What is PF? Formula for calculating PF in HT side?
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Answer Posted / nagesh.patwari
It is ratio of True Real Power to Apparent power.
Cos phi = KW/KVA = R/Z = True Real Active Power / Apparent power
KW = sq root of 3 x V x i x Cos Phi
hence cos phi = KW / ( sq root of 3 x V x I)
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