basic submenus required to set up and operate the controller Which menu to choose Autorun Autorun Autorun Autorun Autorun Autorun Autorun N t a S ie ot 2 9 5 x _ 4 e 4 5 58 lt c O HE cer xr nem gt Z L v eo E EE 9 5 ot a o a 0 2 T E H7 SE t 2 5 N 2 5 e oj G Ze 5 e cs 5 1 3 J 5 5 c m 7 lt No Yes required 2 For specialist Figure 7 Required skills and menu selection If bank preconfiguration is properly done commissioning does not require any special skill 16 Power Factor Controller NRC12 Figure 8 Main menu USER S MANUAL 1 Bank pre configuration When factory settings have not been changed this menu provides the means of pre conf
8. Alarm parameter explanations Description ACT Alarm active and triggered PAS Alarm passive ENABLED Alarm ON DISABLED Cannot cause an alarm under any conditions The other settings of the alarm have no effect For alarms 2 9 amp 10 ON Bank shut down in case of alarm OFF lt No shutdown Alarm detection limit for alarms 9 10 amp 11 5 10 Maintenance menu The maintenance menu provides useful information about the usage of the bank capacitors and contactors Also some auxiliary settings have been provided CAUTION This menu access is dedicated to specialists 31 Power Factor Controller NRC12 USER S MANUAL 4 MAIN MEHU MANUAL SETUP T HEASURFEHEHTS 4 PARAMETERS gt ALARMS 1 To Keylock type 2 Controller Info F Discard value Temp Limits gt Step Usage gt AX s Browse steps Clear all step info 22 Clear current step info Clr Alarm Log Cancel Bank Test Accept Factory Config OVERVIEW Clear Stats Alarm Log Return to menu Figure 16 Maintenance menu Maintenance explanations Screen lem Display for fan temperature limit If external temperature sensor is installed fan is controlled by external temperature Con
9. Table 1 Stack program Operation sequence 1 1 1 1 Step Step number Step Step number demand 1 2 3 4 5 6 demand 1 2 3 4 5 6 X X X XIX __ S XS l X XIXIX Table 3 Circular A program Operation ore E Table 4 Circular B program Operation sequence 1 2 2 Comparison between normal and optimal program Normal program will reach the cos target value by successive connection disconnection of capacitors corresponding to the smallest step value Optimal program will reach the target cos value by successive connection disconnection of capacitors corresponding to the highest relevant and available step value 34 Power Factor Controller NRC12 USER S MANUAL Optimal Stepping Programm Uncompensated reactive power Compensated reactive power Q 4 Step sizes 1 2 4 4 Connection of steps Steps on Steps on 1 4 4 4 4 1 Steps 4 1 4 Disconnection of steps 4 Normal Stepping Programm 1 Step sizes 1 2 4 4 Q T2 4 4 T T ET m NENNEN RS m Stepson SSS 2 4 Steps on Steps 4 4 4 4 4 1 Figure 17 Regulation example Optimal vs Normal 35 Power Factor Controller NRC12 USER S MANUAL 6 2 Manual calculation of response value Normally the response value more generally known as the C K value is set automatically as a part of the Auto Setup sequence but there are cases when these values must be entered
10. o e x lt N Qoo mulso N O IN 00 a IN olaola 5 IN N C2 N Co Co N N Co N N N N N Q2 C N x N RT IN UN Lj EE cO N gt OO O gt G O IN IO N C Table 5 C K values for 400 V network The reactive power between limits corresponding to response value is adjusted by successive connections or disconnections of steps 36 Power Factor Controller NRC12 USER S MANUAL P Effect of one step Compensated 4 power Uncompensated power Inductive C K Capacitive C K Target cos o Capacitive C Inductive C K Inductive target Capacitive target COS COS Figure 18 Compensation example and consequences 37 Power Factor Controller NRC12 USER S MANUAL 6 3 High voltage application of NRC12 CAUTION case of installation in a HV bank with VT you must adjust the default factory settings The reconnection delay must be
11. manually The correct value can be calculated using an equation requiring the 1 step size in vars line to line voltage of the network used in volts and the CT ratio as follows 2 ___ I 5AxU x43 where size of 1 step vars Ui line to line voltage in volts L 5A CT ratio alternative Alternatively the C K value can be taken from the table below valid for 400 V networks CT n1 n2 60 80 1001 120 160 200 300 400 500 600 00 300 400 500 600 800 1000 1500 2000 2500 3000 011 0300 23 018 15 0133 ST 0 36 0 27 0 220 180 4 0017 0 45 0 33 0 270 22 0 17 013 0 48 0 36 0 29 0 2410 18 014 0 10 0 60 0 450 360 30 023 048 0 12 J 10 7210 5410 43 0 36 0 27 0 22 014 0 11 0 90 0 68 0 54 0 450 34 0 27 0 18 0 14 0 11 0 96 0 72 0 58 0 48 0 36 0 29 0 19 0 14 0 12 0 10 0 90 0 72 0 60 0 45 0 36 0 24 0 18 0 14 0 12 87 0 7210 54 0 43 0 29 0 22 0 17 0 14 1 08 0 90 0 68 0 541 0 36 0 27 0 22 0 18 1 30 1 08 0 81 0 65 0 43 0 32 0 26 022 _ 1 44 1 20 0 90_0 72 0 48 0 36 0 29 0 24 _ 1 73 1 44 1 08 0 87 0 58 043 0 35 029 _ 1 80 1 35 108 0 72 0 54 043 036 11 80 1 44 0 96 0 72 0 58 048 X N gt ON Oo O gt NI 5
12. changed to a larger value e g 600 secs to prevent destruction of capacitors The controller can be used in HV networks if the following points are taken into account Connections must employ VT and CT with respect to the figure 19 The application menu has two voltage ranges for HV applications 0 5 50 kV and 10 400 kV The lower voltage range has finer VT ratio resolution and range than the higher voltage range Safety or reconnection delay must be adapted to the value of the discharge resistors of the capacitors the most usual value is 600 seconds 10 minutes The controller s default reconnection delay is adapted for LV use Using too short a reconnection delay may damage the capacitors Important the whole commissioning process must be performed using Parameter menu the commissioner should not use Bank Pre Configuration Manual Setup and Commissioning menus the use of Auto Setup menu is strictly forbidden to prevent capacitor destruction do not use Verify or Auto Seek on HV network applications 38 USER S MANUAL Power Factor Controller NRC12 LOAD c deis Jojo ede xny xnv deis xny xny 9 AH ZLOYN 490 013uU059 103238 J 19MO d
13. cos connection inputs K Fan and alarm i outputs L DIN rail mounting installation area M Controller Communication Adapter CCA 01 cover N Power Factor Controller NRC12 USER S MANUAL Side view Legend N DIN rail fixing spring O Air inlet for temperature measurement See Chapter 9 for technical details Power Factor Controller NRC12 USER S MANUAL 2 Installation The controller is designed for either panel cut out 138 x 138 or DIN rail installation It is locked to a panel by a side fitting springs or to the rail by a screwdriver operated fixing spring There are two ways of connecting the controller to the network Voltage LN Line Neutral CT on the same line phase as voltage measurement For LN wiring Voltage setting should be L1 N and Current setting should be L1 Voltage LL Line Line gt CT normally on the remaining phase normally phase L1 For LL wiring Voltage setting should be L2 L3 and Current setting should be L1 Separated inputs exist for measurement voltage U4 and and supply voltage OV and 110V 230V 400V The controller can automatically correct incorrect measurement connection when Auto Setup is selected from the main menu External temperature sensor can be installed close to the devices to be watched and connected to inputs T1 and T2 The cable used needs to be certified to national requirements relevant to controller installation voltage Alter
14. network applications Manual connection of steps for testing 2 digits containing correct message total counter 2 digits containing faulty message counter 2 digits containing replied message counter The use of controller s communication NONE Communication disabled READ Communication reads information READ RESET Communication reads information and resets alarms READ WRITE Communication reads and writes information 5 Modbus slave address of the controller Biss Bit rate used for data transmission Language selection of user interface 5 9 Alarms Menu In Alarms menu each individual alarm can be enabled or disabled Alarms 1 11 are enabled and alarm 12 is disabled as default Alarm screen also shows whether the alarm is active or passive Also some alarm triggering levels can be adjusted Disconnection of steps due to alarms 2 9 10 can be enabled or disabled from alarm settings Once an alarm condition is detected the corresponding alarm number is shown at the upper part of the display and the alarm symbol becomes visible The alarm relay is also activated Alarm indications can be reset in base display alarm dialog this clears all passive alarms If alarm condition is still active the alarm cannot be reset 29 Power Factor Controller NRC12 USER S MANUAL List of alarm descriptions and limits Alarm Alarm Description Limit limit adjustment No ee mmm inductive and
15. 0 26 Power Factor Controller NRC12 USER S MANUAL MAIN MENU 7 Code Lock AUTO SETUP m SETUP T MEASUREMENTS PARAMETERS m Keylock type 1 5 ANLE DET SUE RM RA IUD Dp EE MC URN EE Application Edit mode Choose parameter AY y Adjust value Accept value Transtormers Input Voltage Wiring Target Cos Resp Yalues Auto Seek Discard value Confirm GS 2 Delays step Program Step setup Step Setup A ME Fixed steps Verify Confirm Step Test Modbus Setup nEsR anguage Figure 14 Parameters Parameter Explanations Screen ltem 7 JjDescrption 0 0 common situation 4 quadrant application Power generation possible Application is forced to 4 quadrant in Auto Setup Network voltage range of application 2f Power Factor Controller NRC12 USER S MANUAL Screen lem Description iranstormers a Current transformer primary and secondary current Voltage transformer ratio Used if voltage range with VT selected Nominal input voltage reference value at input volt
16. 13 VA Supply voltages 110 V nominal range 88 130 V 230 V nominal range 185 265 V 400 V nominal range 320 460 V Relay inputs outputs 250V 2A Display Dot matrix display resolution 64 128 pixels backlighted Protection class IP41 front panel IP20 rear part Target cos range 0 85 ind 1 00 0 90 cap Response limits 0 01 1 99 symmetrical or asymmetrical Reconnection delay 10 900 s Response delay 20 of reconnection delay min 10 s Displayed measurements COS p heach lapp 5 14 5 THD U and voltage harmonics and current harmonics internal and external temperature Installation method Panel installation DIN rail installation Casing Impact resistant PC ABS UL94V 0 Operating temperature range 0 60 C Alarm log List of 5 last alarms Step counters Yes Fan control with dedicated relay Yes 250 V AC 8A Alarm relay Yes 250 V AC 8A Accuracy of FS 2 lo 2 U I samples 290 Phase 1 Distortion 3 dB up to 15 Internal temperature 3 External temperature 2 C option CT setting range 25 1 6000 1 or 25 5 6000 5 Power outage detection Reaction time 15 ms Standards IEC 61010 1 IEC 61000 6 2 IEC 61000 6 4 UL 61010A 1 IEC 60529 Communication Modbus protocol using CCA 01 option Schneider Elect
17. 2 quadrant 100 700 V 4 quadrant 10 400 kV VT Automatic search of C K response value Automatic Setup Sequence Bank Pre configuration Sequence Bank Test each step is automatically connected and disconnected in turn This facilitates testing of the operation of each capacitor step contactor To be used only for testing offline capacitors Do not use in HV network applications See also Step Test Modbus Setup Data transmission speed of the controller 1200 9600 38400 Resp Values Response value for the capacitive side of the target cos o Normally set up automatically by the controller Detected in Auto Setup and Auto seek or manually if wanted Checked with verify function See C K The controller has a connector for CCA communication module option Circular stepping program for sequence 1 1 1 1 1 1 Circular stepping program for sequence 1 2 2 2 2 2 Response value Can be manually set up or automatically searched by the controller 0 01 0 50 1 99 Clear Statistics Clear Alarm Log Commissioning Sequence T Target cos value 1 normally used 0 8ind 1 00 0 9cap Target cos value 2 selected by control input 0 8ind 1 00 0 9cap Current Transformer setting xxx 5 or xxx 1 25 1 25 5 1000 5 6000 1 6000 5 Wiring Example CT phase L1 Current connected to phase 1 Detected in Auto
18. Setup and Auto seek checked with verify function See also Installation chapter 2 L1 41 Power Factor Controller NRC12 USER S MANUAL Display Description Min value Default value Max value Current polarity selections DIRECT direct connection REVERSE inverted connection AUTO lt automatic polarity controller identifies polarity in 2 quadrant applications disabled in 4 quadrant AUTO Disconnection of steps in case of alarm ON OFF ON 9 OFF 2 10 External temperature Present only if external temperature sensor connected Restore Factory Settings Fan temperature offset adjustable Fan switch on limit is offset degrees lower than temperature limit 0 C 20 C 50 C Fixed steps each step can be manually fixed ON i or OFF 8 In search seek and verify functions a fixed step is always skipped and considered OK If 1 step is fixed search seek and verify functions are disabled A automatic Response value for the inductive side of the target cos o Normally set up automatically by the controller Detected in Auto Setup and Auto seek or manually if wanted Checked with verify function See C K Nominal input voltage reference value at input voltage terminals U and For voltage alarms 80V 400V 800V Internal temperature Capacitor overload factor Language Selection for menu
19. Varlogic NRC12 Power factor controller User manual a brand of Schneider Electric Power Factor Controller NRC12 USER S MANUAL Menu Structure First Startu Startup after reconfi uration Language selection Language selection gt Main Menu Main Menu 4 For bank builders Sequences Power Factor Controller NRC12 USER S MANUAL Startup after commissioning For experts Menus Power Factor Controller NRC12 USER S MANUAL Power Factor Controller NRC12 USER S MANUAL Table of Contents RR T UT EET iiv aspas 1527 En vironmehtal y e e eade us mde etr ua dut er dar a brisa e mtm u Hy ences E aS ar TEES 5 2 MENU nutri Pg e bubo oet a Rt a p wt 95 9 bank Pre contigulallQb uyu guys deed deme oes dime sau bana SAX COMMISSIONING s uu uuu susu u asa Laba uu 54 1 COMMISSIONING SEQUENCE dias a 94 2 EIS OT fert utu Dn E EU E MIU 9 5
20. a backlighted dot matrix display with a resolution of 128 x 64 pixels Essential indicators General Menu symbols Warning symbols Sequence U Low warning U No measurement voltage PIE Commissionin I Capacitive I _ Low warning Bank Preconfiguration Target Cos o 1 or 2 Manual Setup I W High warning Request up down AUTO Auto Setup Step off on Scrolling and editing symbols Measurements m Broken steps Up button functional 1 Fixed steps Down button functional Alarms Up and down buttons functional 50 Alarm active Maintenance Parameters A Arrows for menu selection T Locked menu Communication symbols Hra Read Ort Read Reset alarm Lir Read Write Alarm codes BASE DISPLAY Menu symbol ALARMS Request up To Alarm Handling To Measurement Menu Figure 2 Display layout and symbols 12 Power Factor Controller NRC12 USER S MANUAL 4 Start up Procedure Before connecting power check the wiring of all controller terminals Check carefully for correct operating voltage Selection of wrong voltage input can permanently damage the controller After the first power switch on the controller will automatically ask for the language setting of the menu Language ENGLISH CES EHGLISH F 4 FRANCAIS Figure 3 Language setting dialog At any time press
21. age terminals and Us For voltage alarms In VT application the secondary voltage is entered and the calculated primary voltage is displayed Location of voltage measurement L2 L3 L3 L1 L1 L2 L1 N L2 N or L3 N Detected in Auto Setup and Auto seek checked with verify function See also Installation chapter 2 Location of current measurement L1 L2 or L3 Detected in Auto Setup and Auto seek checked with verify function See also Installation chapter 2 Detected in Auto Setup and Auto seek checked with verify function DIRECT Normal polarity of current measurement REVERSE Inverted polarity of current measurement AUTO Automatic current polarity detection disabled in 4 quadrant applications Primary Target Cos normally used when control input is open 0 80 ind 0 90 cap Secondary Target Cos selected by closing relay input 0 80 ind 0 90 cap Symbol in Base Display shows the status of control relay C K value for inductive reactive power 0 01 1 99 Calculate using a formula or get from C K value table Detected in Auto Setup and Auto seek or manually if wanted Checked with verify function C K value for capacitive reactive power 0 01 1 99 Calculate using a formula or get from C K value table Detected in Auto Setup and Auto seek or manually if wanted Checked with verify function Automatic C K value seek connects and disconnects first step several times Do not use on HV network applicat
22. ally entered parameters comply with the network See Glossary chapter 8 for parameter definitions NOTE The use of Commissioning menu is forbidden on HV network applications MAIN MENU Code Lock JCOMHMISSIOHIHGT AUTO SETUP HM HUAL SETUP T 4 5 Keylock type 1 PARAMETERS M CMM NM NT M VC M Language gt OW Choose 2 Transformers Previous gt 2 Choose Next DO Hm Target Cos P Previous Adjust Next Bu EO Verify gt User Break 4 Yes Error messages Result screen Browse Browse G Taken into service Figure 10 Commissioning Power Factor Controller NRC12 USER S MANUAL 5 4 2 List of errors What to do in case of error Error codes can help you to identify a problem and make corrections Action to do Unstable network The controller is Enter the parameter settings unable to verify search parameters due manually using Parameters menu to excessive load variations on the Rerun the commissioning network sequence Step size too small The effect of the 1 Check wiring CT condition of step cannot be measured CT capacitor steps 1 step oversized wrong wiring inoperative steps Sequenc
23. at each step will eventually be the same The first step connected will be the first one to be disconnected and vice versa Then a circular sequence is followed In order to operate correctly the number of steps programmed into the controller must strictly comply with the number of physical steps See Table 3 d Circular 1 2 2 program 1 Circular Circular B program can be used on a bank whose step ratio is 1 2 2 2 The first step is used as tuning after the activating limit is exceeded The circular sequence starts with the 2nd step See Table 4 e Optimal Program The optimal program operates with many step configurations 1 1 1 1 1 1 2 2 2 1 1 2 39 1 1 2 4 4 1 2 2 2 2 2 3 3 3 1 2 3 4 4 1 2 3 6 6 1 2 4 4 4 1 2 4 8 8 The target cos power is reached using the fewest number of steps in minimal time Like the circular program this algorithm equalizes the usage of largest steps This program uses optimally selected step sizes when approaching the target power and at the same time the response delays are shortened particularly if there is a large requirement for compensation power or if the network suddenly becomes capacitive As circular program this stepping program keeps the usage of steps even Optimal program is disabled with fixed steps and vice versa 33 Power Factor Controller NRC12 USER S MANUAL Step Step number Step Step number demand 1 2 3 4 5 6 demand Table 2 Normal program Operation sequence 1 2 4 4
24. cuit this may cause dangerous overvoltages Always short circuit the current transformer CT before replacing or removing the controller installed in a bank Do not open the controller casing there are no user serviceable parts inside External computing devices connected to the communication connector of Power Factor Controller have to comply with the standard IEC 60950 1 For better understanding of the terminology used please refer to the Glossary chapter 8 at the end of this manual 1 2 Environmental conditions The controller is designed for the following environmental conditions Indoor use Altitude up to 2000 m Ambient temperatures within 0 60 Maximum relative humidity 80 percent for temperatures up to 31 C decreasing linearly to 50 percent relative humidity at 40 C Mains supply voltage fluctuations not to exceed 20 15 percent of the nominal voltage Transient overvoltage for the Mains supply according to installation categories 111 IEC 61010 1 Pollution degree 2 IEC 61010 1 Power Factor Controller NRC12 USER S MANUAL 1 3 Description Front view Legend A Display B Keys C Opening of door D Door E Mounting bracket for panel mounting installation Power Factor Controller NRC12 USER S MANUAL Rear view Legend F Step output connectors G Name plate H Mounting bracket for panel mounting installation Fixing spring for DIN rail mounting J Current voltage temperature sensor and target
25. e not found Step ratio does Check the condition and sizes of not match available step sequences steps Check the contactors and step wiring Step size too large The ratio of Check the condition and sizes of measured step compared with the 17 steps contactors step is too large Step sequence cannot be resolved Reserved Non relevant autosetup process with Use manual setup to confirm or this bank configuration correct the information obtained by autosetup Wiring verify error Controller wiring not Check the wiring of voltage and correct current inputs Check the Wiring setting from Parameters menu Step count verify error The Number of gt Check the Number of Steps setting Steps setting is incorrect Check the number of steps in the bank and the condition of steps Step sequence verify error The step Check Step Sequence setting size ratios differ from the selected step Check step sizes used in the bank sequence C K value verify error Check the response value used Check the size of 1 step in the bank Disconnected bank disables Verify and Search functions and Alarm with shutdown text will be shown in the Verify Search result screen 20 Power Factor Controller NRC12 USER S MANUAL 5 5 Auto Setup of Parameters The auto setup sequence is intended for inexperienced users so they can commission the bank with minimal prior knowledge The user need only input three of the most c
26. ence This menu item is a forced sequence meaning that all items must be accessed before the validation of the setup takes place The sequence can be interrupted by pressing Key See Glossary chapter 8 for parameter definitions In case of error in verification refer to error table page 20 NOTE The use of verification in Manual Setup of Parameters is forbidden on HV network applications 22 Power Factor Controller NRC12 USER S MANUAL a MEHU PRECOHF T AUTO SETUP T Code Lock SETUP T MEASUREMENTS PARAMETERS 7 65 Keylock type 1 5 iecit Application AY Previous Choose Next id 2 Transformers MAH gt Q0 F1 F2 Previous Adjust Next 4 Input Voltage 90 _ OQ lt MU ETE Wiring d Previous D Choose Next 4 Target Los NS OW Previous Nd Adjust O Previous gt Adjust Next 4 Resp Values MAH p gt Delays AG Adjust 4 Step Program gt OW LM Choose OG Step Setup MAH previous T Cancel Accept Ls Next PIE Verify y orifning
27. her programs and modification request are not then taken into account 1 1 1 1 1 1 1 1 1 1 1 1 1 2 4 8 8 8 Step Test each step can be manually connected and disconnected This facilitates testing of the operation of each capacitor step contactor See also Bank Test Number of step connections and usage hours Total Harmonic Distortion of Current Total Harmonic Distortion of Voltage Contains CT setup and VT setup in HV applications Uptime Power On Hours Cont Automatic verification of parameters Checks C K value steps and wiring In case of an error refer to error table page 20 Do not use on HV network applications 0 5 50 kV 10 400 kV Voltage Transformer ratio setting O 1 0 625 0 4000 Transformers Connections of voltage inputs Example Voltage phase L2 L3 Voltage connected between phase 2 and 3 Detected in Auto Setup and Auto seek checked with verify function See also Installation chapter 2 L2 L3 43 Power Factor Controller NRC12 9 Technical specifications USER S MANUAL Number of steps 12 Dimensions 155x 158 x 80 mm Frequency 50 Hz nominal range 48 52 Hz 60 Hz nominal range 58 62 Hz Measuring current 0 1A or 0 5A Measuring voltage 80 690 V nominal max 115 Displayed measuring power 100000 kVA Nominal power consumption
28. iguring the bank at the workshop After pre configuration this menu topic is replaced by 2 Commissioning by which the controller is taken into service 3 Automatic setup of parameters In the event that the controller has not been pre configured an inexperienced user can automatically set up all the characteristics of the bank and bring it into service 4 Manual setup of parameters In the event that the controller has not been pre configured an experienced user can manually set up all the characteristics of the bank and bring it into service 5 Measurement The measurement menu contains the most common measurements taken from the network and provides some information about the bank This is a read only menu 6 Parameters At any time an experienced user can access the most common operating parameters from this menu Unlike the configuration and setup sequences this is a menu allowing free and unrestricted entry into all its items and should be used when an occasional parameter access is needed 7 Alarm settings To show status and adjust the parameters of alarms 8 Maintenance The maintenance menu provides useful information about the usage of the bank capacitors and contactors Auxiliary settings and action have also been provided This menu is basically intended for use by the manufacturer s maintenance team 17 Power Factor Controller NRC12 5 3 Bank Pre Configuration USER S MANUAL This menu i
29. ions 10s 900s Reconnection delay and response delay Reconnection delay is used to protect the step capacitors don t use too short values Response delay the minimum time between changes in steps is defined as 20 9o of reconnection delay min 10 s The default value corresponds to capacitors with internal discharge resistors 50V 1 min Reconnection is faster when using Optimal step program Forced to Optimal in Auto Setup Normal suitable for step sequence 1 2 4 4 4 Circular 1 1 1 suitable for step sequence 1 1 1 1 1 Circular 1 2 2 suitable for step sequence 1 2 2 2 2 Stack suitable for step sequence 1 1 1 1 1 Optimal suitable for several step sequences checked with verify function Step sequence needed for optimal stepping program step size monitoring function and alarm 12 Detected in Auto Setup checked with verify function 28 Power Factor Controller NRC12 USER S MANUAL Screen Description I Step Size of first step at given voltage level next parameter 1kvar 400 for step size monitoring 0 7 step size monitoring disabled oee Alarms Menu chapter 5 9 Alarm 12 A Automatic default 0 Step fixed OFF 1 Step fixed ON Steps set fixed are not included in any automatic functions Fixed steps and Optimal Stepping Program cannot be used together EN Automatic verification of C K steps and wiring In case of an error refer to error table page 20 Do not use in HV
30. is connected Temperature values Figure 13 4 Temperature values and fan status 25 Power Factor Controller NRC12 USER S MANUAL 5 8 Parameters CAUTION In case of installation in a HV bank with VT you must adjust the default factory settings The reconnection delay must be changed to a larger value e g 600 secs to prevent destruction of capacitors The most common operating parameters can be accessed from this menu Unlike the configuration and setup sequences presented earlier in this text this is a menu allowing a free and unrestricted entry into all of its items and should be used when occasional parameter access is needed Restart the controller after major changes in parameters To start the step size monitoring set number of steps step sequence and the size of the 1 step reactive power and voltage initialize the measurement asked when exiting the editor If wanted set the alarm on from the alarm menu If the step size is set to O the step size monitoring is disabled Step size monitoring cannot be used when loads change constantly and rapidly if the 15 step is very small compared to total measurement scale if HV application is selected automatically disabled Fixed steps cannot be monitored or verified Setting 1 step fixed disables also search and seek functions See Glossary chapter 8 for parameter definitions In case of error in verifying refer to error table page 2
31. n and is installed into the controller according to installation instructions supplied with the CCA 01 Always switch off the power from the controller before installation Make sure that the communication connector is always covered either with CCA 01 adapter or the original cover before switching on the power Touching an uncovered connector with the power applied may lead to an electrical shock 40 Power Factor Controller NRC12 USER S MANUAL 8 Glossary Display information Description Min value Default value Max value Current too high 21 10x Inom Current too low All steps are disconnected in 2 quadrant application 0 025x Inom No Input Voltage Step Setup Size and voltage of 1 step the line line voltage of capacitor for step size monitoring 0 lt step size monitoring disabled oee Alarms Menu chapter 5 9 Alarm 12 kvar 200V kvar 400V 400 kvar 800V Mo The Modbus slave address of the controller 247 List of detected active A and passive alarms Reset clears passive alarms Log of 5 latest alarms Alarm Menu ACT Alarm active and triggered PAS Alarm passive Power flow and network voltage level of the capacitor bank 2 quadrant only power consumption typical situation 4 quadrant lt power generation possible Application is forced to 4 quadrant in Auto Setup 2 quadrant 100 700 V
32. native target cos can be controlled by using external relay contact connected between inputs o1 and 92 The cable used needs to be certified to national requirements relevant to controller installation voltage Caution For application in HV network look first at chapter 6 3 Control switch of capacitorbank switches the power to the controller In ambient temperature of 60 C the temperature class of connection wires must be at least 80 C Notes on installation A switch or circuit breaker shall be included in the building installation It shall be in close proximity to the equipment and within easy reach of the operator It shall be marked as the disconnecting device for the equipment An equipment switch or circuit breaker employed as a disconnecting device shall comply with relevant requirements of IEC 60947 1 and IEC 60947 3 Overcurrent protection devices such as fuse or miniature circuit breaker with a rating of no more than 10 A shall be connected in supply conductors The overcurrent protection devices need to be certified to national requirements Z deis deis Joy ede 0 1 ZL23 IN 1 2 9 1037964 x soo 10 _ U91IAS 199 S LOAD USER S MANUAL Power Factor Controller NRC12 N I t N 1 LO e 2 e e e L1 MOL
33. nections of steps usage hours display and possibility of clearing Each step is automatically connected and disconnected in turn This facilitates testing of the operation of each capacitor step contactor To be used only for testing offline capacitors Do not use on HV network applications Restore controller factory settings 32 Power Factor Controller NRC12 USER S MANUAL 6 Miscellaneous 6 1 Stepping programs The controller s algorithm will try to reach the target cos inside a tolerance area dependant upon the C K value figure 18 It reaches the value by switching on or off available relevant steps The regulation program choice follows the steps definition a Stack Program linear All capacitor steps are of equal size i e 1 1 1 1 The operation sequence to a ast in first out LIFO principle The first step connected will be the last one to be disconnected and vice versa See Table 1 b Normal program 2 linear Normal program can be used on bank whose step ratio is 1 2 4 4 The linear sequence starts with the 39 step The two first steps are used as fine tuning The controller always start by switching the first step then the second Other steps are used successively See Table 2 C Circular 1 1 1 program All capacitor steps are of equal size i e 1 1 1 1 The operation sequence obeys the first in first out FIFO principle With this stepping program the amount of on and off connections
34. ommon parameters and then launch an automatic search for the other parameters Auto setup forces application setting to 4 quadrant step program to optimal and disables step size monitoring C K value step setup and wiring are detected automatically The automatic detection is unavailable if fixed steps are set NOTE The use of Auto Setup of Parameters menu is forbidden on HV network applications In the event of error see the error table on previous page tar TENE _ Code Lock MEASUREMENTS s Keylock type 1 SETUP om HAHUAL SETUP T 4 PARAMETERS Tox E Y TOM Previous gt Adjust Next 4 Transformers UTO lt m eme Input Voltage AUTO 7 Xy ESSE Adjust B 9g Target Cos SUTO eveus ente Adjust Next UserBreak 4 Searching No Yes ean ed LIIOI l ssdQGes DIOV SC VEJA TJ Browse 4 Taken into service Figure 11 Auto setup of parameters Power Factor Controller NRC12 USER S MANUAL 5 6 Manual Setup of Parameters The manual setup sequence is intended for experienced users There are nine important parameters to input before the controller can be taken into service This sequence is completed by an automatic verification of the parameters entered in this sequ
35. request for more steps exist 2 Hunting Continuing more fewer step request detected 10 min Abnormal Cos Current flows but cos out of range Ind 0 50 cap 0 80 Low voltage 80 4 5 Over Compensation No steps left to disconnect network is still 2272 capacitive 6 Wrong frequency Frequency detected at startup neither 50 Hz 2 Hz of nominal at startup nor 60Hz 7 Over Current 11596 of nominal 8 Over Voltage a 110 30 min 120 0 min Over Temperature If external temperature sensor is installed only Temperature limit setting default external temperature is watched 50 Too THD U Harmonic distortion of voltage over limit THD U limit setting default 796 11 Cap Overload Harmonic distortion or resonance polluted IRus li limit setting default 1 5 current overload factor 1 over limit 12 Cap Output Low Capacitance is measured and watched during Capacitor value lt 75 nominal connection and disconnection Step sizes must be configured for step size monitoring see Parameters Step Setup List of alarm causes and actions No EN So Out of Steps Undersized bank 2 Hunting Too small C K value If disconnection in alarm setup is Wrong program choice ON disconnects bank for 10 Defective capacitors minutes No disconnection as default Over capacitive network welded contactors Too low current 4 Disconnection till voltage ret
36. ric Industries SAS As characteristics and dimensions of our products are constantly changing please contact our offices for confirmation N 3653493EN AA 44 07 2005
37. s English Alarm 9 Para Adjustable over temperature alarm limit Fan switches ON some degrees under this adjustable offset Maximum harmonic distortion of voltage adjustable 20 5 50 7 60 20 Alarm 10 Para Alarm 11 Para Capacity overload alarm limit maximum 1 441 value 1 0 1 5 1 5 Line to Line connection Line to Neutral connection Maintenance Menu for experts Manual Setup Sequence Measurements Menu larm Paras Alarm setup enable disable Modbus Setup The use of controller s communication NONE Communication disabled READ Communication reads information READ RESET Communication reads information and resets alarms READ WRITE Communication reads and writes information NONE Number of used steps Detected in Auto Setup checked with verify function 12 12 Step Setup Normal stepping program for sequence 1 2 4 4 4 4 Optimal stepping program for many step sequencies Parameters Menu Nominal network voltage in HV applications Calculated form secondary voltage and VT ratio Software version 42 Power Factor Controller NRC12 USER S MANUAL Display information Description Min value Default value Max value Delays Reconnection delay and response delay Reconnection delay is used to protec
38. t the step capacitors don t use too short values Response delay the minimum time between changes in steps is defined as 20 of reconnection delay min 10 s The default value corresponds to capacitors with internal discharge resistors 50V 1 min Response to multi step changes is faster when using Optimal step program 10s 50s 900s Search response value step sizes and wiring Itage Input Vo Controller input voltage in HV applications 80V 150V Serial Number of the product for internal manufacturer use Controller Info Linear stepping program for sequence 1 1 1 1 1 1 Modbus Setup 2 digits containing correct message total counter 2 digits containing faulty message counter 2 digits containing replied message counter Selection of suitable stepping program between see 6 1 Stepping programs Stack Normal Circular 1 1 1 Circular 1 2 2 Optimal Forced to Optimal in Auto Setup Normal Step Setup Step Sequence setting defines step size ratios starting from the smallest first step Detected in Auto Setup checked with verify function The alternatives are 1 1 1 1 1 1 1 1 2 2 2 2 1 1 2 3 3 3 1 1 2 4 4 4 1 2 2 2 2 2 1 2 3 3 3 3 1 2 3 4 4 4 1 2 3 6 6 6 1 2 4 4 4 4 1 2 4 8 8 8 Step sequence setting is used with optimal stepping program or if the step size monitoring is on Step sequence is predefined with ot
39. tem is a forced sequence meaning that all items must be accessed before the pre configuration takes place NOTES 1 Do not use the Bank Pre Configuration menu for HV network applications 2 Select Cancel at the end of Bank Pre Configuration menu if 1 step is fixed The sequence can be interrupted by Ped key See Glossary E 8 for definitions MAIM MENU T a AUTO SETUP T m MAHUAL SETUP T PARAMETERS i uber eS E Le E T Wc ees anquage 4 OEN D Ow ay CDF J Y 4 lt Application Previous D Choose Next Input Voltage zs OW LM Adjust 4 Wiring OW Previous rte 4 2 Target Los P Egg NUNT Choose F1 F2 Previous Next enter Adjust e Delaus _ ent 3 ose Step Program AW gt gt BE DEEP Previous Adjust Next Cancel Accept d Figure 9 Bank pre configuration 18 Power Factor Controller NRC12 USER S MANUAL 5 4 Commissioning 5 4 1 Commissioning sequence A pre configured controller is put into service by this menu The sequence contains an automatic C K value detection and and automatic parameter verification to check that the manu
40. urns _____ Improper use of fixed steps UM nia mid at startup restart eee Over Voltage Temporary disconnection of steps during alarm and delay after that Over Temperature Ambient temperature too high Temporary disconnection of steps Defective cooling system during alarm and delay after that if disconnection in alarm setup is ON Disconnection as default Resonance during alarm and delay after that If disconnection in alarm setup is ON No disconnection as default Cap Overload Harmonic distortion resonance Temporary disconnection of steps during alarm and delay after that Cap Output Low Defective capacitor marks in Base Display In case of Alarm 12 user can set the defective capacitor Fixed OFF to clear the alarm situation Too High THD U Harmonic pollution Temporary disconnection of steps 30 Power Factor Controller NRC12 USER S MANUAL AUTO SETUP T ww x MANUAL SETUP T MEASUREMENTS 4 PARAMETERS weed ALARMS 4 O Edit mode Choose Alarm 1 Params 4 parameter Alarm 2 Params c 90 Adjust value ey Accept value Discard value Alarm 12 Params Figure 15 Alarms menu Alarm contacts are Closed when the controller is not energized opened when the controller is energized without alarm Closed when the controller is energized with active alarm
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