Application Notes
P74x/EN AP/Na7
MiCOM P741, P742, P743
(AP) 6-51
AP
The above example shows a double busbar with a bus coupler. It is split into two zones.
There are n feeders connected to the busbar. The bus coupler circuit breaker can have
either a single CT (solution 1) on one side or CTs on both sides (solution 2).
This configuration requires 1 central unit and n + 1 peripheral units for solution 1 or n + 2
peripheral units for solution 2. (The additional peripheral units being for the bus coupler
CTs). The type of peripheral unit used for each bay will depend on the i/o requirements of
the bay in question.
P3786ENa
FIGURE 33: TRADITIONAL DOUBLE BUSBAR APPLICATION
WITH BUS COUPLER AND BUS SECTION
The above example shows a double busbar with both a bus section and a bus coupler. It is
split into four zones. There are n feeders connected to the busbar. The bus coupler and bus
section circuit breakers can have either a single CT (solution 1 and 2) on one side or CTs on
both sides (solution 1a or 2a). This configuration requires 1 central unit and n plus the
following number of peripheral units. The total number of peripheral units required allows for
a peripheral unit for the bus section isolator on the upper bar.
Solution
Solution A
1 CT on BC
& 1 CT on BS
Solution B
2 CT on BC
& 2 CT on BS
Solution C
1 CT on BC
& 2 CT on BS
Solution D
2 CT on BC
& 1 CT on BS
Solution 1
Solution 1a
Solution 2
Solution 2a
Number of
peripheral units
required
n + 2
n + 4
n + 3
n + 3
If a second bus coupler is added i.e. one bus coupler either side of the bus section
Using solution 1
for the 2
nd
coupler
Summary of Contents for P741
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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 ...
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