Commissioning P44x/EN
CM/E33
MiCOM P441/P442 & P444
Page 51/54
8.3.2.5
Replacement of the relay board in the power supply module
Remove and replace the relay board in the power supply module as described in 8.3.2.4
above.
The relay board is the one with the board with holes cut in it to allow the transformer and two
large electrolytic capacitors to protrude through. To help identify that the correct board has
been removed, figure 29 illustrates the layout of the relay board.
P3012XXa
SERIAL No.
ZN0002
4
3
2
1
PL2
D
FIGURE 29 - TYPICAL RELAY BOARD
Ensure the setting of the link (located above IDC connector) on the replacement relay board
is the same as the one being replaced before replacing the module in the relay case.
Once the relay has been reassembled after repair, it should be recommissioned in
accordance with the instructions in sections 1 to 7 inclusive of this chapter.
8.3.2.6
Replacement of the extra relay board (P442 1 P444 only)
The P442 distance relay has two additional boards to the P441 and the P444 four additional
boards to the P441. Some of these boards provides extra output relays and optically-
isolated inputs.
To remove it, gently pull the faulty PCB forward and out of the case.
If the relay board is being replaced, ensure the setting of the link (located above IDC
connector) on the replacement relay board is the same as the one being replaced. To help
identify that the correct board has been removed, figure 29 and figure 30 illustrate the layout
of the relay and Opto boards respectively.
The replacement PCB should be carefully slotted into the appropriate slot, ensuring that it is
pushed fully back on to the rear terminal blocks.
Refit the front panel using the reverse procedure to that given in section 8.3.2. After refitting
and closing the access covers on case sizes 60TE, press at the location of the hinge-
assistance T-pieces so that they click back into the front panel moulding.
Summary of Contents for MiCOM P441
Page 1: ...MiCOM P441 P442 P444 Numerical Distance Protection VC2 x Technical Guide P44x EN T E44...
Page 2: ......
Page 4: ...P44x EN T E44 Technical Guide Page 2 2 MiCOM P441 P442 P444 BLANK PAGE...
Page 5: ...Pxxxx EN SS C11 SAFETY SECTION...
Page 6: ......
Page 8: ...Pxxxx EN SS C11 Page 2 10 Safety Section BLANK PAGE...
Page 17: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 UPDATE DOCUMENTATION VERSION C2 X...
Page 18: ......
Page 22: ...P44x EN AD E44 Update Documentation Page 4 82 MiCOM P441 P442 P444 BLANK PAGE...
Page 23: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 Page 5 82 P44X EN IT E33 INTRODUCTION...
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Page 96: ...P44x EN AD E44 Update Documentation Page 78 82 MiCOM P441 P442 P444 BLANK PAGE...
Page 98: ......
Page 100: ...P44x EN AD E44 Update Documentation Page 82 82 MiCOM P441 P442 P444 BLANK PAGE...
Page 101: ...Introduction P44x EN IT E33 MiCOM P441 P442 P444 INTRODUCTION...
Page 102: ......
Page 104: ...P44x EN IT E33 Introduction Page 2 24 MiCOM P441 P442 P444 BLANK PAGE...
Page 127: ...Relay Description P44x EN HW E33 MiCOM P441 P442 P444 RELAY DESCRIPTION...
Page 128: ......
Page 132: ...P44x EN HW E33 Relay Description Page 4 44 MiCOM P441 P442 P444 BLANK PAGE...
Page 152: ...P44x EN HW E33 Relay Description Page 24 44 MiCOM P441 P442 P444 Example isolated AC fault...
Page 153: ...Relay Description P44x EN HW E33 MiCOM P441 P442 P444 Page 25 44...
Page 173: ...Application Notes P44x EN AP E33 MiCOM P441 P442 P444 APPLICATION NOTES...
Page 174: ......
Page 180: ...P44x EN AP E33 Application Notes Page 6 220 MiCOM P441 P442 P444 BLANK PAGE...
Page 357: ...Application Notes P44x EN AP E33 MiCOM P441 P442 P444 Page 183 220...
Page 364: ...P44x EN AP E33 Application Notes Page 190 220 MiCOM P441 P442 P444 BLANK PAGE...
Page 394: ...P44x EN AP E33 Application Notes Page 220 220 MiCOM P441 P442 P444 BLANK PAGE...
Page 395: ...Technical Data P44x EN TD E33 MiCOM P441 P442 P444 TECHNICAL DATA...
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Page 400: ...P44x EN TD E33 Technical Data Page 4 30 MiCOM P441 P442 P444 BLANK PAGE...
Page 427: ...Installation P44x EN IN E33 MiCOM P441 P442 P444 INSTALLATION...
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Page 430: ...P44x EN IN E33 Installation Page 2 10 MiCOM P441 P442 P444 BLANK PAGE...
Page 438: ...P44x EN IN E33 Installation Page 10 10 MiCOM P441 P442 P444 BLANK PAGE...
Page 439: ...Commissioning P44x EN CM E33 MiCOM P441 P442 P444 COMMISSIONING...
Page 440: ......
Page 494: ...P44x EN CM E33 Commissioning Page 54 54 MiCOM P441 P442 P444 BLANK PAGE...
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Page 498: ...P44x EN RS E33 Commissioning Test Record Sheets Page 2 10 MiCOM P441 P442 P444 BLANK PAGE...
Page 507: ...Connection Diagrams P44x EN CO E33 MiCOM P441 P442 P444 CONNECTION DIAGRAMS...
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Page 510: ...P44x EN CO E33 Connection Diagrams Page 2 12 MiCOM P441 P442 P444 BLANK PAGE...
Page 520: ...P44x EN CO E33 Connection Diagrams Page 12 12 MiCOM P441 P442 P444 BLANK PAGE...
Page 521: ...Courrier Data Base P44x EN GC E44 MiCOM P441 P442 P444 CONFIGURATION MAPPING...
Page 610: ...Courier Data Base P44x EN GC E44 MiCOM P441 P442 P444 DEFAULT PROGRAMMABLE SCHEME LOGIC PSL...
Page 615: ...Menu Content Tables P44x EN HI E44 MiCOM P441 P442 P444 MENU CONTENT TABLES...
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Page 634: ...P44x EN VC E44 Hardware Software Version Page 8 8 MiCOM P441 P442 P444 BLANK PAGE...
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