how we calculate the 30 KW 3phase electric motor current on
noload

Answer Posted / vikram

P = 30 kw
V= 415
I = ?
PF =0.8
p= 1.732 VI PF

I = 30000/1.732*415*0.8

I= 52.17 Amp (Full load current)

No load current will be 30% of FL current

N.L Current = 30% * 52.17

NLC = 15.65 A (Without taking Efficiency of motor into account)

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