what type of relays used in transformers?
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Answer Posted / vishal
BUCKHOLTZ RELAYS(OIL COOLED T/F)---->INCIPIENT INTERNAL
FAULTS
PERCENTAGE DIFF PROTECTION----->FOR SHORT CIRCUITS(FOR
>1MVA T/F)
OVER CURRENT RELAY------------->SHORT CKT(FOR LOW RATING)
HAMONIC RESTRINT DIFF RELAY----->FOR PROT AGAINST MAL OPN
OF T/F
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Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.
