Answer / rangnath

For AC Circuit,
KW = (V*I*PF)/ 1000
And For DC Circuit,
KW = (V*I)/ 1000

Where V = Voltage, I = Current, and PF = Power Factor

Answer / pankaj kumar gupta

kw=cos(phai)*KVA

Answer / pillay

there is no one formula only.
there are some formulas that you must know,,
you must know how to use the correct one when you need it.

for DC power it is always just voltage x current = watts

for AC single phase it is always volt x current x pf = watts

for AC 3 phase it is root 3 x volt x current x pf = watts

the watts than you change to KW or MW if necessary.
this are all for real calculations. when you practice with it often than you will be able to give an estimate bcos the pf varies according to situation.

Answer / pandi

KW=VIcos(phi)/1000

I=kw*1000/(vcos(phi)

Answer / kumavat nareshkumar .c.

kw=v*i*cos(phi)/1000 in 1-phase ac
kw=1.73*v*i*cos(phi)/1000 in 3-phase ac
kw=v*i/1000 in dc

Answer / kumavat nareshkumar .c.

kw=v*i*cos(phi)*1000 in ac
kw=v*i*1000 in dc
where v=voltage,i=current,cos(phi)=powerfactor

Answer / arockia doss

Power(KW)*1000 = 1.732*V*I*Cos(pi)

I = KW*1000 /(1.732*V*Cos(pi))

Answer / dinesh (techie.dinesh@gmail.co

first, KVA*PF=KW

WE know that, power = VI
so KW=VI

KVA*PF=VI

so, I= (KVA*PF)/ V

Answer / sanjeet swarnakar

please tell me ur email ID

Answer / sud

WE CANNOT CONVERT AMPERS INTO kw we can only convert amps
into kiloamps or watts into kilowatts, h.p

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