ABB Relion 650 Series Commissioning Manual page 63

Busbar protection version 1.1 iec

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1MRK 505 264-UEN A

Restoring

Maintenance is very important to improve the availability of the protection system by

detecting failures before the protection is required to operate. There is however little point in

testing healthy equipment and then putting it back into service with an open terminal, with a

removed fuse or open miniature circuit breaker with an open connection, wrong setting, and

so on.

Thus a list should be prepared of all items disturbed during test so that all can be put back into

service quickly and without overlooking something. It should be put back into service item by

item and signed by the responsible engineer.

Busbar protection REB650

Commissioning manual

Commissioning and maintenance of the fault clearing system

Section 8

SEMOD56528-36 v2

Table of Contents

Relion reb650