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REF 542plus

1. 26 kas xea xe3 xe2 Ge q X73 X72 yzy 1X70 X31 X31 X30 X21 X20 3 2 x10 A051273 Fig 8 1 2 REF 542plus standard housing connections with mixed analog input connector and connector for the 0 4 20 mA analog output module 2 D00000 x73 x72 7 x70 X65 X64 X63 X62 Y x61 X60 X50 X41 X40 X31 X30 X21 X20 kA 2 4 D x10 O A051274 Fig 8 1 3 REF 542plus wide housing connections plate The connectors meaning is explained in the following Table 8 1 1 A few connectors have different meaning depending upon the used communication module type Sensors connectors X87 and X88 are placed instead of X80 when only sensors are used 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual Table 8 1 1 Meaning of connectors Connector Meaning X10 Base unit power supply X20 First BIO inputs X21 First BIO outputs X30 Second BIO inputs X31 Second BIO outputs X40 Third BIO inputs X41 Third BIO outputs X50 Analog output 0 4 20 mA or Analog input 4 20 mA X60 Modbus RS 485 channel 2 COM L COM I RX
2. A050404 Fig 4 6 1 Record of a cross country fault in MV system Time synchronization REF 542plus is equipped with an internal real time clock which is used to time stamp events The internal clock is buffered by a special capacitor In case of a DC power supply failure the stored electrical energy in the capacitor ensures continued operation of the internal clock for at least another two hours The date and time of the clock can be set via the HMI control unit REF 542plus internal clock can be kept in synchronization with an external clock in different ways When connected to an ABB station automation system REF 542plus is synchronized via an interbay bus using the facilities of for example SPA protocol or ABB LON per LAG 1 4 protocol For connection to third party system the standard protocol IEC 60870 5 103 IEC 61850 or modified Modbus RTU protocol are available If better accuracy is required REF 542plus can be synchronized using the dedicated IRIG B optical input port and a GPS master clock The accepted timeformats are IRIG format B 000 B002 and B003 The Fig 4 7 1 shows the time distribution architecture for the synchronization 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual GPS satellite Satellite antenna A ubstation Substation aster clock risa EUA Master clock and distributor Switchboard p starcoupler A050501 Fig 4
3. 240 V DC 15 10 Power consumption Admissible ripple lt 6 W backlight off and lt 10W backlight on Less than 10 47 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 6 7 6 8 6 9 48 Environmental conditions Table 6 7 1 Environmental conditions Ambient operation temperature 10 55 C Ambient transport and storage 25 70 C temperature Ambient humidity Up to 95 without condensation Altitude lt 1 000m a s l Protection degree Base unit e Housing IP20 HMI e Front IP44 e Rear IP20 Tests Type test Detailed information on type tests are listed in the document REF 542plus Type test certificate 1MRS756443 Protection functions Protection functions are type tested according to IEC 60255 standard series Electromagnetic compatibility All relevant tests are according to the following standard series e IEC 60255 for electromagnetic compatibility and product standard e EN 61000 for electromagnetic compatibility e EN 50263 for measuring relays and protection equipment e EN 60694 IEC 60694AMD 12000 for common specifications for high voltage switchgear and control gears Insulation resistance Greater than gt 100 MQ at 500 V DC Mechanical robustness According to IEC 60255 21 1 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technic
4. 64 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual ee ee e e E a E E E i A070135 Fig 8 2 2 Binary inputs and outputs module Static I O 1 Standard static I O 2 Static I O without control continuity check In the binary inputs and outputs module BIO3 the trip coil supervision is located in BO2 Binary outputs BO7 and BO8 are exchange contacts normally used for signalling WD1 is the watchdog contact In the static output module there are two trip coil supervision circuits in BO1 and BO2 8 3 Typical connection schemes Some exemplary connection schemes are reported below Many others are possible 8 3 1 Generic outgoing feeder This picture represents the typical connection scheme for outgoing feeders when both voltage and current protections are required There is also a current balance transformer for earth fault current sensing Analog input channel 8 is not used 65 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 8 3 2 66 L1 TYPICAL CONNECTION GENERIC FEEDER Analog Input 1 T1 CT Analog Input 2 T2 CT POWER FLOW ot Input 3 T3 CT Analog Input 4 T4 VT Analog Input 5 T5 VT A a Analog Input 6 T6 VT Analog Input 7 17 CT ama
5. Object Control push buttons allow operating the primary objects Menu Navigation Menu Navigation push buttons allow navigating trough the REF 542plus menu Programmable LEDs 8 freely programmable three color LEDs are available for indications There are 4 pages of these LEDs The assignment of the LED to a specific condition is done with the Operating Tool PC interface PC interface is the infrared serial IrDa interface port to connect the REF 542plus with a personal computer By using the appropriate cable and the Operating Tool the following actions are possible e Downloading a configuration into the unit e Uploading the current configuration from the unit e Uploading the fault recorder e Uploading other information measurements binary inputs status binary output status Measurements Bars 3 freely programmable bars are provided for a quick inspection of the switchgear load situation The three bars are marked M1 M2 and M3 Each bar is composed of twelve LEDs ten green and two red The ten green LEDs are normally dedicated to display between 0 and 100 of the nominal value of the configured measurement each LED corresponding then to 10 of the nominal value The two red LEDs indicate an overload condition of 20 The measurement displayed by the bar is set with the Operating Tool M1 M3 reference text can be configured and displayed on the display is display s graphical side 1MRS755859 Multifunction Prot
6. TENES S A l P1 4 BN H P2 E ANALOG INPUT 1VCF750170R0817 A070120 Fig 8 3 1 1 Generic outgoing feeder Feeder with differential protection The schematic diagram below shows the connection for a power transformer feeder with differential earth fault and restricted earth fault protection The used analog input board has 8 inputs for currents The first 6 channels are used for the differential protection channel 7 is used for the restricted earth fault protection and channel 8 for the earth protection 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 8 3 3 L1 L2 L3 la ial I I I x x x at X80 l PO 11 i 7 Au S1 3 TL1 s2 t __ 22 s1 18 Al2 m K s2 14 si 10 TL3 s2 6 AI3 2 I S1 S2 21 i 13 Al4 s1 17 TWL1 s2 t 5 ka s1 i 9 AIS TVL2 g s2 1 s1 23 TLS s2 15 Al6 19 sual 20 AI7 18 ai 12 8 Als 4 A051283 Fig 8 3 2 1 Power transformer differential protection Incoming feeder with synchrocheck The Fig 8 3 3 1 shows a possible connection diagram for a generic incoming feeder with synchrocheck function on the busbar Channels 1 2 3 are used for current sensing and Channel
7. The advisable panel hole is the same as before 1MRS755859 Multifunction Protection and Switchbay Control Unit Technical Reference Manual REF 542plus 6 1 6 1 1 6 1 2 Technical data Analog inputs Measurements The REF 542plus unit uses the same analog inputs both for measurements and protections Table 6 1 1 1 Measurements Quantity Range Phase current earth current 0 1 4I Line voltage phase voltage 0 2 1 5V Active reactive energy 2 Active reactive apparent power 1 Coso 1 0 1 Frequency 0 02 To achieve highest accuracy the instrument transformers or the sensors must have 0 5 percent accuracy or better in the same range Protection Table 6 1 2 1 Protection functions and operation time Protection functions Class 3 Operation time Class 3 or minimum 15 ms Table 6 1 2 2 Current and voltage transformer input values Rated current 0 2Aor1Aor5A Rated voltage U 100 V 125 V Rated frequency fn Table 6 1 2 3 Thermal load capacity 50 Hz or 60 Hz Current path Voltage path 250 I peak value dynamic 100 I for 1s 4 continuous 2 Un V3 continuous Table 6 1 2 4 Consumption Current path lt 0 1 VA with I Voltage path lt 0 25 VA with Un 37 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Ma
8. 0 00 Angle delta 2 90 00 135 00 t 20 10 000 ms 1 non directional stage t 20 10 000 ms Power quality functions Power factor controller Switching sequence linear circular Switching histeresis neutral zone 105 200 of Qco Pick up value 0 100 of Qco Reactive power of smallest bank Qco 1 000 20 000 000 kVar Configuration banks 1 1 1 1 1 1 2 2 1 2 2 2 1 2 4 4 1 2 4 8 Number of banks 1 4 Max switching cycles 1 10 000 Set point cos 0 7 1 00 ind or cap Limiting value cos 0 00 1 00 ind or cap Method of operation direct integrating dicharge blocking time 1 7200 s dead time 1 120 s power on delay 1 7200 s duration of integration 1 7200 s High harmonic protection Voltage THD startvalue 5 50 Voltage THD time delay 0 01 360 00 s Time 0 05 360 00 s RMS voltage start value 0 10 1 00 Un 42 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual Switching Voltage THD Start value 5 50 resonance Delta Voltage THD Start Value 1 50 protection Voltage THD Time Delay 0 01 60 00 s t 0 05 60 00 s PFC OP Time 0 01 120 00 s RMS Voltage start value 0 10 1 00 Un Other functions Fault recorder Time before fault 100 2000 ms Recording time 1000 5000 ms Time after fault 100
9. 4900 ms Max 5 records 79 Autorecloser Operation mode Start and Trip controlled Start Controlled Number of reclosing cycle 0 5 Reclaim time 10 00 1000 00 s Specific operation time first shot 0 04 1000 00 s Dead time first shot 0 10 1000 00 s Specific operation time second shot 0 04 1000 00 s Dead time second shot 0 10 1000 00 s Specific operation time third shot 0 04 1000 00 s Dead time third shot 0 10 1000 00 s Specific operation time fourth shot 0 04 1000 00 s Dead time fourth shot 0 10 1000 00 s Specific operation time fifth shot 0 04 1000 00 s Dead time fifth shot 0 10 1000 00 s 32 Directional power Direction forward backward Nominal real power Pn 1 1000 000 kW primary values Max reverse load P gt 1 50 Pn Op time 1 0 1000 0 s 6 3 Configuration restriction There are some limitations that must be respected during the REF 542plus configuration e At most 24 protection functions can be configured inside the unit e A protection function can activate only one single direct channel e The number of direct channel is limited to 24 e The configuration cycle time must be below 30 ms to guarantee the proper working of the unit e At most 1000 wires can be drawn and the connections are limited to 512 e Only one store object can be configured The store object allows storing binary data between a power fail
10. SPABUS TX X61 Modbus RS 485 channel 1 COM L COM TX SPABUS RX X62 Optical Modbus RX channel 1 X63 Optical Modbus TX channel 1 X64 Optical Modbus RX channel 2 X65 Optical Modbus TX channel 2 X66 Optical LC connector on the Ethernet module X67 Optical LC connector on the Ethernet module X68 Electrical RJ 45 connector on the Ethernet module X69 Electrical RJ 45 connector on the Ethernet module X70 Ethernet interface RJ 45 on the mainboard X71 CAN interface X72 RS 232 service port null modem connection X73 Connection to HMI X74 IRIG B interface for time synchronization X75 HSTD input X76 HSTD input X77 HSTD output X80 Connector for CTs and VTs X81 Sensor 1 X82 Sensor 2 X83 Sensor 3 X84 Sensor 4 X85 Sensor 5 X86 Sensor 6 X87 Sensor 7 X88 Sensor 8 61 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 62 The REF 542plus HMI connection is shown in Fig 8 1 4 e The X10 connector connects REF 542plus to the auxiliary voltage for the power supply e Connector type Weidmuller SLA2 90B3 2SNOR e The X20 connector connects REF 542plus to the base unit e Connector type D SUB9 FCT FO9P5G2 K216 HMI MODULE A051275 Fig 8 1 4 REF 542plus HMI connection Analog input connections The analog input connector changes when conventional instrument transformers sensors or mixed combinations have to be connected When sensors are
11. which is then downloaded into the unit via the optical serial port on the HMI The Operating Tool allows also these additional functions once connected to the HMI via the serial cable e Protection functions setting e Measurement values read out e On line binary inputs and outputs status read out e Fault recorder data acquisition The Operating Tool allows on line real time monitoring of the internal control signals and logic states a powerful tool for application debugging The specific software configuration of the required protection scheme can only be carried out in house at ABB Measurement REF 542plus can have a maximum of 8 analog input channels for measuring current and voltage signals These channels are organized into three groups REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 4 2 1 4 2 2 4 2 3 20 Group and group 2 have to be homogeneous which means they can measure 3 currents or 3 voltages For example measurement of 1 current and 2 voltages is not allowed Group 3 can get any type of signals for example 2 currents 2 voltages or 1 current and 1 voltage REF 542plus analog input is designed to be very flexible in order to support all the protection functions of the unit itself Group and group 2 can be used for homogeneous current or voltage measurements both from instrument transformers and non conventional sensors Group 3 can be u
12. 2 5 m 2 5 m cable with corresponding connectors 3 750142 818 HMI cable 3 5 m 3 5 m cable with corresponding connectors 4 750142 819 HMI cable 4 5 m 4 5 m cable with corresponding connectors 1MRS755859 ai aaah Protection and Switchbay Control REF 542plus Technical Reference Manual 76B6A333036S2Z41 Table 7 14 Software licenses NUMBER CODE NAME DESCRIPTION 1 1MRS090002 Software base license Software level Base 2 1MRS090003 Software high license Software level High 1MRS090004 Software basic low Software level Basic Low license 1MRS090005 Software basic license Software level Basic 1MRS090006 Software multi low Software level Multi Low license 6 1MRS090007 Software multi license Software level Multi 7 1MRS090008 Software differential Software level Differential license 8 1MRSO090009 Software distance Software level Distance license DA limitation of the protection functionality with a software license Contact your local ABB organization for more detailed information The software level Base can only be ordered by ABB switchgear companies It is of the same level as the software level Distance Table 7 15 SW tool licenses Code Description 1MRS 151022 REF 542plus Operating Tool CD 1MRS 151062 REF 542plus Configuration Tool CD Use the key in Fig 7 2 to generate the type designation The code numbers in the
13. 7 1 Synchronization of the internal clock by a GPS master clock 4 8 Interface to the primary process The REF 542plus offers a flexible interface to the primary process which is described in the following sections 4 8 1 Analog inputs REF 542plus switchbay protection and control unit is designed for connecting to non conventional current and voltage sensors as well as to instrument transformers At most 8 analog input channels are available Due to their linear characteristic modern current and voltage sensors provide greater accuracy and reliability in signal measurements Compared to instrument transformers the new sensors have the following advantages e Higher linearity e High accuracy e Compact dimensions e Wide dynamic range e Easy integration in the panels The current sensor is based on the Rogowsky coil principle and consists of a single air wounded coil Due to the lack of an iron core the saturation effects of conventional current transformers do not exist anymore Current sensors are thus well suited for the deployment of distance and differential protection functions 25 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 4 8 2 26 The current sensor output is a voltage signal proportional to the derivative of the primary current being measured The numerical integration of the signal is performed by the DSP in the REF 542plus unit The current
14. In motor current Is 1 000 20 000 IMn start value t 40 30 000 ms n warm 1 10 number of warm starts n cold 1 10 number of cold starts t 1 00 7200 00 s T warm 20 200 C warm start temp thereshold 46 Unbalance load Is 0 05 0 30 In start value of the negative phase sequence K 0 5 30 0 t Reset 0 2000s Timer decreasing rate 0 100 37 Low load Pn 50 1000 000 kW primary values Minimal load P 5 100 Pn Minimal current 2 20 In Operation time 1 0 1000 0 s Differential protection functions 87 Differential Differential Transformer group 0 11 Transformer earthing primary and or secondary side Primary nominal current 10 00 100 000 00 A prim value Secondary nominal current 10 00 100 000 00 A prim value Threshold current 0 10 0 50 Ir p u Unbiased region limit 0 50 5 00 Ir p u Slightly biased region threshold 0 20 2 00 Ir p u Slightly biased region limit 1 00 10 0 Ir p u Slope 0 40 1 00 Trip by Id gt 5 00 40 00 In Blocking by 2nd harmonic 0 10 0 30 In Blocking by 5th harmonic 0 10 0 30 In 87N Restricted earth fault protection restricted differential Reference nominal current 1 00 100000 00 A Unbiased region threshold 0 05 0 50 Ir Unbiased region limit 0 01 1 00 Ir Slightly bia
15. Load current 16A Operating time 1 ms 45 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 6 5 46 4 power outputs BOS 6 Operating voltage 48 to 250 V DC Make current 120A Load current 31A Operating time 1 ms 2 signal outputs BO8 9 Operating voltage 48 to 250 V DC and 1 watchdog output Make current 1 5 A 100 ms WD Ron 1 06 Q Rott 40 MQ Operating time 1 ms 2 coil supervision circuits on Coil OK when impedance below 10 kQ BO1 and BO2 channels Interfaces HMI control unit e Serial infrared IrDa electrical RS 232 interface to a PC at the front e Electrically isolated RS 485 standard interface to the base unit at the rear e Electrical standard interface RJ 45 for Modbus TCP and or the embedded WEB server e Power supply Base unit e Electrically isolated RS 485 standard interface to the HMI e RS 232 standard service interface service port for updating configuration and firmware e Power supply 0 4 20 mA analog output module optional e Four output channels 0 to 20 mA or 4 to 20 mA freely configurable 4 20 mA analog input module optional e Six input channels 4 20 mA Communication to a station automation system optional e SPA optical plastic fiber interface with snap in type connector or glass fiber multi mode with F SMA or ST connectors e LON according to ABB LAG1
16. Unit Technical Reference Manual Binary inputs are isolated by opto couplers Binary outputs can be implemented either with mechanical relays or with static semiconductor devices In a switchgear with directly driven motors static power outputs are usually required A051256 Fig 4 8 2 1 Combined sensor in block type DIN execution 4 9 Interfacing a station automation system An optional communication module can be provided for interfacing a station automation system The six different protocols available for the REF 542plus make possible to interface any kind of station automation system both from ABB or from third parties The following typical functions are possible e Primary objects status monitoring e Primary objects control e Protections parameterization e Measurements alarms end events acquisition e Fault recorder data acquisition The available protocols are e SPA e ABB LON according to LON Application Guide LAG 1 4 definitions e MODBUS RTU e MODBUS TCP e IEC 60870 5 103 with the extensions for control functions according to VDEW Vereinigung Deutscher Elektrizita tswerke Association of German Utilities e IEC 61850 for the moment limited only to vertical communication no GOOSE messages provided 27 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 4 10 28 The first two protocols SPA and LON according to LAG 1 4 ar
17. line diagram The right side is for plain text visualization such as measurement and protection events The LCD backlight is switched off automatically after 20 minutes of inactivity The HMI is a complete system for the local management of the switchgear The HMI allows the operator to set the protection functions operate the primary objects visualize measurements and events reset alarms and change the unit working mode The HMI includes 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual e Unit Ready LED e Network Communication LED e Alarm LED e Interlocking Error LED e Electronic Keys Sensor e Object Control push buttons e Menu Navigation push buttons e Programmable LEDs e PC interface e Measurements Bars e Text e SLD view e CB fast opening e User defined command buttons Unit Ready LED This green LED is turned on when the unit is operational This LED is switched off when there is no power supply or when the unit is not operational Network Communication LED This LED is meaningful only when the REF 542plus is equipped with a communication module and configured to use it When a communication module is detected inside the unit the LED tums on to green If a communication module is not detected or fails the LED turns from green to red When the unit is not configured for the communication the LED is switched off Alarm LED The alarm LED turns t
18. used they are connected with double line ST type connectors X81 corresponds to sensor 1 and X88 connects sensor 8 They can be indifferently current or voltage sensors The choice is a software configuration inside the REF 542plus unit 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 8 2 When conventional instrument transformers are in use the connector looks like in the Fig 8 1 5 a X80 wuz A051277 Fig 8 1 5 Connector for analog input module sensors and connector for conventional instrument transformers Binary input and output connections Binary inputs and outputs modules use the following connectors e X20 inputs X21 outputs for the first module e X30 inputs X31 outputs for the second module e X40 inputs X41 outputs for the third module available with the wide case only The Fig 8 2 1 shows the connection diagram for the binary inputs and outputs module BIO3 63 REF 542plus Ht aa Protection and Switchbay Control 4MRS755859 ni Technical Reference Manual i Bo I le CUF CE ke tE eae CA eae Ce E Pe be Pe Le Pe a E le Ul er i A070134 Fig 8 2 1 Binary inputs and outputs module BIO3 1 BIO3 standard 2 BIO3 with 1 static channel 3 BIO3 with interconnected inputs The following Fig 8 2 2 shows the binary inputs and outputs module called Static VO
19. 0 2 A 1 VT 12 750170 847 3 sensors 3 sensors 1 CT 13 750170 851 3 sensors 3 sensors 1 CT 1 VT 14 750170 852 3 sensors 3 sensors 1 CT 0 2 A 15 750170 853 3 sensors 3 sensors 1 VT 1 VT 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual NUMBER CODE DESCRIPTION 16 750170 854 3 sensors 3 CT 1 CT 0 2 A 1 VT 17 750170 855 3 sensors 3 CT 1 CT 0 2 A 1 CT 0 2 A Table 7 9 Mix of transformers NUMBER CODE DESCRIPTION 30 750170 804 3 CT 3 VT 1 CT 0 2A 1VT 31 750170 806 3 VT 3 VT 1 CT 0 2 A 1 CT 0 2 A 32 750170 807 3 CT 3CT 33 750170 809 3 CT 3 CT 1 CT 0 2A 1VT 34 750170 812 3VT 3VT 1VT 35 750170 817 3CT 3VT 1CT 36 750170 819 3CT 3VT 1CT 1VT 37 750170 821 3 CT 0VT 1CT 38 750170 822 3 CT 0 VT 1 CT 0 2 A 39 750170 825 3 CT 3 VT 1 CT 0 2 A 1 CT 0 2 A 40 750170 826 3 CT 3VT 1VT 1VT 41 750170 827 3CT 3CT 1CT 1CT 42 750170 828 3CT 3CT 1CT 1VT 43 750170 824 3CT 3VT 1CT 10CT 76B6A333036 Table 7 10 Communication with optional communication module NUMBER CODE NAME DESCRIPTION E 1VCR009634001 IEC 61850 with RJ45 F 1VCR009634002 IEC 61850 with LC optical connector N none Without communication No communication is requested 1 750079 801 Modbus RTU SPA RS 485 2 750079 802 Modbus RTU SPA glass fibre with
20. 4 glass fiber multi mode optical interface with ST connectors e IEC 60870 5 103 with extension according to VDN guidelines for controlling glass fiber multi mode optical interface with ST connectors 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 6 6 e Modbus RTU SPAbus electrical interface with two galvanically insulated SPA bus RS 485 ports or optical interface with four standard ST connectors for glass fiber multi mode e JEC 61850 electrical interface with two RJ45 connector or optical interface with two pair LC connector for glass fiber 50 125 um multi mode fiber Ethernet Interface e Standard RJ45 connector on the main module CAN Open optional and only for ABB switchgear companies e Open style connector compliant with CAN Open standard and ISO11898 Input for time synchronization optional the supported protocol is IRIG format B000 B002 B003 e Glass fiber e Wavelength 820 nm e Max distance 1500 m e Connector type ST Power supply Table 6 6 1 Base unit Rated voltage 110 V DC 30 10 220 V DC 30 10 or 48 to 220 V DC 15 10 Power consumption lt 20 W Typical 2 BIOs Inrush current Admissible ripple Module 750 168 10 A 1 ms 35 A 100 us Module 750 126 8 3 A 4 ms 21 A 100 us Less than 10 Table 6 6 2 HMI Rated voltage 48 90 V DC 15 10 110
21. 542plus Unit Technical Reference Manual e Optionally the communication module e Optionally the 4 20 mA analog input module or the 4 0 20 mA analog output module 97 5 0 1 97 5 0 1 106 3 0 1 106 3 0 1 97 5 0 1 97 5 0 1 A051269 Fig 5 1 2 Wide housing version dimensions 33 REF 542plus a Protection and Switchbay Control 4MRS755859 ni Technical Reference Manual 5 2 Mounting and installation The Fig 5 2 1 shows an example of wide housing base unit installation inside a low voltage compartment A051270 Fig 5 2 1 Base unit installation in AIS system 5 3 HMI The HMI dimensions are shown in Fig 5 3 1 and Fig 5 3 2 34 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual C O e a 5 e O C 2 nee 239 7 DIMENSION OF THE AREA TO BE CONFIRMED ae i 55 DIMENSION OF THE AREA TO BE CONFIRMED H 240 5 140 5 ADVISABLE PANEL HOLE Lf Ei EI A051271 Fig 5 3 1 Dimensions of the HMI version without cover The advisable panel hole is 240 5 mm x 140 5 mm The existing connectors for the former version of the HMI can be used 35 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual ploloto eje o eje Fig 5 3 2 Dimensions of the HMI version with cover
22. AN interface F 751021 Full Version with additional optical links 801 76B6 Table 7 4 Power supply versions NUMBER CODE NAME DESCRIPTION 1 750126 801 U 110 V DC For applications with a rated voltage of 110 V DC 2 750126 802 U 220 V DC For applications with a rated voltage of 220 V DC 3 750168 801 U 48 220 V DC For applications with a rated voltage of 48 220 V DC 6 750168 802 U 48 220 V DC DNV For marine applications with a rated version voltage of 48 220 V DC 76B6A 52 1MRS755859 Unit Multifunction Protection and Switchbay Control Technical Reference Manual REF 542plus Table 7 5 Analog I O modules NUMBER CODE NAME DESCRIPTION N none No analog input or output Empty analog I O module slot A 750211 801 Analog input module 4 Analog input module for 4 20 mA 20 mA installed up to 6 inputs B 750237 801 Analog output module 0 Analog output module for 0 4 20 mA 4 20 mA installed up to 4 outputs 7T6B6A3 Table 7 6 Binary I O modules NUMBER CODE NAME DESCRIPTION 1 701052 801 Static I O Application in GIS panel with coil supervision through a control continuity check 2 701052 802 Static I O without Static I O without control continuity control continuity check check 5 750132 801 Binary 1 03 20 90 V 14 Standard version with a 14 V DC V DC standard threshold value for an application in an auxiliary circuit with a DC vo
23. REF 542plus Technical Reference Manual 1MRS755859 Issued 29 03 2002 Version F 14 02 2008 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual Contents COPYriIghtS icone a ea e ae deities oad 5 A Introductions aanraai iana aaran iioa 7 Viele Ths manuara a aA ea aes aa INET eas 7 1 2 Use of SYMBOLS issis an a a A ed a ae 7 1 3 Intended audience ccccececee cece eee eeeeeeeeeeeeenes 7 1 4 Product documentation cccceceeeeeeeeeeeee eee eaen 8 1 5 Document reviSions 0cececeeeeee cece eeeeeeeeeeeeeeaes 8 Safety information ccccececeeeee cece eens eens sees eeeeeeeeeee 9 GONGlalls 5tecectcensnecetesesancegubihetes a a e eaaa a aa 11 FUNCIONS seccia iienaa eres aoaaa pE a aa ORERE EES 19 ATs Config ratioN s sa vmware eusorgsageosdabteadsabeeddseygocahoeecdeoens 19 4 2 Measurement cccccccececeeee ee ee ee ee ee eeeeeeeaeaeeeeeaeees 19 4 2 1 Directly measured values o n 20 4 2 2 Calculated values ccccccec ec ecee ee ee ees 20 4 2 3 Other values 0c e cece cece eee ee senses eeeeees 20 4 2 4 Monitoring and self diagnosis 06 21 4 3 Protections eee e ea e ec eae nec ee a sees E EO EAEE EED EA 21 e a BEE 01A KO PE AAE E E EET 22 4 5 Event recording sessssssesrsrererrrrorerrsrorernsrrrernerrrre 23 4 6 m LaTe KO c n E E E E E 23 4 7 Time synchron
24. ST connectors 3 701842 801 SPA plastic fibre 4 701842 802 SPA glass fibre with SMA connectors 5 701842 803 SPA glass fibre with ST connectors 6 750071 801 LON LAG 1 4 7 750071 803 IEC 60870 5 103 76B6A333036S 55 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual Table 7 11 Enclosure versions NUMBER CODE NAME DESCRIPTION 56 S 750154 801 Normal base unit Normal version WwW 750102 801 Wide base unit Wide version 76B6A333036SZ Table 7 12 HMI variations NUMBER CODE NAME DESCRIPTION N none No HMI A 007346 003 HMI V5 IEC auxiliary voltage 48 90 V DC B 007346 004 HMI V5 IEC auxiliary voltage 110 240 V DC Cc 007346 007 HMI V5 IEC external cover auxiliary voltage 48 90 V DC D 007346 008 HMI V5 IEC external cover auxiliary voltage 110 240 V DC E 007346 011 HMI V5 IEC Chinese auxiliary voltage 48 90 V DC F 007346 012 HMI V5 IEC Chinese auxiliary voltage 110 240 V DC G 007346 015 HMI V5 IEC Chinese external cover auxiliary voltage 48 90 V DC H 007346 016 HMI V5 IEC Chinese external cover auxiliary voltage 110 240 V DC 76B6A333036SZ4 Table 7 13 Connection cables between the HMI and the base unit NUMBER CODE NAME DESCRIPTION N none No cable No cable 1 750142 801 HMI cable 1 8 m 1 8 m cable with corresponding connectors 2 750142 817 HMI cable
25. V DC 80 250 V DC threshold 72 V DC 80 250 V DC threshold 143 V DC Hardware fixed filter time 1 ms Additional filter time can be configured in software 6 power outputs channels BO 1 to 6 Maximum operating voltage 250 V AC DC Make current 8A Load current 6A Breaking capacity 1 contact 70 W 2 contacts in series 130 W at L R lt 40 ms and 10 000 operations Operating time 8 ms 2 signal outputs BO7 and Maximum operating voltage 250 V AC DC BO8 and 1 watchdog Load current 2A output WD Operating time 8 ms Optional 1 static output on Maximum operating voltage 250 V DC BO7 Make current 1 5 A peak Load current 0 7 A continuous Operating time 1 ms 1 coil supervision circuit on BO2 Coil OK when impedance below 10 Q BIO module with static outputs The technical data for the binary input and output module with static outputs are listed in Table 6 4 2 1 This module is full range and covers the complete voltage range from 48 up to 265 VDC Table 6 4 2 1 static outputs Technical data for the binary input and output module with 14 inputs BI 1 14 Auxiliary voltage range 48 to 265 V DC Threshold 35 V DC Hardware fixed filter time 5 ms Additional filter time can be configured in software 3 power outputs BO1 2 and b7 Operating voltage 48 to 250 V DC Make current 64A
26. al 6 4 1 BIO module with mechanical output relays VETSIONS ricteri cic cause teh cee bt tee cate 44 6 4 2 BIO module with static outputs 45 6 55 INLSMTACES ic ico catces ce tas neh Se wee bse E E E Sadie setae 46 6 6 Power SUpDIy neroian er asin darned Sal lanai 47 6 7 Environmental conditions c ececeeeeee eens eee 48 6 8 Protection degree sssessrsrsessrriresrrnrreerrrireerrerire 48 0 9 TESIS hci hidorcthastancnsstoredectoncgueedeuduidbad dna orudaideraneaed eis 48 T SOG TUNG cs eee et ee ictal Sa waa oe ie thea as 51 Connections aaa a a cred anne aces A eaa Ea a 59 8 1 Connector plates eae a E T 59 8 2 Binary input and output connections 606 63 8 3 Typical connection schemes eseeceeeeeeeereeeeeereeee 65 8 3 1 Generic outgoing feeder 65 8 3 2 Feeder with differential protection 66 8 3 3 Incoming feeder with synchrocheck 67 9 Abbreviations ciccciececsccdeusiccecetenccusie ohixscaesesedededeheves 69 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual Copyrights The information in this document is subject to change without notice and should not be construed as a commitment by ABB Oy ABB Oy assumes no responsibility for any errors that may appear in this document In no event shall ABB Oy be liable for direct indirect spe
27. al Reference Manual Climatic conditions Cold test according to IEC 60068 2 1 Dry heat test according to IEC 60068 2 2 Certifications ATEX The REF 542plus unit when used as a motor protection can optionally comply with the directive 94 9 EC from the European Community for explosives environments This directive defines how motor protection units behave in potentially explosive environment The EC type certification number from PTB Physikalisch Technische Bundesanstalt is PTB 02 ATEX 3000 DNV The REF 542plus unit when used in marine application can optionally comply with Det Norske Veritas Rules for classification of ships High Speed amp Light Craft and Det Norske Veritas Offshore Standards 49 50 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual Ordering The different variants have their own specific order numbers that identify the type designation for the desired hardware and software combination The type code designation can be seen in Fig 7 1 Operations field Main board Analog I O board Power supply Analog input Communication w ie 6 U gt a iu Binary I O 1 Binary I O 2 Binary I O 3 Software 76B6A 333 0365241 A060505 Fig 7 1 Type code designation for ordering REF 542plus Each code is dedicated to a specific application or module The description for each type code is listed in the following
28. ard version For more information see Table 7 3 Applications 6 REF 542plus A REF 542plus DNV marine B REF 542plus ATEX 1 For more information see Table 7 2 IL Feeder terminal family code 7 REF 542plus For more information see Table 7 1 A060520_2 Fig 7 2 The key for generating the type designation 58 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 8 1 Connections Connector plates The pictures show the connections for REF 542plus both in the standard and wide housing versions The wide housing version can house three binary input and output modules the communication module the 0 4 20 mA analog output module or alternatively the 4 20 mA analog input module The standard housing version can house at most two binary input and output modules and alternatively the communication module or the analog output module x73 x72 7 x70 x65 x64 x63 x62 x61 X60 X31 X30 X21 X20 E 2 4 X10 A051272 Fig 8 1 1 REF 542plus standard housing connections with mixed analog input connector and connector for the communication module 59 REF 542plus a Protection and Switchbay Control 4MRS755859 ni Technical Reference Manual
29. ation Manual 1MRS755862 SCL Tool Configuration Manual 1MRS756342 Protection Manual 1MRS755860 Technical Reference Manual 1MRS755859 Technical Reference Modbus RTU 1MRS755868 Web Manual Installation 1MRS755865 Web Manual Operation 1MRS755864 IEC 61850 Protocol Implementation extra Information for 1MRS756360 Testing PIXIT IEC 61850 Conformance Statement 1MRS756361 IEC61850 Tissues conformance statement 1MRS756362 1 5 Document revisions Version IED Revision number Date History 1VTA100001 Release 1 1 software version 25 10 2002 Rev 6 en V4C01 1VTA100001 Release 2 0 software version 15 09 2003 Rev 7 en V4D02 A Release 2 0 Service Pack3 28 02 2006 Document updated e language e layout B 2 5 30 09 2006 Updated to software version V4E03x C 2 5 30 04 2007 Updated to software version V4E04x D 2 5 15 08 2007 Document updated E 2 5 28 09 2007 Document updated F 2 5 14 02 2008 Document updated Applicability This manual is applicable to the REF 542plus release 2 5 software version V4E04x 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 2 Safety information A Dangerous voltages can occur on the connectors even though the auxiliary voltage has been disconnected Non observance can result in death personal injury or substantial property damage Only a competent electrician is allowed to carry out the electrical installation National and local electrical sa
30. blocking 68 e Overcurrent instantaneous 50 e Overcurrent definite time 2 thresholds 51 e Overcurrent directional 2 thresholds 67 e Overcurrent IDMT 51 IDMT e Earth fault 2 thresholds 51N e Earth fault IDMT 51 IDMT e Earth fault directional 2 thresholds 67N e Earth fault directional sensitive 67S e Earth fault directional sector 67NS 10 thresholds Voltage protection e Overvoltage instantaneous 59 e Overvoltage definite time 2 thresholds 59 e Undervoltage Instantaneous 27 e Undervoltage definite time 2 thresholds 27 e Residual overvoltage 2 thresholds 59N 21 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 4 4 22 Line protection e Distance 21 Differential protection e Differential protection for motors and transformer 87 e Restricted earth fault for transformer 87N Thermal protection e For cables motors and transformers 49 Motor specific protection e Number of starts counting 66 e Locked rotor 51LR e Motor start 51MS e Low load 37 e Unbalanced load 46 Power quality mitigation e Power factor controller 55 e Switching resonance protection e THD protection Other protections and related functions e Frequency protection 81 6 thresholds per net e Synchro check 25 e Fault recorder e Autoreclosure 79 e Lock out 86 e Reverse power 32 At most 24 protect
31. cial incidental or consequential damages of any nature or kind arising from the use of this document nor shall ABB Oy be liable for incidental or consequential damages arising from use of any software or hardware described in this document This document and parts thereof must not be reproduced or copied without written permission from ABB Oy and the contents thereof must not be imparted to a third party nor used for any unauthorized purpose The software or hardware described in this document is furnished under a license and may be used copied or disclosed only in accordance with the terms of such license Copyright 2005 ABB All rights reserved Trademarks ABB is a registered trademark of ABB Group All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders Guarantee Please inquire about the terms of guarantee from your nearest ABB representative 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 1 14 1 2 1 3 Introduction This manual This manual provides thorough information on the protection relay REF 542plus and its applications focusing on giving a technical description of the relay Use of symbols This publication includes the following icons that point out safety related conditions or other important information The electrical warning icon indicates the presence
32. ds or a single record of 5 seconds The recording can be started by a protection event by a binary signal change or by any user defined condition 23 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 4 7 24 Fault records can be transferred locally to a personal computer from the HMI optical port with the Operating Tool on from the communication interface When extracted with the Operating Tool the fault records are automatically converted into the standard COMTRADE format When retrieved from the communication interface they can be converted with a utility program Fault records are stored in non volatile memory so they remain available also after a power failure Fault records can be exported and converted with the configuration software The transfer of fault records can be done also via the interbay Fig 4 6 1 shows a record of a cross country fault in an earth fault compensated MV system starting with the earth fault It ms 200 450 100 50 0 8 50 100 150 200 250 1 1 1 1 ji fi 1 fi 1 ji CURRENT L1 gae A CURRENT L2 i 1 3395A CURRENT L3 26 524 VOLTAGE LIE A Jann At Os 4 313kV mea AN AAR i AAS T oe AAA ARS ne 147 44 EARTH CURR IE CB OPEN ott It ms 200 450 100 50 o ps 30 100 150 200 250 Kabelabgang J13 02 Jun 1998 20 36 00 000
33. dule is equipped with the DSP and the MC The CAN Open interface the Ethernet interface for the embedded Web server the optical input port for time synchronization are located on the main module as well The optional communication module takes care of the communication with the substation automation system The binary input and output modules interface the primary process to send commands and to acquire status information The analog input module acquires the current and voltage signals both from instrument transformers or non inductive sensors The optional analog 0 4 20 mA output module and analog 4 20 mA input module allow exchanging information with the 4 20 mA or 0 20 mA current loop REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual Analog Output Board Analog Input Module Communication board Analog Input Board Main Board Binary Input Output Board s A050397 Fig 3 4 REF 542plus block diagram The HMI control unit as shown in Fig 3 5 features a back illuminated liquid crystal display LCD eight push buttons several LEDs and an electronic key interface The language of the display can be selected by using the related configuration software tool which is also used to define the protection and the control scheme REF542plus ppm A A050399 Fig 3 5 HMI control unit The left side of the LCD display is reserved for the single
34. e ABB specific The LON LAG 1 4 protocol has specific features for high accuracy time synchronization In this case the REF 542plus units are synchronized from the interbay bus The other protocols MODBUS RTU MODBUS TCP IEC 60870 5 103 and IEC 61850 guarantee an open connectivity to any third party system MODBUS RTU and SPA protocols can run on a module equipped with two serial channels Simultaneous use of the two serial channels as physical redundancy is not possible The connection to two different SCADA systems is possible for the SPA protocol provided that one of the two SCADA systems is for monitoring purposes only Moreover the presence of the Ethernet port located on the mainboard of the REF 542plus extends the potential future connectivity of the REF 542plus unit Multiport communication can now be operated for example ABB LON protocol on the optional communication module and simultaneously MODBUS TCP and the embedded Web server Embedded Web Server REF 542plus can be equipped with an embedded Web server for monitoring purposes WEB REF The Ethernet port on the main module provides connectivity to the Web By using a standard PC with a commercial Web browser the user can gain access to the substation units using the Web facilities Monitoring the substation units is then possible from everywhere the implemented security mechanism prevents unwanted accesses and guarantees the required safety As soon as the browser is conn
35. ected to the REF 542plus unit the switchgear overview is displayed From here the user can scroll through the single line diagram Clicking on the address button the specific REF 542plus unit single line diagram is loaded with also all the information that would be normally available standing in front of the HMI REF 542plus data are available in read mode only monitoring access WEB REF makes also available the possibility to send SMS messages or e mail via the GSM network upon specific user defined condition trips alarms etc A suitable GSM modem must be connected to the mainboard module 1MRS755859 ae Protection and Switchbay Control REF 542plus nit Technical Reference Manual 4 11 wT Patt Motor WEBREF A051259 Fig 4 10 1 REF 542plus main page as seen from the Internet browser A051260 Fig 4 10 2 Switchgear equipped with REF 542plus single line diagram as seen from the Internet browser CAN Open only for ABB switchgear companies The REF 542plus is equipped on the main module with a CAN Open standard interface The CAN Open interface has two main purposes e Replacing the switchgear internal hard wired connections by means of a high speed digital bus e CAN Open standard devices connectivity intelligent IO modules sensors and so on 29 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 30 Replacing the switchgear inte
36. ection and Switchbay Control REF 542plus Unit Technical Reference Manual Text There is a textual part of the LCD which shows the menu the measurement values the events and any information accessible through the menu structure SLD view The SLD view is the graphical part of the LCD This part shows the single line diagram of the switchgear The status of the primary objects is dynamically updated after every operation for example if the circuit breaker has been opened the SLD view will reflect it Open CB for Fast Opening When pressed simultaneously with the normal open button the Open CB button allows the fast opening of the circuit breaker independently from the selected control mode This feature must be enabled in the unit with the Operating Tool Moreover it is also possible to have several completely user defined command buttons on the HMI These virtual push buttons are available from the dedicated HMI menu During REF 542plus configuration the user defines what command buttons are required Typical examples might be start of a transfer switch or of any other automation sequence fault recorder activation start of a load shedding sequence and so on Due to the user defined command buttons REF 542plus automation capabilities can cope with any requirements 18 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 4 1 4 2 Functions REF 542pl
37. example are not complete and should be taken from the corresponding tables above 57 REF 542plus a Protection and Switchbay Control 1MRS755859 Technical Reference Manual 76 B 6 A333 036SZ B ai arr 1 SW level Base 3 SW level Basic Low For more information see Table 7 14 Cable N None 1 Cable 1 8m 2 Cable 2 5 m For more information see table Cable MI N None A HMI V5 for IEC 48 90 V DC B HMI V5 for IEC 110 240 V DC C HMI V5 for IEC 48 90 V DC with cover For more information see Table 7 12 Housing S Normal W Wide For more information see Table 7 11 Communication N No communication 1 Modbus SPA RS485 2 Modbus SPA glass fibre ST connector For more information see Table 7 10 Analog input 01 Sensors 10 17 Mixed sensors and transformers 30 43 Transformers For more information see Tables 7 7 7 9 Binary I O slot 1 1 Static I O 2 Static I O without check 3 Binary I O version 3 For more information see Table 7 6 Binary I O slot 2 and Binary I O slot 3 For more information see Table 7 6 and page 52 Analog I O modules N No I O module A Analog input module 0 4 20 mA B Analog output module 4 20 mA For more information see Table 7 5 Power supply 1 110 VDC 2 220 V DC 3 48 220 V DC 6 48 220 V DC DNV marine For more information see Table 7 4 Main board B Basic S Stand
38. fety regulations must always be followed The frame of the device has to be carefully earthed The device contains components which are sensitive to electrostatic discharge Unnecessary touching of electronic components must therefore be avoided 10 1MRS755859 ae Protection and Switchbay Control REF 542plus nit Technical Reference Manual General REF 542plus is a Switchgear Multifunction Protection and Switchgear Control Unit and it is the further development of the former REF 542 multifunctional unit Like its predecessor it features the following functions e Protection e Measurement e Control e Monitoring and self diagnosis e Communication All above mentioned and also power quality functions are integrated into a programmable environment The exceptional flexibility and scalability of this new generation device lead to a smart solution where the traditional approach would be ineffective and expensive The following figures Fig 3 1 and Fig 3 2 show examples of the REF 542plus installation in several switchgears A050395 Fig 3 1 REF 542plus installed in gas insulated switchgear GIS REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual A070118 Fig 3 2 REF 542plus installed in an air insulated switchgear AIS REF 542plus is composed of two parts a base unit and a separate human machine interface HMI The base unit conta
39. following Table 6 2 1 illustrates the protection functions technical data Table 6 2 1 ANSI code Protection function and parameters Current protection functions 68 Inrush stabilization N 2 0 8 0 only in connection M 3 0 4 0 with 50 and 51 Time 200 100 000 ms 68 Inrush harmonic Min current threshold 0 05 40 00 In Fault current threshold 0 05 40 00 In Harmonic ratio threshold 5 50 50 Overcurrent I gt gt gt 0 100 40 000 In instantaneous 15 30 000 ms 51 Overcurrent high I gt gt 0 05 40 00 In t 20 300 000 ms 51 Overcurrent low I gt 0 05 40 00 In t 20 300 000 ms 51 IDMT Overcurrent IDMT Inverse time characteristics Normal Very Extreme and inverse definite Longtime minimum time leb 0 050 40 000 In K 0 050 1 500 67 Overcurrent I gt gt 0 050 40 000 In directional high t 40 30 000 ms Direction backward forward 67 Overcurrent I gt 0 05 40 00 In directional low t 40 30 000 ms Direction backward forward Earth Fault 1 51N Earth fault high lo gt gt 0 050 40 000 In t 40 30 000 ms 51N Earth fault low lo gt 0 050 40 000 In t 40 30 000 ms 51N IDMT Earth fault IDMT Curve type standard very extremely or long time inverse definite inverse time characteristic minimum time leb 0 050 40 000 In K 0 050 1 500 39 REF 542plu
40. g device up to 10 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 4 2 4 4 3 Monitoring and self diagnosis The REF 542plus offers several features for monitoring the primary part as well for self diagnosis The following computed quantities are available for primary part monitoring e Maximum and mean currents in the observation period 0 30 min e Sum of interrupted currents e Working hours e Number of switching cycles open close circuit breaker e Spring charging time supervision when applicable e Opening coil supervision The REF 542plus is equipped with self diagnosis routines that constantly check the hardware and software modules status Every REF 542plus binary input and output module is equipped with a watchdog contact that triggers in case of fault or power loss This contact can be used to detect unit failure and to initiate the appropriate actions Analog input channels can be optionally supervised A broken wire in the connection with an instrument transformer or a sensor can be detected and an alarm can be activated Protection REF 542plus offers a wide range of functions for protection As previously mentioned a wide range of protection schemes for the protection of several system components can be configured The available protection functions can be combined together to form the required protection scheme Current protection e Inrush
41. ilable e Standard e Wide In both versions at least the following modules have to be present e The power supply the mainboard e The analog input module e One binary input and output module The standard housing can additionaly house e Another binary input and output module e Alternatively the communication module or the 4 0 20 mA analog output module Backplane differs from 4 0 20 mA analog output module and communication module The backplane type has to be specified The wide housing can additionaly house e Other 2 binary input and output modules e The communication module e Alternatively the 4 0 20 mA analog output module or the 4 20 mA analog input module The 4 20 mA analog input module can be used with the wide housing only Standard housing summary e One power supply e One mainboard module e One analog input module e At most two binary input and output modules e Optionally the communication module or the 4 0 20 mA analog output one 31 REF 542plus Multifunction Protection and Switchbay Control Unit Technical Reference Manual 1MRS755859 32 106 3 0 1 a 5 H a Ke So Fig 5 1 1 Standard housing version dimensions Wide housing summary e One power supply e One mainboard module e One analog input module e At most three binary input and output modules 233 5 0 1 A051268 1MRS755859 Multifunction Protection and Switchbay Control REF
42. ins the power supply the processor board the analog input board and binary input and output I O modules as well as optional modules for supplementary functions The base unit and a HMI are connected with a serial cable The HMI is a stand alone unit with its own power supply It can be installed on the low voltage LV compartment door or in a dedicated compartment close to the central unit The HMI can be used to set the protection parameters to locally operate the switching devices in the switchgear and to visualize events and measurements A shielded isolated twisted pair according to the RS 485 standard interface connects the HMI to the base unit Fig 3 4 shows an installation of the central unit and the HMI Control Unit in the LV compartment of a switchboard for the switchgear 1MRS755859 ae Protection and Switchbay Control REF 542plus nit Technical Reference Manual A070117 Fig 3 3 Mounting of the central unit in the LV compartment and the HMI on the door REF 542plus is a real time system A digital signal processor DSP carries out the measurement and protection functions and a micro controller MC the control functions Due to the task separation there is no impact between the implemented protection scheme and the control scheme to be modified An optional communication processor CP is needed when connecting to a station automation system A block diagram of the REF 542plus is shown in Fig 3 4 The main mo
43. ion functions can be installed inside the REF 542plus unit The maximum number is anyway dependent upon the available processing power Control The control and automation capabilities inside the REF 542plus are extremely powerful Simple interlocking against switching errors as well complex load shedding schemes can be easily implemented with the control possibilities offered by the REF 542plus It is also possible to implement interlocking between the switchgear connected to the same busbar system This requires the availability of status information of the switching devices to and from other switchgear The status information must be provided by 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 4 5 4 6 e Conventional hard wired ring bus system e Using the ABB station automation system with ABB LON protocol per LAG 1 4 which allows horizontal communication among the REF 542plus units connected on the interbay bus e Using the CAN Open digital fieldbus only to be applied by the ABB switchgear companies The REF 542plus foresees different control modes selectable with the control key In local mode the HMI control buttons are used to operate on the primary objects Remote operations are inhibited In remote control mode only switching actions from a remote control device like a station automation system are permitted Local control from the HMI is inhibited All p
44. ization ccceceeeeeeeeeeeeeeeeeeeneeeeeeees 24 4 8 Interface to the primary process ccceeeeeee eaten 25 4 8 1 Analog inputs sacesesscacdensvsesecddsunes desenedacnncters 25 4 8 2 Binary inputs and outputs eeseeeeeeeee eeen 26 4 9 Interfacing a station automation system 27 4 10 Embedded Web Servet ceceeeeeeeeeeeeeeeenees 28 4 11 CAN Open only for ABB switchgear companies 29 5 Construction ssssssssssusnnnnnnnnnnnnnnnnnnnnnnnnnnn nanen 31 5 1 Base unit versions ssseonesnererrerrrrrerrrrrrrnnrrrrrae 31 5 2 Mounting and installation cccceeeeee sence teeta eeee ee 34 O95 JAM ETE E te cak acuta E E 34 6 Technical Galas ceccstxeneratertcasededescvavanceueatletetenevedioenste 37 6 1 Analog INDUIS fec2ccs seen scerscands Used leusewyindsnaneeuseeesduaedetsen 37 6 1 1 Measurements ccccceeceeeeeeeeeeeeeeeeeaees 37 G 152 Protection Aeee e ieuths ce herent 37 6 1 3 Analog input modules cceeeeeeeeeeeee tenes 38 6 1 4 Reaction time cccccceeceeeeee ee eeeeeeeeeeees 38 6 2 Protection functions technical data 6 39 6 3 Configuration restriction 0 ceceeeeee eee ee ee ee eee en teens 43 6 4 Binary inputs and outputs cc ceceeee eee ee ee rere 44 REF 542plus Ha Protection and Switchbay Control 41MRS755859 ni Technical Reference Manu
45. ltage range of 20 90 V DC 6 750132 803 Binary 1 03 20 90 V 14 As no 5 one static output channel V DC with static for energy metering channel 7 750161 801 Binary 1 03 20 90 V 14 As no 5 interconnected binary V DC interconnected inputs input standard 8 750161 803 Binary I O3 20 90 V 14 As no 5 interconnected binary V DC interconnected inputs one static output channel for input with static channel energy metering 9 750132 802 Binary 1 03 80 250 V Standard version with a 50V DC 50 V DC standard threshold value for an application in an auxiliary circuit with a DC voltage range of 80 250 V DC A 750132 804 Binary 1 03 80 250 V As no 9 one static output channel 50 V DC with static for energy metering channel B 750161 802 Binary I O3 80 250 V As no 9 interconnected binary 50 V DC interconnected inputs input standard C 750161 804 Binary 1 03 80 250 V As no 9 interconnected binary 50 V DC interconnected inputs one static output channel for input with static channel energy metering D 750132 805 Binary 1 03 80 250 V Standard version with a 72 V DC 72 V DC standard threshold value for an application in an auxiliary circuit with a DC voltage range of 80 250 V DC 53 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 54 NUMBER CODE NAME DESCRIPTION E 750132 806 Binary 1 03 80 250 V As no D
46. med automation logic is executed cyclically in a PLC style mode The cycle time in the range of ten millisecond is depending upon the logic complexity The REF 542plus has an internal fixed compensation both for the relay output contact actuation time and for the logic execution time Nevertheless the actual trip information processing time depends upon the complexity of the actual logic programmed inside the unit As a result the protection reaction time in the worst case can be the user defined preset delay plus twice the cycle time 1MRS755859 Multifunction Protection and Switchbay Control Unit Technical Reference Manual REF 542plus 6 2 Direct channel In extremely demanding applications the protection has to react as fast as possible and the system behavior has to be absolutely deterministic The REF 542plus offers then to the protection system designer the direct channel option Using this option the programmed logic execution flow inside the unit is skipped and the trip command is instantly delivered to the switching object representing the circuit breaker All the interlocking conditions are nevertheless respected and assured Should the circuit breaker be blocked for any reason for example insufficient SF6 pressure the trip command is not actuated The direct channel option grants then an absolutely deterministic behavior to the REF 542plus protection functions Protection functions technical data The
47. nual 6 1 3 6 1 4 38 Table 6 1 2 5 Current and voltage sensor input values Voltage at rated current 150 mV rms Voltage at rated voltage Un 2 V rms Rated frequency fn 50 Hz or 60 Hz Analog input modules Several different types of analog input modules are available to manage the different protection functions The modules are equipped with the following combinations of input current and or voltage transformers e 3 or 6 current transformers for phase currents e 3 or 6 voltage transformers for phase to ground or phase to phase voltages e 1 or 2 current transformers for residual currents e 1 or 2 voltage transformers for residual voltages There are also versions for sensor inputs and mixed ones to connect both conventional instrument transformers and sensors At most eight input channels are available If programmed input channels can be supervised Reaction time In this context the protection reaction time is defined as the time elapsed between the fault detection and the closing of the contact that gives supply to the circuit breaker tripping coil or the equivalent tripping mechanism for magnetic drive or contactors This time is the sum of different intervals 1 Fault detection time 2 User defined pre set delay for definite time protection functions 3 Trip information processing 4 Relay output contact actuation The REF 542plus is a protection and control unit and the program
48. o red when user defined alarms become true Several arbitrary alarm conditions can be defined and configured with the operating tool Alarm conditions can be a trip of a protection function loss of SF6 in the circuit breaker and so on When this LED is on it is not possible to close the circuit breaker or to download a new configuration The alarm condition has to be removed and the alarm must be acknowledged first Interlocking Error The interlocking error LED is usually green The LED turns temporarily to red when the user attempts an operation that would violate the programmed interlocking conditions for example switching a disconnector with the circuit breaker in closed position REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual Electronic Keys Sensor The Electronic Keys Sensor recognizes electronic keys Two different electronic keys are provided One key allows changing the parameters of the protection functions The other one is used to change the control modes The sensor automatically detects which key has been inserted The two keys are labeLED Protect and Control to distinguish them When required a general key to access both modes can be provided It is also possible to program an 8 character custom code in the keys to increase the security levels or for any other specific reason This can be done easily with a program available on request Object Control
49. odule with mechanical output relays version3 Binary input and output modules type BIO3 are available in several versions e Voltage range low with inputs able to withstand a voltage range from 20 90 VDC The input threshold activation level is 14 VDC e Voltage range high with inputs able to withstand a voltage range from 80 250 VDC The input threshold activation level is 50 VDC e Voltage range high with inputs able to withstand a voltage range from 80 250 VDC The input threshold activation level is 72 VDC e Voltage range high with inputs able to withstand a voltage range from 80 250 VDC The input threshold activation level is 143 VDC All above mentioned modules can be equipped with an optional static output power transistor on binary output 7 instead of the normal electromechanical contact This static output is usually needed to feed external energy meters with pulses To make wiring easier there are also module versions for the wide voltage range high and low available with the binary inputs minus connected together on the module by an internal line The following Table 6 4 1 1 shows the main features 1MRS755859 Multifunction Protection and Switchbay Control Unit Technical Reference Manual REF 542plus 6 4 2 Table 6 4 1 1 BIO3 module features 14 input channels Possible auxiliary voltage ranges 20 90 V DC threshold 14 V DC 80 250 V DC threshold 50
50. of a hazard which could result in electrical shock The warning icon indicates the presence of a hazard which could result in personal injury the concept discussed in the text It might indicate the presence of a hazard which could result in corruption of software or damage to equipment or property O The caution icon indicates important information or warning related to A The information icon alerts the reader to relevant facts and conditions Although warning hazards are related to personal injury it should be understood that operation of damaged equipment could under certain operational conditions result in degraded process performance leading to personal injury or death Therefore comply fully with all warning and caution notices Intended audience This manual is intended for operators and engineers to support normal use of as well as configuration of the product REF 542plus Multifunction Protection and Switchbay Control Unit Technical Reference Manual 1MRS755859 1 4 Product documentation Name of the Manual Document ID Real Time Clock Synchronization IRIG B Input Time Master 1MRS755870 Product Guide 1MRS756269 Configuration Manual 1MRS755871 iButton Programmer User Manual 1MRS755863 Manual Part 3 Installation and Commission 1 VTA100004 Manual Part 4 Communication 1VTA100005 Motor Protection with ATEX Certific
51. one static output channel 72 V DC with static for energy metering channel F 750132 807 Binary 1 03 80 250 V Standard version with a 143 V DC 143 V DC standard threshold value for an application in an auxiliary circuit with a DC voltage range of 80 250 V DC G 750132 808 Binary 1 03 80 250 V As no F one static output channel 143 V DC with static for energy metering channel Static I O 14 inputs 7 power outputs 2 signal outputs and 1 watchdog output BIO 3 14 inputs 6 power outputs 2 signal outputs and 1 watchdog output 76B6A33 Binary IO Slot 2 Version of binary I O Possible selection depends on the selected version of the binary I O 1 If no binary I O is needed the slot can remain empty The corresponding code can be taken from Table 7 6 76B6A333 Binary IO Slot 3 Version of binary I O Possible selection depends on the selected version of the binary I O 1 If no binary I O is needed the slot can remain empty The corresponding code can be taken from Table 7 6 76B6A33303 Analog Input XX There are three different types of analog input versions which can be selected as shown in the following tables Table 7 7 Sensors NUMBER CODE DESCRIPTION 01 750138 803 Analog Input sensors version Table 7 8 Mix of sensors and transformers NUMBER CODE DESCRIPTION 10 750170 843 3 sensors 3 sensors 1 CT 0 2 A 1 VT 11 750170 846 3 sensors 3 VT 1 CT
52. ossibilities to operate on the primary objects can be inhibited by setting the unit to the no control mode Event recording The last 30 recorded events can be shown locally on the HMI Most of the events are related to protection activities In addition to displaying the event name additional information about the event time date and the RMS value of the short circuit current switched off by the CB are provided Each event is stamped with the time and the date Events are stored in non volatile memory so they are maintained also in case of a power loss ABB REF542plus Events wh IBB Error SEGEGUEEEROR Alarm 21 2006 05 25 97 45 15 959 Interlocking Overcurrent inst M2 Start L1 73 ms AUMEGUOOEEOS 22 2006 85 25 07 45 15 859 us Overcurrent inst enn a O nmm Open e cB 23 2006 05 25 07 45 15 962 Overcurrent inst 8 J is Tripe 559 A OOS E A050403 Fig 4 5 1 Event list on the LCD of the HMI Fault recorder The REF 542plus unit is equipped with a powerful and flexible fault recorder function This function can be used to record at most eight analog input channels and thirty two binary signals The analog input signals are recorded with a sampling rate of 1 2 kHz for a time interval of at least 1 second and for a maximum of 5 seconds The recording time is a combination of pre and post fault time The total recording capability is 5 seconds There can then be configured 5 records of 1 secon
53. rnal hard wired connections by means of a high speed digital bus allows building new highly standardized switchgear with a more efficient life cycle Fast interlocking data among several REF 542plus units can be exchanged on the CAN Open bus The utilization of the CAN Open bus is limited to the ABB switchgear A company Stand alone devices may not be operated with theCAN Open system In addition the digital bus moves the intelligence closer to the process allowing the construction of switchgear systems with increased configuration and maintenance flexibility The CAN Open interface allows connecting any off the shelf product compliant with the CAN Open standard thus making the automation capabilities of the REF 542plus almost unlimited The Fig 4 11 1 describes an architecture where two REF 542plus units and some IO modules are connected with the CAN Open FIELDBUS REFS42plus osmi H Intra panel wiring circuit breaker l Panel A Panel B Network management tool A051257 Fig 4 11 1 REF 542plus CAN Open connectivity 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus Unit Technical Reference Manual 5 1 Construction Base unit versions The REF 542plus base unit housing is made from aluminum sheets Its exterior is chromatized both to protect the housing against corrosion and to improve immunity against EMC disturbances Two different housings are ava
54. s Multifunction Protection and Switchbay Control Unit Technical Reference Manual 1MRS755859 40 67N Earth fault lo gt gt 0 050 40 000 directional high t 40 30 000 ms Uo gt 0 02 0 70 Un direction forward backward net type isolated sin phi earthed cos phi 67N Earth fault lo gt 0 050 40 000 In directional low t 40 30 000 ms Uo gt 0 02 0 70 Un direction forward backward net type isolated sin phi earthed cos phi 67S Earth fault lo gt 0 050 2 000 In directional t 100 10 000 ms sensitive Angle alpha 0 0 20 0 Angle delta 180 0 180 0 Uo gt 0 05 0 70 Un 67N Sector Earth fault Direction Enable directional behavior Disable non directional Sector 10 thresholds available directional behavior Start Criteria neutral current magnitude neutral current basic angle lo gt 0 002 8 000 In Uo gt 0 004 0 700 Un t 30 60 000 ms Sector Basic Angle 180 0 180 0 Sector Width 0 0 360 0 lo gt drop off delay 0 1000 ms Uo gt drop off delay 0 1000 ms Voltage protection functions 59 Overvoltage U gt gt gt 0 100 3 000 Un instantaneous t 15 300 000 ms 59 Overvoltage high U gt gt 0 100 3 000 Un t 40 30 000 ms 59 Overvoltage low U gt 0 100 3 000 Un t 40 30 000 ms 27 Undervoltage U lt lt lt 0 10 1 20 Un in
55. s 4 5 6 are used for phase to earth voltage measurements and protection of the incoming feeder Channel 7 is used for the residual current for earth fault protection while channel 8 is used for busbar phase to phase voltage to perform the synchrocheck 67 REF 542plus a Protection and Switchbay Control 4MRS755859 ni Technical Reference Manual m lt K s z L3 4 X80 s rt aaa 11 1A ee Rens 7 6A All TULA k 3 22 1A ii pier 18 5A Al2 14 T 10 1A psy banc edad 6 5A AI3 TUL3 g s2 I TV1 L1 A La 21 n BE o T T TV2IL2 7 A gt 5 z j 3 i AIS 3 IT T 4 TV3 L3 A 23 pee cee a 24 1A 7755 20 5A Al7 fe 18 8 Als 4 A051284 68 Fig 8 3 3 1 Incoming feeder with synchrocheck capability 1MRS755859 Multifunction Protection and Switchbay Control Unit Technical Reference Manual REF 542plus 9 Abbreviations Abbreviation Description CAN Controller area network CB Circuit breaker CT Current transformer DC Direct current EMC Electromagnetic compatibility GIS Gas insulated switchgear GPS Global positioning system HMI Human machine interface IDMT Inverse definite minimum time characteristic LAG Lon application guide LCD Liquid crys
56. sed in a heterogeneous way but in most cases with instrument transformers only For example channel 7 in group 3 can be used for earth fault current with current transformer type input or for the synchro check function with voltage transformer type input The most common configuration uses three current and three voltage inputs and one earth fault current input All values are shown on the display as primary values The values registered over an extended time period for example energy number of CB operations and maximum and measurement values are permanently saved Even after power interruptions this data is still available Using this common configuration the following measured values are displayed Directly measured values e Phase currents three phases e Phase line voltages three phases e Residual current it can be calculated e Residual voltage it can be calculated e Frequency Calculated values The following values can be calculated from the measured quantities listed above e Phase or Line voltages three phases e Average value maximum value current three phase determined over several minutes e Apparent active and reactive power e Power factor e Active and reactive energy e THD total harmonic distortion Other values Moreover the following quantities can be provided for monitoring purposes e Operating hours e Switching cycles e Total switched currents e Metering pulses from an external meterin
57. sed region slope 0 01 2 00 Slightly biased region limit 0 01 2 00 Ir Heavily biased region slope 0 10 1 00 Relay operate angle 60 180 t 0 04 100 00 s Frequency protection function 41 REF 542plus Unit Multifunction Protection and Switchbay Control Technical Reference Manual 1MRS755859 81 Frequency protection Start value 40 00 75 00 Hz Frequency gradient 0 01 1 00 Hz s t 0 10 30 00 s U lt 0 10 1 00 Un Trip logic freq only freq AND freq gradient freq OR freq gradient Frequency su pervision Frequency supervision Start value 0 04 5 00 Hz Time 1 00 300 00 s Distance protection function 21 Distance Net type high low ohmic protection earth start IE gt used unused switching onto faults normal overreach zone trip after start Signal comparison overreach scheme time set 30 300 000 ms U l Start I gt IE gt and IF gt 0 05 4 00 In characteristic UF lt 0 05 0 90 Un Phase selection cyclic acyclic Earth factor factor k 0 00 10 00 angle k 60 60 3 Impedance 1 overreach stage and 1 autoreclose control stage R 0 05 120 00 Ohm secondary values X 0 05 120 00 Ohm secondary values t 20 10 000 ms Angle delta 1 45 00 0 00 Angle delta 2 90 00 135 00 1 directional stage Angle delta 1 45 00
58. sensors cover a range between 0 5 to 2 0 of the rated current The 80 A current sensors for example are very suitable for applications between a current range of 40 A to 160 A Other current sensors are defined for the range 120 A to 480 A 320 A to 1280 A and 800 A to 3200 A The voltage sensor is based on the resistive divider principle Therefore the voltage sensor is linear throughout the whole measuring range The output signal is a voltage directly proportional to the primary voltage The following Fig 4 8 1 1 and Fig 4 8 2 1 shows a combined sensor The current and voltage sensors are encapsulated into a single resin unit Therefore they are referred to as combined or combi sensors A050502 Fig 4 8 1 1 Combined sensor Coupling electrode is incorporated in the sensors for voltage detecting systems VDS Binary inputs and outputs The REF 542plus unit acquires the primary objects status with auxiliary contacts which are read by binary inputs and sends commands using binary outputs Several signals coming from other components are also monitored Among others the following operations are implemented using binary inputs and outputs e Primary objects control and interlocking in the switchgear e Primary objects status acquisition for example circuit breaker in opened closed position e Circuit breaker spring supervision when applicable 1MRS755859 Multifunction Protection and Switchbay Control REF 542plus
59. stantaneous t 15 30 000 ms 27 Undervoltage high U lt lt 0 10 1 20 Un t 40 30 000 ms 27 Undervoltage low U lt 0 10 1 20 Un t 40 30 000 ms 25 Synchronism Delta Voltage 0 02 0 40 Un check Delta Phase 5 50 t 0 20 1000 00 s 59N Residual Uo gt gt 0 05 3 00 Un overvoltage high t 20 300 000 ms 59N Residual Uo gt 0 05 3 00 Un overvoltage low t 20 300 000 ms Motor protection functions 1MRS755859 Multifunction Protection and Switchbay Control Unit Technical Reference Manual REF 542plus 49 Thermal overload protection with total memory Nominal Temperature 50 400 C nominal Temperature at nom Nominal current IMn 0 100 5 000 In primary value of the nominal motor current Initial Temperature 10 400 C Time Constant at lt 0 1 IMn 10 100 000 s Time Constant at 0 1 IMn lt I lt 2 IMn 10 20 000s Time Constant at gt 2 IMn 10 20 000 s Trip Temperature 50 400 C Warning Temperature 50 400 C Environmental Temperature 10 50 C Reset Temperature 10 400 C 51MS 51LR 66 Motor start Locked rotor definite time characteristic Number of starts IMn 0 200 2 000 IMn motor current 2 Is 1 000 20 000 IMn start value t 40 30 000 ms I gt 0 200 0 800 Is motor start IMn 0 200 2 000
60. tables The codes mentioned below are mostly used for the operations field of REF 542plus The codes are slightly different in DNV and ATEX Because ATEX certification is only valid for a specific version of REF 542plus it is required to obtain a new certification after each release The release 1 1 of ATEX certified units is REF 542plus with version V4C02 The release 2 2 is REF 542plus with version V4D02 ATEX certified units of these release versions are delivered with the previous version of the HMI V4 DNV certification is used for marine applications Table 7 1 Family code NUMBER CODE NAME DESCRIPTION 7 REF 542plus Product family for the feeder terminal unit REF 542plus 76 51 REF 542plus nak Multifunction Protection and Switchbay Control Technical Reference Manual 1MRS755859 Table 7 2 Application areas NUMBER CODE NAME DESCRIPTION 6 REF 542plus Normal operation A REF 542plus DNV Marine and offshore application B REF 542plus ATEX 1 Protection of motor in an explosive area Release 1 1 D REF 542plus ATEX 2 Protection of motor in an explosive area Release 2 0 F REF542plus ATEX 2 5 Protection of motor in an explosive area Release 2 5 76B Table 7 3 Mainboard versions NUMBER CODE NAME DESCRIPTION B 751021 Basic Version with RJ 45 Ethernet port 802 S 751021 Standard Version with additional IRIG B and 803 C
61. tal display LED Light emitting diode LON Local operating network LV Low voltage MC Micro controller MV RMS Medium voltage Root mean square RTU Remote terminal unit SLD Single line diagram SPA Data communication protocol developed by ABB TCP Transmission Control Protocol VDEW Association of German Electrical Utilities VDN Association of German Electrical Utilities VT Voltage transformer 69 AL ED ED PAID ED ABB Oy Distribution Automation P O box 699 Fl 65101 Vaasa FINLAND 358 10 22 11 358 10 22 224 1094 http www abb com substationautomation 1MRS755859 EN 2 2008
62. ure and the next start up see the programming manual for more details e At most 62 switching objects can be configured a switching object is used to represent a primary object like a circuit breaker a contactor and so on e At most 15 energy counters can be configured e At most 10 analog threshold objects per analog input can be configured analog threshold objects allow to undertake some actions depending upon the level of voltage and current see the programming manual for more details 43 REF 542plus Multifunction Protection and Switchbay Control 4MRS755859 Unit Technical Reference Manual 6 4 6 4 1 44 LCD and HMI e At most ten icons can be displayed on the LCD e At most eight switching devices icons can be displayed on the LCD e When binary I O modules with mechanical relays are used a maximum of seven switching devices can be controlled e At most 40 lines can be drawn e At most 32 signaling LEDs organized in 4 pages can be configured e At most 48 analog warning objects can be installed Binary inputs and outputs Binary input and output modules are available in two main versions with electromechanical relays and with static outputs power transistor types For both of them binary inputs are of the same type insulated with optic couplers Inside a REF 542plus unit only modules of the same type have to be present It is not possible to have both static and electromechanical modules BIO m
63. us switchgear protection and control unit integrates all secondary functions in a single unit This multifunctional unit features also a self monitoring function All functions are designed as freely configurable software modules Therefore a wide range of operation requirements in MV stations can be met without any problems The versatility of the software makes it possible to use the REF 542plus on every switchgear irrespective of the specific application required Configuration The REF 542plus unit is configured for the specific application using the Operating Tool running on a personal computer With the graphical editor the needed functions blocks are combined together The available protection functions are represented with specific function blocks which can be combined with logic function to define the required protection and automation scheme The flexibility of REF 542plus is advantageous for defining control functions and automation sequences which can for example include the interlocking of the switching devices blocking the release of specific protection functions as well as starting switching sequences The REF 542plus unit provides a wide range of logical functions so that each specific requirement can be met The functions include logical gates such as AND OR timers counters pulse generators flip flops and so on All functions in the switchgear are specified in collaboration with ABB The REF 542plus configuration is a file

REF 542plus

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