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Application of high-speed TRIP contacts

1. LCD CLOSE contact L1 assignment 1 ms Can be modified by User in Master View of EuroCAP Synchronized close TRC94 Trip Logic function CB1Pol Circuit Breaker Control function SYN25 Synchrocheck function Figure 1 1 Principle of TRIP command processing 5 20 Application of high speed TRIP contacts 2 Application of TRIP relays for commands of fast protection functions 2 1 Aim of application of TRIP relays The main aim of application of TRIP relays is to bypass the time delay of the mechanical contacts For this aim there is a slow mechanical contact and a fast electronic switch in serial connection 2 2 Control of the TRIP relays 2 2 1 2 2 2 The operation of the TRIP relays is performed in two steps e Preparation of the circuit for the trip command e Trip command generation Preparation of the circuit for the trip command At the time when a protection function detects violation of the setting value of the characteristic quantity the preparation process closes the slow mechanical contact preparing the circuit for command generation The trip command generation At the moment when the fast protection function after some repeated checks i e the timeout of the internal time counter decides to generate the trip command then the fast electronic switch performs the operation generating the trip command to the circuit breaker This command is generated via
2. This is usually the fourth contact of the TRIP hardware module The programming of the interlocking function must be performed by the user Figure 5 5 includes the application of the REC79 HV automatic reclosing function The start signal Trip StartAR can be programmed by the user The automatic reclosing function is started only if the preceding trip command was performed by the circuit breaker i e for example that the function is not disabled The AND gate on this Figure performs this checking The REC 79 HV automatic reclosing function needs the status signal indicating three phase open state of the circuit breaker connected to the 3PhTr input of the REC79 HV function block This signal is generated by the TRC94_ PhS module on the output Tr3Ph If the automatic reclosing is to be disabled after a fault caused by a manual close command then the CmdOn output of the CB3Pol module must be connected to the ManCl input of the REC79 HV automatic reclosing function If there is no synchro check function configured in the device then connect the yoynRel input of the REC 79 HV automatic reclosing function to logic TRUE state The evaluation of the status signals indicating the open state of the circuit breaker poles in OR gate is needed for the operation of the automatic reclosing function According to the scheme of Figure 5 5 the open state is indicated by at least one pole open state of
3. Trip SinglePh Trip 3Ph etc only As an example the Trip_3ph signal collects the commands of all not fast operating protection functions which can generate three phase trip command The detailed description of the inputs and operation of the TRC94 PhS trip logic function block can be found in another document In this configuration also the CB3pol circuit breaker control block is applied This block is needed if e g the front panel LCD of the device can display an active control scheme For this purpose the signals Bln_L in the Figure are the status signals of the circuit breaker poles connected to the dedicated binary inputs of the device The signals Local Remote enable the local or remote control of the primary equipment In the standard factory configurations these signals are programmed in the factory but they can be modified also by the user According to Figure 5 5 the local command issued via LCD of the device or the remote command received from the remote SCADA system is processed by the 1 RC94_ PhS module Output CmdOff This control is programmed in the factory to BOut_xx variables The user can perform any modification in the graphic programming The close command is connected directly to a dedicated BOut_xx variable This directs usually the fourth contact of the TRIP hardware module In Figure 5 5 the close command is connected directly to a dedicated output
4. additional graphic programming only if e g the operation is to be visualized also by signal relays If the configuration includes protection functions blocks the trip command of which does not need fast contact operation then these commands must be additionally assigned to the TRIP relay outputs To do this the user collects these commands with OR connection and assigns them to the dedicated inputs of the TRC94_ PhS module This Figure shows the collected signals E g Trip SinglePh Trip 3Ph etc only As an example the Trip_ 3ph signal collects the commands of all not fast operating protection functions which can generate three phase trip command The detailed description of the inputs and operation of the TRC94 PhS trip logic function block can be found in another document Version 1 1 14 20 Application of high speed TRIP contacts In this configuration also the CB3pol circuit breaker control block is applied This block is needed if e g the front panel LCD of the device can display an active control scheme For this purpose the signals Bln_L in the Figure are the status signals of the circuit breaker poles connected to the dedicated binary inputs of the device The signals Local Remote enable the local or remote control of the primary equipment In the standard factory configurations these signals are programmed in the factory but they can be modified also by the user If there is no
5. inputs of the TRC94 PhS module This Figure shows the collected signals E g Trip SinglePh Trip 3Ph etc only As an example the Trip_ 3ph signal collects the commands of all not fast operating protection functions which can generate three phase trip command The detailed description of the inputs and operation of the TRC94 PhS trip logic function block can be found in another document Version 1 1 12 20 Application of high speed TRIP contacts An extension to the example in Figure 5 2 is that in this configuration also the CB3pol circuit breaker control block is applied This block is needed if e g the front panel LCD of the device can display an active control scheme For this purpose the signals Bln_L in the Figure are the status signals of the circuit breaker poles connected to the dedicated binary inputs of the device The signals Local Remote enable the local or remote control of the primary equipment In the standard factory configurations these signals are programmed in the factory but they can be modified also by the user If there is no synchro check function activated in the device connect the input SynOK of the CB3Pol to logic TRUE state Figure 5 2 the local command issued via LCD of the device or the remote command received from the remote SCADA system is processed by the TRC94_ PhS module Output CmdOff This control is programmed in the factory to BO
6. not connected to the device accordingly the steady TRUE state signal is connected to the CBRdy input of the REC 79 HV automatic reclosing function If the real signal is available the signal must be connected similarly The close command of the REC 79 HV automatic reclosing function is connected via OR gate to the dedicated close contact An extension to the example in Figure 5 3 is the close command to the circuit breaker is generated by synchro check The enabling signal for the close command is generated by the SYN25 software module This module is described in details in a separate document The needed input signals indicating the state of the voltage transformers VTSBIk and Bus1VTSBIk must be programmed graphically The output signal RelA of the SYN25 software module enables the closing operation of the REC 79 HV automatic reclosing function via its SynRel input For manual close commands the output signal RelM of the SYN25 software module enables the closing operation of the CB3pol via its SynOK input Version 1 1 17 20 Application of high speed TRIP contacts 5 5 Closing the circuit breaker with synchro check and synchro switch Z1 I0C50 50N and SOTF have fix connection to TRC94 Fast EQU Trip outputs of TRC94 have fix connection to Trip contacts Trip assign SynSW output must be assigned to BOut_X Close in Fast_L1 contacts Figure 5 5 Example closing
7. synchro check function activated in the device connects the input SynOK of the CB3Pol to logic TRUE state According to Figure 5 3 the local command issued via LCD of the device or the remote command received from the remote SCADA system is processed by the 1 RC94_ PhS module Output CmdOff This control is programmed in the factory to BOut_xx variables The user can perform any modification in the graphic programming The close command is connected directly to a dedicated BOut_xx variable This directs usually the fourth contact of the TRIP hardware module In Figure 5 3 the close command is connected directly to a dedicated output This is usually the fourth contact of the TRIP hardware module The programming of the interlocking function must be performed by the user An extension to the example in Figure 5 2 is the application of the REC79 HV automatic reclosing function The start signal Trip StartAR can be programmed by the user The automatic reclosing function is started only if the preceding trip command was performed by the circuit breaker i e for example that the function is not disabled The AND gate on this Figure performs this checking The REC 79 HV automatic reclosing function needs the status signal indicating three phase open state of the circuit breaker connected to the 3PhTr input of the REC79 HV function block This signal is generated by the TRC94_ PhS mo
8. the TRC94 PhS or via the simplified TRC94 trip logic function blocks NOTE If the TRIP command is not received within the expected time delay then the command preparation resets after 50 ms When the device is tested in the laboratory e g for measuring the limits of the distance protection characteristic this can result a cyclic closing and opening of the mechanical contact and rattling can be heard This does not mean faulty operation of the device 2 3 The factory programming for relay control For the trip command of protection functions where the requirement is the fast operation distance protection first zone line differential protection transformer differential protection fast overcurrent stage synchronous switching etc the process of preparation and command generation is programmed in the form of Fast logic The alignment of the TRIP command is the task of the TRIP logic function block All devices operating with TRIP binary output module has a configured TRC 94 simplified or a TRC 94 PhS TRIP logic function block This converts e g the trip command due to phase to phase fault to a three phase trip command or extends the duration of the command according to the parameter setting All these are described in the dedicated document The fast TRIP commands are assigned to the TRIP relay output contacts according to the factory configuration but the user has a possibility to modify or extend this assignment
9. using the EuroCAP configuration software The factory assignment is described in the user manual of the given device configuration To ensure fast operation this Fast logic is performed in each sampling cycle 1ms Version 1 1 6 20 Application of high speed TRIP contacts 2 4 Changing the TRIP command assignment The user has a possibility to modify or extend the TRIP command assignment using the EuroCAP configuration software The menu item to be started is shown in Figure 2 1 DistProt H Hardware configuration B Software configuration Functions Matrix User logic Events Disturbance recorder Counters Trip signals Trip assignement 4444 TEC 61850 System Figure 2 1 Menu item for TRIP command assignment As Figure 2 2 shows the signal of type TripLogic Output this is the command generated by the TRIP logic function block can be assigned to a Trip Contact type relay output The dialog window of the EuroCAP software selects these types of signals only the available signals however can be assigned freely Type Defined by RiootFunctionBlock Mame Trip ssigni Title TripLogic output T Trip contact Cc 4004 Trip Contact Tripontact_EO2 Trip Figure 2 2 Changing the TRIP command assignment Version 1 1 7 20 Application of high speed TRIP contacts The assigned signal is the input of an OR gate As it is described below several o
10. 1 1 9 20 Application of high speed TRIP contacts The pre configured TRIP commands are aligned by the CB control function block the output of which is the CmdOff TRIP command This one and several other signals can be programmed by the user to the output TRIP contact of the device using the graphic logic editor of the EuroCAP configuration software Additionally the output signals of the TRC94_ PhS trip logic or those of the TRC94 simplified trip logic block can be programmed here These function blocks are described in separate documents The output signal of the graphic logic editor is the BOut_X logic variable where X is the identifier of the relay module and the contact e g BOut_E02 3 1 Graphic editor for the signal logic For the protection functions the operation of which are not required being extreme fast in the range of one network period the trip command must be assigned to the trip contacts usually by the user These logic assignments can be programmed also in the factory but the user can modify or extend them according to the requirements To do this the graphic editor of the EuroCap configuration tool must be applied with Master access rights 3 2 The process of command generation lf a simple protection function generates a trip command then this logic signal is present on the dedicated output of the function block see the description of the function blocks The operation of th
11. 6 2 4 Changing the TRIP Command assignment 00cccceecseeeeeeeeeseeeeeeeeeseeeeeeeesaaeeeeeeeeas 7 2 5 Fast operation of the ely Swacniperiirresincatnetsenixnednceineieaivnedientariaesdcaidcaneneinniniaimaiieiees 8 3 User application of the TRIP relays cccccecccccssseecceesececeeseecseeseeecsaueeeesaseesseseeessaneeessaaeees 9 3 1 Graphic editor for the Signal lOGIC cccceeccceeceeeeeeeeeeeeeeeeeeeseeeeeeeeesaeeeeeeesaeaeeeeeeaas 10 3 2 The process Of command generation ccccccccccssseeeeeceeeeeeeeeeeeeeeceeesaeeeeeeeesaeeeeeeeeeas 10 4 Control of Signal relay outputs cee ccccccseeeceeeceeeeeeeeeeaeeeeeeeceeaeeeeessseaeeeeeesseasseseeseaaseeesesaaess 10 5Examples 11 51 Applicaionofthe TAME IONIC iscsi vicsnnaainanninsvaanaisincaneiesduaconansreninnsina guitandeenenaaaremanawnans 11 5 2 Application of circuit breaker Control DIOCK ccccccccsseeeeeeeeeeeeeeeeseaeeeeeeeeeaeeeeeeeeeas 12 5 3 Automatic reclosing and circuit breaker control cccccceeceeceeeeeeeeeeeseeeeseeeeseeeees 14 5 4 Closing the circuit breaker with SyNChro Check ccccccssscceceseceeeeeseceeeeeeeeseaeeeeeees 16 5 5 Closing the circuit breaker with synchro check and synchro switch c ss0sece 18 Version 1 1 3 20 Application of high speed TRIP contacts 1 Relay output modules of the EuroProt system 1 1 Types of the relay output modules of the EuroProt system Basically there a
12. Application of high speed TRIP contacts Application of high speed TRIP contacts User s manual version information Merrion Dau aon Compiled by Preliminary 30 10 2011 10 2011 Preliminary version version Petri 12 08 2012 Description of the assignment for the fast trip a contacts 07 02 2013 Figure Principle of TRIP command processing Gunthner updated Csipke Version 1 1 2 20 Application of high speed TRIP contacts Contents 1 Relay output modules of the EuroProt system ccccccecesseeeeeeeeeeeeeeeeeesaaeeeeeeessaaeeeeeessaaeeeees 4 1 1 Types of the relay output modules of the EuroProt system ccccccseeeeeeeeeeeeeeeees 4 1 2 Operating modes of the relay contacts ccceeceeeeeeceeeeeeeeeeeeeeeeeeesaaeeeeeseeeeseesaaaeeees 4 2 Application of TRIP relays for commands of fast protection functions ce ceeeeeeeeeeeeeeeeeees 6 2 1 Aim of application of TRIP relays cccccceccccsseseecceeeeeeceeeseeceeseeeceaseeesseeseesseeseeeeas 6 2 2 Control of the TRIP relayS ccccccssssccccccssseeceeceseeeeeesseeeseeeeseseaeeeeeseeaeeeeessaageeeeeeeas 6 2 2 1 Preparation of the circuit for the trip COMMANG cccseeecccseeeeeeeeeseeesaeeeeeeneeeees 6 22 2 TNE trip command generation aowescccecceseicccczeccevacedcsseaveacersevesceasweiesexecedsseeaceeneniones 6 2 3 The factory programming for relay control cccccccseeeeecseeeeeeceeeeeeeseeeeeeeeeeeeeseeeeeas
13. atile user status Figure 2 4 Fast LI contact assignment The processing of these fast signals is performed in a single step the possibility for command preparation in the first step and additionally the TRIP command generation in the second step is not offered for the user To perform this assignment the application of the EuroCap configuration program in Master level is needed The selected signal is the input of an OR gate To this gate additional other signals are connected as it is described in the previous chapter or in the description below IMPORTANT NOTE The contacts of a TRIP hardware module are configured in the factory as Fast L1 contacts the user does not need to define them additionally 3 User application of the TRIP relays The contacts controlling the circuit breaker operation can be programmed also by the user Additionally to the command of the factory configured protection functions the user Can assign signals to the channels of the TRIP hardware module The two steps for the command generation however as it is described in the paragraph above cannot be applied by the user In this case the source of the signals can be e Pre configured TRIP commands o Received from the SCADA system via communication channels o Generated by the user applying the front panel LCD of the device e Any additional binary signals e g an external command received by the binary input module of the device Version
14. cts Trip assign Figure 5 4 Example closing the circuit breaker with synchro check Figure 5 4 shows an example for the application of SYN25 cynchro check function block In this Figure it is supposed that the fast protection functions operate according to the factory configuration and they control the TRIP contacts applying two steps of the preparation and command generation phases This part of the program is not visible in Master level The description of the fast operating protection functions are listed in the configuration description of the devices The outputs of the TRC94_PhS trip logic block are assigned to the output channels of the TRIP hardware module This assignment which can be modified also by the user is made not here but in the TRIP assignment menu of the EuroCAP configuration software Consequently the Figure is complete related to the outputs the user needs additional graphic programming only if e g the operation is to be visualized also by signal relays If the configuration includes protection functions blocks the trip command of which does not need fast contact operation then these commands must be additionally assigned to the TRIP relay outputs To do this the user collects these commands with OR connection and assigns them to the dedicated inputs of the TRC94_ PhS module This Figure shows the collected signals E g Trip SinglePh Trip 3Ph etc only As an example the T
15. d they control the TRIP contacts applying two steps of the preparation and command generation phases This part of the program is not visible The description of the fast operating protection functions are listed in the configuration description of the devices The outputs of the TRC94_PhS trip logic block are assigned to the channels of the TRIP hardware module This assignment which can be modified also by the user is made not here but in the TRIP assignment menu of the EuroCAP configuration software Consequently the Figure is complete related to the outputs the user needs additional graphic programming only if e g the operation is to be visualized also by signal relays If the configuration includes protection functions blocks the trip command of which does not need fast contact operation then these commands must be additionally directed to the TRIP relay outputs To do this the user collects these commands with OR connection and connects them to the dedicated inputs of the TRC94 PhS module This Figure shows the collected signals E g Trip SinglePh Trip 3Ph etc only As an example the Trip_3Ph signal collects the commands of all not fast operating protection functions which can generate three phase trip command The detailed description of the inputs and operation of the TRC94 PhS trip logic function block can be found in another document Version 1 1 11 20 Application of high speed TRIP contact
16. dule on the output Tr3Ph If the automatic reclosing is to be disabled after a fault caused by a manual close command then the CmdOn output of the CB3Pol module must be connected to the ManCl input of the REC 79 HV automatic reclosing function If there is no synchro check function configured in the device connect the SynRel input of the REC79 HV automatic reclosing function to logic TRUE state The evaluation of the status signals indicating the open state of the circuit breker poles in OR gate is needed for the operation of the automatic reclosing function According to the scheme of Figure 5 3 the open state is indicated by at least one pole open state of the circuit breaker For simplicity this Figure shows a realization without checking the FALSE signal of the closed states Figure 5 3 supposes that the CB ready signal is not connected to the device accordingly the steady TRUE state signal is connected to the CBRdy input of the REC79 HV automatic reclosing function If the real signal is available the signal must be connected similarly The close command of the REC 79 HV automatic reclosing function is connected via OR gate to the dedicated close contact Version 1 1 15 20 Application of high speed TRIP contacts 5 4 Closing the circuit breaker with synchro check Z1 10C50 50N and SOTF have fix connection to TRC94 Fast EQU Trip outputs of TRC94 have fix connection to Trip conta
17. e logic connections edited in the graphic editor is performed outside the sampling cycle consequently depending on the actual load of the processor a random time delay of additional 2 4 ms can be measured The contacts of the TRIP hardware modules are operated by several sources parallel e The high speed factory configured fast protection functions e The defined Fast L1 signals e The graphically edited logic connections programmed in the factory and editable also by the user 4 Control of signal relay outputs If there is no special requirement to generate the signal with high speed i e a time delay of 2 4 ms can be tolerated between the intent to generate the signal and the closing of the output contact then it is sufficient to apply normal signal relay contacts To perform this programming the graphic editor of the EuroCap configuration tool is to be applied To perform the programming the Master access level is needed Version 1 1 10 20 Application of high speed TRIP contacts 5 Examples 5 1 Application of the TRIP logic 71 10C050 50N and SOTF have fix connection to TRC94 Fast EQU Trip outputs of TRC94 have fix connection to Trip contacts Trip assign Figure 5 1 Example A simple configuration to trip the circuit breaker Figure 5 1 shows a simple configuration to trip the circuit breaker In this Figure it is supposed that the fast protection functions operate according to the factory configuration an
18. is is usually the fourth contact of the TRIP hardware module The programming of the interlocking function must be performed by the user Figure 5 4 includes the application of the REC79 HV automatic reclosing function The start signal Trip StartAR can be programmed by the user The automatic reclosing function is started only if the preceding trip command was performed by the circuit breaker i e for example that the function is not disabled The AND gate on this Figure performs this checking The REC 79 HV automatic reclosing function needs the status signal indicating three phase open state of the circuit breaker connected to the 3PhTr input of the REC79_ HV function block This signal is generated by the TRC94_PhS module on the output Tr3Ph If the automatic reclosing is to be disabled after a fault caused by a manual close command then the CmdOn output of the CB3Pol module must be connected to the ManCl input of the REC 79 HV automatic reclosing function The evaluation of the status signals indicating the open state of the circuit breaker poles in OR gate is needed for the operation of the automatic reclosing function According to the scheme of Figure 5 4 the open state is indicated by at least one pole open state of the circuit breaker For simplicity this Figure shows a realization without checking the FALSE signal of the closed states Figure 5 4 supposes that the CB ready signal is
19. re two different types of relay output modules in the EuroProt devices e TRIP relay output module for high speed operation of the circuit breakers e Signal relay output module 1 2 Operating modes of the relay contacts For operation of the relay output modules there are four different modes e Application of TRIP relays for commands of fast protection functions e User application of the TRIP relays e Fast operation of any relay contacts TRIP relays or signal relays e Control of signal relay outputs The procedures of command processing are shown in This document describes the details using the TRIP relay contacts as an example The left side of the Figure shows the available sources of the trip commands e The function blocks configured in the device e The communication channels to the SCADA system e Commands generated using the front panel LCD of the device e Any other binary signals e g signals from the binary inputs of the device The right side of the Figure shows one of the TRIP relays symbolically The Figure provides a survey of the configured trip command processing methods In the middle of the Figure the locations indicated by User shows the possibilities for the user to modify the procedures All other parts are factory programmed Version 1 1 4 20 Application of high speed TRIP contacts Physical TRIP Protection contact of the A Enmen TRIP module l Trip contact Cmd OFF Communication
20. rip_3ph signal collects the commands of all not fast operating protection functions which can generate three phase trip command The detailed description of the inputs and operation of the TRC94_ PhS trip logic function block can be found in another document In this configuration also the CB3pol circuit breaker control block is applied This block is needed if e g the front panel LCD of the device can display an active control Version 1 1 16 20 Application of high speed TRIP contacts scheme For this purpose the signals Bln_L in the Figure are the status signals of the circuit breaker poles connected to the dedicated binary inputs of the device The signals Local Remote enable the local or remote control of the primary equipment In the standard factory configurations these signals are programmed in the factory but they can be modified also by the user According to Figure 5 4 the local command issued via LCD of the device or the remote command received from the remote SCADA system is processed by the 1 RC94_ PhS module Output CmdOff This control is programmed in the factory to BOut_xx variables The user can perform any modification in the graphic programming The close command is connected directly to a dedicated BOut_xx variable This directs usually the fourth contact of the TRIP hardware module In Figure 5 4 the close command is connected directly to a dedicated output Th
21. s 5 2 Application of circuit breaker control block Z1 10C50 50N and SOTF have fix connection to TRC94 Fast EQU Trip outputs of TRC94 have fix connection to Trip contacts Trip assign Figure 5 2 Example Application of circuit breaker control block Figure 5 2 shows an example for the application of the circuit breaker control block CB3Pol In this Figure it is supposed that the fast protection functions operate according to the factory configuration and they control the TRIP contacts applying two steps of the preparation and command generation phases This part of the program is not visible The description of the fast operating protection functions are listed in the configuration description of the devices The outputs of the TRC94_PhS trip logic block are assigned to the channels of the TRIP hardware module This assignment which can be modified also by the user is made not here but in the TRIP assignment menu of the EuroCAP configuration software Consequently the Figure is complete related to the outputs the user needs additional graphic programming only if e g the operation is to be visualized also by signal relays If the configuration includes protection functions blocks the trip command of which does not need fast contact operation then these commands must be additionally connected to the TRIP relay outputs To do this the user collects these commands with OR connection and assigns them to the dedicated
22. the circuit breaker For simplicity this Figure shows a realization without checking the FALSE signal of the closed states Figure 5 5 supposes that the CB ready signal is not connected to the device accordingly the steady TRUE state signal is connected to the CBRdy input of the REC79 HV automatic reclosing function If the real signal is available the signal must be connected similarly The close command of the REC79 HV automatic reclosing function is connected via OR gate to the dedicated close contact In this application the close command to the circuit breaker is generated by synchro check The enabling signal for the close command is generated by the SYN25 software module This module is described in details in a separate document The Version 1 1 19 20 Application of high speed TRIP contacts needed input signals indicating the state of the voltage transformers VTSBIk and BUS1VTSBIk must be programmed graphically The output signal RelA of the SYN25 software module enables the closing operation of the REC 79 HV automatic reclosing function via its SynRel input For manual close commands the output signal RelM of the SYN25 software module enables the closing operation of the CB3pol via its SynOK input An extension to the example in Figure 5 4 is the following If there is no continuous synchron state because the frequency at one side of the circuit breaker is different
23. the circuit breaker with synchro check and synchro switch Figure 5 5 shows an example for the application of SYN25 cynchro check function block with synchro switch extension In this Figure it is Supposed that the fast protection functions operate according to the factory configuration and they control the TRIP contacts applying two steps of the preparation and command generation phases This part of the program is not visible in Master level The description of the fast operating protection functions are listed in the configuration description of the devices The outputs of the TRC94_PhS trip logic block are assigned to the output channels of the TRIP hardware module This assignment which can be modified also by the user is made not here but in the TRIP assignment menu of the EuroCAP configuration software Consequently the Figure is complete related to the outputs the user needs additional graphic programming only if e g the operation is to be visualized also by signal relays If the configuration includes protection functions blocks the trip command of which does not need fast contact operation then these commands must be additionally assigned to the TRIP relay outputs To do this the user collects these commands Version 1 1 18 20 Application of high speed TRIP contacts with OR connection and assigns them to the dedicated inputs of the TRC94 PhS module 7J 19 This Figure shows the collected signals E g
24. ther signals can be directed to this OR gate Using this method also other TRIP modules extended by the user can be applied to operate the TRIP coil of the circuit breaker 2 5 Fast operation of the relays If the aim is to operate the contacts by a signal in each sampling cycle 1 ms then the Fast L1 contact option is to be applied This option is provided by the EuroCAP configuration software in the menu Hardware configuration IO signals Binary outputs Relay contacts Fast_L1 contacts DistProt E Hardware configuration Rack designer Connector allocation 10 signals H Analog inputs Calculated channels 410 H Analog outputs l Binary inputs l Binary outputs Relay contacts 4 Fast Li contacts 4000 LED def 5 Control inputs Direck ETH Communication CPL l Software configuration TEL 61850 System E E E E Figure 2 3 Configuring Fast LI contacts This menu offers the assignment of the appropriate binary signals to the relay contacts As Figure 2 4 shows the signal can be of several types Version 1 1 8 20 Application of high speed TRIP contacts F fai Object properties Type Defined by RoootFunctionBlock Mame FastLl Contacts 1 Title Syn Crd Contact c 0004 Contacts BOut EOS Close On Item name ua J213 Graphed input Status 0001 Filtered Binary Input 0213 Graphed input Status 1111 NonFiltered Binary Input 3002 Volatile user status 3003 Mon vol
25. to that of the other side then the voltage vector of one side rotates continuously as compared to the other one In this case a synchronous switching is attempted to restore the normal operation of the network The manual synchron switching mode is started by the signal on the StSwM input of the SYN25 module To do this the the StartSW output of the Cb3Pol module must be connected here For automatic synchron switching mode the ClReq output of the Rec79HV module must be connected to the SwStA input of the SYN25 software module IMPORTANT NOTE the close command is generated for both manual and automatic switching at the output SynSW of the SYN25 software module It is advised not to connect this output using the slow graphic programming but the contact assigned to the close command BOutClose must be handled as fast operating L1 contact The SynSW signal must be programmed to this contact This assignment is performed using the EuroCap configuration tool in the menu Hardware configuration Binary outputs Relay contacts Fast_L1 contacts Version 1 1 20 20
26. ut_xx variables The user can perform any modification in the graphic programming The close command is connected directly to a dedicated BOut_xx variable This directs usually the fourth contact of the TRIP hardware module The programming of the interlocking function must be performed by the user Version 1 1 13 20 Application of high speed TRIP contacts 5 3 Automatic reclosing and circuit breaker control Z1 10C50 50N and SOTF have fix connection to TRC94 Fast EQU Trip outputs of TRC94 have fix connection to Trip contacts Trip assign Figure 5 3 Example Automatic reclosing and circuit breaker control Figure 5 3 shows an example for the application of the automatic reclosing control block In this Figure it is supposed that the fast protection functions operate according to the factory configuration and they control the TRIP contacts applying two steps of the preparation and command generation phases This part of the program is not visible in Master level The description of the fast operating protection functions are listed in the configuration description of the devices The outputs of the TRC94_PhS trip logic block are assigned to the output channels of the TRIP hardware module This assignment which can be modified also by the user is made not here but in the TRIP assignment menu of the EuroCAP configuration software Consequently the Figure is complete related to the outputs the user needs

Application of high-speed TRIP contacts

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