GE MiCOM P40 Agile Technical Manual page 471

Maintenance
MiCOM P40 Agile P442, P444
CONTENTS
1 MAINTENANCE
1.1 Maintenance Period
1.2 Maintenance Checks
1.2.1 Alarms
1.2.2 Opto-isolators
1.2.3 Output Relays
1.2.4 Measurement accuracy
1.3 Method of Repair
1.3.1 Replacing the Complete Relay
1.3.2 Replacing a PCB
1.4 Recalibration
1.5 Changing the battery
1.5.1 Instructions for Replacing The Battery
1.5.2 Post Modification Tests
1.5.3 Battery Disposal
P44x/EN MT/Hb6
(MT) 10-3
5
5
5
5
5
5
5
6
6
7
16
16
16
17
17