How to calculate kW on split phase panel

[mwdavis3]

Hi all. Quick question, when calculating the kW load on a split phase (120/240V) panel. Do you use 120V or 240V in the calculation for V_(V)? P_(kW) = PF ? I_(A)? V_(V) / 1000

So if I measure 15A on one leg and 20A on the other leg feeding a small 120/240V, 100A panelboard, whats the total kW load on the panelboard? Assume 100% pf.

Thanks.

 

[gar]

150611-0851 EDT

Quite simply it is 15*120 + 20*120 = 35*120 = 4200.

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