Overcurrent and feeder protection

Overcurrent and feeder protection

SIPROTEC Compact 7SJ80 and SIPROTEC Compact 7SJ81

The overcurrent and feeder protection relays can be used for line/feeder protection of high and medium-voltage networks with grounded, low-resistance grounded, isolated or a compensated neutral point. The relays have all the required functions to be applied as a backup relay to a transformer differential relay.

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