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I don't think that's right.

If you look at the P-P of an AC waveform, you're seeing the potential of one line as referenced to itself at a different point in time.

But a capacitors only experiences the voltage across the two terminals at the same instant.

For 660VAC RMS signal (with no DC bias) the potential to the reference at the waveform peaks is only 1.4 x 660.

Now, how that translates exactly to the AC ratings of caps, I am not sure, but I don't think an AC rated cap is meant to handle 2.8 x V, certainly not DC.

Charlie G


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  • I don't think that's right. - Charlie G 11:13:09 11/01/01 (0)


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