Commissioning
P74x/EN CM/Na7
MiCOM P741, P742, P743
(CM) 10-13
CM
Out of service LED behaviour for P742xxxxxxxxx5J or for P743xxxxxxxxx5K:
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The Commission Test menu structure in the PU also allows for an 'Overhaul' mode
where secondary injection of the PU is permitted. In this mode the isolators must be
open for testing, but all information is passed back to the CU for inclusion in the zone
calculations. While in this mode the Peripheral Unit can be tested locally, secondary
injections tests, for example, can be carried out (the system is stable because during
the current injection there is a differential current in the CZ but not in the Zone). In this
case, since the system must have primary action (i.e open isolators), the ‘Out of
Service’ LED is ON.
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The Commission Test menu structure in a Peripheral Unit allows for a '50BF Disabled'
mode where the PU does not initiate the breaker fail protection, but can respond to
commands to trip from the CU (in the event of a busbar protection trip or CB failure
backtrip). In this case, since the busbar protection is not out of service, the ‘Out of
Service’ LED remains OFF in the CU.
4.2.3.2
Testing the Trip LED
The trip LED can be tested by initiating a manual circuit breaker trip from the relay. However,
the trip LED will operate during the setting checks performed later. Therefore, no further
testing of the trip LED is required at this stage. Please note that the CB control function does
not exist in the Central Unit (P741) as only the Peripheral Unit (P742/P743) may trip/close
the local circuit breakers.
4.2.3.3
Testing the user-programmable LEDs
To test the user-programmable LED’s set cell [COMMISSION TESTS, Test LED’s] to ‘Apply
Test’. Check that all the LED’s of the relay illuminate.
In the P741 and P743:
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The ‘Red LED Status’ cell is an eighteen bit binary string that indicates which of the
user-programmable LEDs on the relay are illuminated when accessing the relay from
a remote location, a ‘1’ indicating a particular Red LED is lit.
−
The ‘Green LED Status’ cell is an eighteen bit binary string that indicates which of the
user-programmable LEDs on the relay are illuminated when accessing the relay from
a remote location, a ‘1’ indicating a particular Green LED is lit.
−
If a ‘Red LED Status’ cell AND the same ‘Green LED Status’ cell are at ‘1’ the
particular LED is lit Orange
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If a ‘Red LED Status’ cell AND the same ‘Green LED Status’ cell are at ‘0’ the
particular LED is not lit.
In the P742:
−
The ‘LED Status’ cell is an eight bit binary string that indicates which of the
user-programmable LEDs on the relay are illuminated when accessing the relay from
a remote location, a ‘1’ indicating a particular LED is lit and a ‘0’ not lit.
Summary of Contents for P741
Page 2: ......
Page 4: ......
Page 6: ...P74x EN IT Na7 Introduction MiCOM P741 P742 P743 ...
Page 8: ...P74x EN IT Na7 Introduction IT 1 2 MiCOM P741 P742 P743 IT ...
Page 18: ...P74x EN TD Na7 Technical Data MiCOM P741 P742 P743 ...
Page 30: ...P74x EN TD Na7 Technical Data TD 2 14 MiCOM P741 P742 P743 TD ...
Page 32: ...P74x EN GS Na7 Getting Started MiCOM P741 P742 P743 ...
Page 70: ...P74x EN ST Na7 Getting Started MiCOM P741 P742 P743 ...
Page 72: ...P74x EN ST Na7 Settings ST 4 2 MiCOM P741 P742 P743 ST ...
Page 116: ...P74x EN OP Na7 Operation MiCOM P741 P742 P743 ...
Page 120: ...P74x EN OP Na7 Operation OP 5 4 MiCOM P741 P742 P743 OP ...
Page 136: ...P74x EN OP Na7 Operation OP 5 20 MiCOM P741 P742 P743 OP FIGURE 8 CB FAIL LOGIC ...
Page 166: ...P74x EN AP Na7 Application Notes MiCOM P741 P742 P743 ...
Page 234: ...P74x EN PL Na7 Programmable Logic MiCOM P741 P742 P743 ...
Page 290: ...P74x EN PL Na7 Programmable Logic PL 7 56 MiCOM P741 P742 P743 PL ...
Page 291: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 57 PL ...
Page 292: ...P74x EN PL Na7 Programmable Logic PL 7 58 MiCOM P741 P742 P743 PL ...
Page 294: ...P74x EN PL Na7 Programmable Logic PL 7 60 MiCOM P741 P742 P743 PL ...
Page 295: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 61 PL ...
Page 296: ...P74x EN PL Na7 Programmable Logic PL 7 62 MiCOM P741 P742 P743 PL ...
Page 298: ...P74x EN PL Na7 Programmable Logic PL 7 64 MiCOM P741 P742 P743 PL ...
Page 299: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 65 PL ...
Page 300: ...P74x EN PL Na7 Programmable Logic PL 7 66 MiCOM P741 P742 P743 PL ...
Page 302: ...P74x EN MR Na7 Measurements and Recording MiCOM P741 P742 P743 ...
Page 324: ...P74x EN FD Na7 Firmware Design MiCOM P741 P742 P743 ...
Page 344: ...P74x EN FD Na7 Firmware Design FD 9 20 MiCOM P741 P742 P743 FD FIGURE 10 P74x SYSTEM OVERVIEW ...
Page 351: ...Firmware Design P74x EN FD Na7 MiCOM P741 P742 P743 FD 9 27 FD ...
Page 353: ...P74x EN CM Na7 Commissioning MiCOM P741 P742 P743 ...
Page 429: ...P74x EN MT Na7 Maintenance MiCOM P741 P742 P743 ...
Page 431: ...P74x EN MT Ma7 Maintenance MT 11 2 MiCOM P741 P742 P743 MT ...
Page 451: ...P74x EN TS Na7 Troubleshooting MiCOM P741 P742 P743 ...
Page 453: ...P74x EN TS Na7 Troubleshooting TS 12 2 MiCOM P741 P742 P743 TS ...
Page 475: ...P74x EN SC Na7 SCADA Communications MiCOM P741 P742 P743 ...
Page 499: ...P74x EN SC Na7 SCADA Communications SC 13 24 MiCOM P741 P742 P743 SC ...
Page 501: ...P74x EN SG Na7 Symbols and Glossary MiCOM P741 P742 P743 ...
Page 511: ...P74x EN SG Na7 Symbols and Glossary SG 14 10 MiCOM P741 P742 P743 SG Logic Gates ...
Page 513: ...P74x EN IN Na7 Installation MiCOM P741 P742 P743 ...
Page 515: ...P74x EN IN Na7 Installation IN 15 2 MiCOM P741 P742 P743 IN ...
Page 528: ...Installation P74x EN IN Na7 MiCOM P741 P742 P743 IN 15 15 IN FIGURE 6 P742 40TE REAR VIEW ...
Page 533: ...P74x EN VH Na7 Firmware and Service Manual Version History MiCOM P741 P742 P743 ...
Page 542: ...APPENDIX A WIRING DIAGRAMS ...
Page 543: ...Appendix A Wiring Diagrams P74x P74x EN M Na7 ...
Page 559: ......