# two phase power calculation

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• #10505
jatin333
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if there is three phase power system we calculate power kw= sqrt(3)*V*I*CosØ so what is formula for two phase system?

#12163
Spir Georges GHALI
Participant

jatin333 said:

if there is three phase power system we calculate power kw= sqrt(3)*V*I*CosØ so what is formula for two phase system?

Dear Mr. Jatin333

To calculate the power value accordingly to : Voltage, Current, and Power Fcator, we have the following formula :

– For 3 Phases plus or withour neutral :

P = sqrt(3) x U x I x Cos Ø

– For 2 Phases :

P = U x I x Cos Ø

– For 1 Phase + Neutral :

P = V x I X Cos Ø

where :

U : Voltage between 2 pahses in ” Volt “

I : Current line in ” Amp “

V : Voltage between phase & neutral in ” Volt “

Regards.

#12169
jatin333
Participant

thanx Mr.

Spir Georges GHALI

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