Three Phase Power Using One Watt-meter Calculator

This Calctown Calculator calculates the three phase power using one watt-meter method.

P1(reading of watt-meter when switch is closed between 1 and 3)

P2(reading of watt-meter when switch is closed between 1 and 3)

P(three phase power)

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where

P1 = reading of watt-meter when switch is closed between 1 and 3

P2 = reading of watt-meter when switch is closed between 1 and 2

V = phase voltage

I = phase current

φ = power factor angle