# power factor

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### #1 rameshwari

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Posted 07 November 2003 - 12:13 PM

hi
can you please tell me the different methods of measuring power factor in an hf circuit.

### #2 marke

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Posted 07 November 2003 - 10:17 PM

Hello rameshwari
Welcome to the forum.
Can you please expand on what you mean by hf circuit?

Best regards,

### #3 rameshwari

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Posted 10 November 2003 - 06:27 AM

hi!
by hf circuit i meant high frequency circuit.
actually i am working on a high frequency induction heating system. i want to measure the power factor of the system. so i wanted some details about how to measure pf in case of hf circuit.
;q

### #4 marke

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Posted 13 November 2003 - 09:29 AM

Hello rameshwari

It depends on the frequency that you are operating at, but you could measure the power factor (angular displacement) with an oscilloscope) unless the frequency it too high.

Best regards,

### #5 jhun

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Posted 06 February 2004 - 02:29 AM

power factor is = kw/kva.
take the actual inline current. and compare to kw rating.
inline current mutiply by 1.73 if you load is three phase and multiply by the voltage, devided by 1000= your kva

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