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09-21-2011, 06:48 PM   #16
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Here is the same picture, with values corrected:
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 09-21-2011, 08:45 PM #17 A "Handy Husband"     Join Date: Feb 2007 Location: South Carolina Low Country Posts: 7,505 Rewards Points: 4,226 In the above sine wave sketch, the positive and negative peaks should be approx.170 volts and the peak to peak approx. 340 volts. 120 and 240 are the RMS of the peak voltages. RMS can be thought of as the DC equivalent of the peak wave. RMS = .732 x peak voltage __________________ Location: Coastal South Carolina
09-21-2011, 09:14 PM   #18
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Quote:
 Originally Posted by rjniles In the above sine wave sketch, the positive and negative peaks should be approx.170 volts and the peak to peak approx. 340 volts. 120 and 240 are the RMS of the peak voltages. RMS can be thought of as the DC equivalent of the peak wave. RMS = .732 x peak voltage
Oh stop being so picky. A graph can be scaled to RMS and nobody said it was an O'scope display. I don't see anything showing it is 16.7ms between peaks.....

09-21-2011, 10:40 PM   #19
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Quote:
 Originally Posted by a7ecorsair Oh stop being so picky. A graph can be scaled to RMS and nobody said it was an O'scope display. I don't see anything showing it is 16.7ms between peaks.....
Well.....actually, it's 16.6666666666666666666667 ms...

And the RMS value is only if it is a true sine wave....toss any any harmonics and the RMS voltage/peak can be all over the place.....

Remember CVT's? Ever see the waveform that comes out of those things? Yuk......

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