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1. what is the power factor and whatis his losses
2. what is the working procedure of 51RNB AND 87 relay
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Answer Posted / gunasekaran
low P.F following effect will accure.
1.KVA=KW/PF for low PF KVA ratng so equipment size will
incress.
2.PF is low more current so transmission loss will more.and
conductor size also incress.
3. poor voltage regulation
4.M.d incress.
51-idmt o.c and earth fault
87-diffrential relay it is operating B/W primary and sec
current diffrence.
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