voltamp vs watts

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Discussion in 'General Electronics Chat' started by Erin G., Mar 27, 2005.

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Mar 27, 2005 #1

Erin G. Thread Starter Senior Member

Mar 3, 2005

167

1

In a resistive circuit, voltamps and watts are equal, because the power factor is 1 (100%). In an inductive circuit, since the current lags the voltage, voltamps is generally higher than watts. In other words, apparent power is higher than actual, usable power.

Is there an easy formula to convert voltamp ratings to amps in an inductive, non-transformer, circuit. Capacitve circuit?

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Mar 27, 2005 #2

Erin G. Thread Starter Senior Member

Mar 3, 2005

167

1

Oops. double posted <_<

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Mar 27, 2005 #3

David Bridgen Senior Member

Feb 10, 2005

278

0

Power factor = True power/Apparent power

= W/VA

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