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Electrical Power Equation

29-04-2010 02:49PM

#1

shakeydude

Registered Users, Registered Users 2 Posts: 207 ✭✭

Join Date: February 2006

Posts: 143

Could someone help me with an equation. I have V=220 and A= 16. How do I calculate my power requirement for an AC and DC source?

Shakeydude

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Comments

#2 29-04-2010 04:16PM

FarmerGreen

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Power= Volts times Amps
220V x 16A =3520 Watts or 3.5KW DC

On an AC circuit loads are expressed as KVA with a PF (power factor)
As long as the load is a resistance, on AC it would be the same ie 3.5KVA

Bear in mind things like motors and incandescent lamps take a surge of power when they are switched on.

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