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Oil Surge Relay In A Transformer


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i have 2000 kva 33kv/ 415 v transformer. it is a on load tap changer. above the OLTC there is a oil surge relay connected. the VCB for H.T. side does not have a interlocking for this realy to trip or give a alam for any malfunctiong in the OLTC. can i use it with the BUCHOLZ relay interlocking. please suggest
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