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Please let me know when replacing electromechanical
Relays for protection of generators with sr489 multilin
Relay, then there is no need to use 86 master trip relay
Too. I am wondering this multilin relay has no contact to
Stop breaker reclosing as 86 does
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Answer Posted / k.prakashchandra
The electronic relays do not have heavy duty contacts and they are usually self reset. Tripping relay is required to take high trip currents and they are to be reset . Otherwise the contacts of e- relays will burn out and breaker may close without clearing fault . In addition , a back up EM relay may be required
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