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GE P742

GE P742
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P74
x/EN TS/Na7
Troubleshooting
(TS) 12-
4
MiCOM P74
1, P742, P743
TS
2. INITIAL PROBLEM IDENTIFICATION
Consult the table below to find the description that best matches the problem experienced,
then consult the section referenced to perform a more detailed analysis of the problem.
Symptom Refer To
Relay fails to power up Section 4
Relay powers up - but indicates
error and halts during
power-up sequence
Section 5
Relay Powers up but Out of Service LED is illuminated Section 6
Error during normal operation Section 7
Mal-operation of the relay during testing Section 8
Table 1: Problem identification

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