P341/EN O/B11
Operation Guide
CHAPTER 3
Commissioning and
Page 30/80
Maintenance
MiCOM P341
PL1
R47
R60
C25
IC11
R48
R61
R50
C24
R56
IC13
IC14
R38
R39
R57
R59
R58
R65
C3
IC12
R66
R68
R14
R67
R34
R45
R55
R49
R53
R35
IC3
R46
R54
R36
R40
R41
R26
IC4
IC5
IC6
IC7
IC8
IC9
IC10
IC1
IC2
TX1
IC15
IC16
R21
R22
R23
R24
R25
R27
R28
R29
R31 R37
R51
R52
R70
R71
C1
C2
D7
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R15
R16
R17
R18
R19
R20
R30
R32
R33
R42
R43
R44
R69
C6
C7
C8
C9
C20
C21
C22
C23
C4
C5
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C26
ZN0007
C
R72
C29
C28
C27
L2
L1
D2
D6
D4
D5
D3
D1
XL1
RX1
SK1
T1
E1
E2
1
SERIAL No.
Figure 7:
Typical IRIG-B board
Before fitting the replacement PCB check that the number on the round label adjacent
to the front edge of the PCB matches the slot number into which it will be fitted. If the
slot number is missing or incorrect write the correct slot number on the label.
The replacement PCB should be carefully slotted into the appropriate slot, ensuring
that it is pushed fully back on to the rear terminal blocks and the securing screws are
re-fitted.
Reconnect all IRIG-B and/or IEC60870-5-103 connections at the rear of the relay.
Refit the front panel using the reverse procedure to that given in section 8.3.2. After
refitting and closing the access covers on size 60TE cases, press at the location of the
hinge-assistance T-pieces so that they click back into the front panel moulding.
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.
8.3.2.3
Replacement of the input module
The input module comprises of two or three boards fastened together. In the P341
relays the input module consists of a transformer board and a input board.
The module is secured in the case by two screws on its right-hand side, accessible
from the front of the relay, as shown in Figure 8. Remove these screws carefully as
they are not captive in the front plate of the module.
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Страница 145: ...Operation Guide P341 EN O B11 MiCOM P341 APPENDIX A Relay Menu Database...
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