Areva MiCOM P341, Operation Manual

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Operation Guide P341/EN O/B11
Problem Analysis CHAPTER 4
MiCOM P341 Page 3/8
1. INTRODUCTION
Before carrying out any work on the equipment, the user should be
familiar with the contents of the safety and technical data sections and
the ratings on the equipment’s rating label
The purpose of this chapter of the service manual is to allow an error condition on
the relay to be identified so that appropriate corrective action can be taken.
Should the relay have developed a fault, it should be possible in most cases to
identify which relay module requires attention. Chapter 3, ‘Commissioning and
Maintenance’, advises on the recommended method of repair where faulty modules
need replacing. It is not possible to perform an on-site repair to a faulted module.
In cases where a faulty relay/module is being returned to the manufacturer or one of
their approved service centres, completed copy of the Repair Form located at the end
of this manual should be included.
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 3
Relay powers up - but indicates error and halts during
power-up sequence
Section 4
Relay Powers up but Out of Service LED is illuminated Section 5
Relay Re-boots during normal operation Section 6
Error during normal operation Section 6
Misoperation of the relay during testing Section 7
Table 1: Problem identification