Inspection And Maintenance - ABB OVR-15 Instruction, Operation And Maintenance Manual

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I
NSPECTION AND MAINTENANCE
The OVR-15, 27 & 38 will require minimal maintenance if handled properly. Frequency of operation and
local environmental conditions should be considered when determining maintenance schedule.
To a large extent, the safety and successful functioning of any apparatus or system connected with the
recloser depends on the proper installation, commissioning, programming and configuration of the unit.
To provide long, reliable service, the recloser should be inspected at regular intervals. Operating
experience, environmental conditions, the number of operations, the magnitude of current interrupted
and any unusual service conditions will guide you in establishing a maintenance schedule.
The maintenance work can only be carried out by trained personnel who knows & respect all safety
regulations, furthermore, it is recommended that ABB service personnel should be called in, to check the
service performance and for repair work.
A
CTIVITIES BEFORE DOING ANY MAINTENANCE OF THE RECLOSER
1. Follow all activities mentioned in previous clause
2. Disconnect the power supply from both sides of the HV unit
3. Ensure that the isolators on both sides of the feeder are open properly and securely locked out
4. Ensure that the main circuit is properly earthed
Ensure that all the safety norms are followed as per your country and company's policy
5.
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Figure-18 : Manual Opening
Instruction Manual for HV Unit of OVR-15, 27 & 38
HV
UNIT