GE GL317D Instruction Manual page 172

Sf6 circuit- breaker
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Maintenance operations, continued
Guide
08- 2016
Maintenance
Maintenance plan
The table below is a guide of the operations to be carried out at each
maintenance stage:
(M1)- MAINTENANCE VISITS (1 or 2 times a year)
(M2)- INSPECTION (every 5 years)
(M4)- OVERHAUL (OPERATING TIME: 20 years)
(M4)- OVERHAUL (MECHANICAL OPERATIONS: 3 000
cycles)
(M4)- OVERHAUL (ELECTRICAL WEAR: see
☆ Compulsory for monitoring device and/or Point on Wave relays
Conditional maintenance for Point on Wave relays:
Caution: When using with a shunt, if the number of operations per day is
greater than or equal to 1, carry out the operation every two years:
Update the time taken for breaking chamber and auxiliary contact
operations (time shift), then reset the adaptive control.
GE Information
"Electrical wear limits")
Monitoring devices and/or Point on Wave relays:
Check for the presence of alarms on the front
panel. Carry out a download from the equipment
and save the archive & config. files to a local hard
drive for analysis.
Monitoring devices and/or Point on Wave relays:
Check for the presence of alarms on the front
panel. Carry out a download from the equipment
and save the archive & config. files to a local hard
drive for analysis.
Point on Wave relays: update the time taken for
breaking chamber and auxiliary contact operations
(time shift), then reset the adaptive control.
L51- 004EN/07
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