RL=9KWHeater load in three phase with
neutral total 3nos. heater of 3KW each
connected between Phase and neutral.
W(VA) = VL X IL X cosø,
VL= Vrms, IL =Amp, W=Watts,
3000 =230 vrms X IL X 1
Cos ø =1=PF=Resistive load,

Heater will be 3KW and current will be
13 Amps. In each phase with neutral |
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