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Anonymous Poster #1

Power Frequency Withstand Voltage

06/02/2011 12:42 AM

what is power frequency withstand voltage and what is its importance in LV systems?
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Mahanteshy
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#1

Re: power frequency withstand voltage

06/02/2011 1:17 AM

ITS NORMALLY THE RMS VALUE OF70kV PEAK 120kV PEAK
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PWSlack
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#2
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Re: power frequency withstand voltage

06/02/2011 3:52 AM

.....and nowhere near as NOISY as that post.

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Vinu_Answers
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#3

Re: Power Frequency Withstand Voltage

06/03/2011 7:23 AM

Power frequency withstand voltage is the root mean square (r.m.s.) value of sinusoidal power frequency (50 or 60Hz) voltage that the equipment can withstand during tests made under under dry or wet conditions and for a specified time.

Power frequency tests are done to test insulation levels of electrical cables/switch gears/transformers/motors etc. during manufacturing.

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