If a device draws 960w at 120V, it would draw 8 amps (true power)
But if it has a power factor of .65
Formula is V*I*PF
120*8*.65 = 624 W
My answer when converted to amps should be drawing 12.3A How can I show the math to get these amps ?
I don't know your level of mathematics is so please forgive me if I'm telling you something you already know.
The
equation is:
Power = V*I*PF...............(1)
or, same thing the other way round:
V*I*PF = Power...............(2)
One side of the equation equals the other. Like two equal weights on a balance.
Do whatever you like to one side of the balance and do the same thing to the other and you still have balance.
From (2) divide the left hand side by V and PF so these cancel leaving just I
On the right hand side also divide by V and PF you then get Power divided (V*PF)
You thus get:
I = Power/(V*PF)
Which gives you the 12.3A