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Old 10-19-2012, 06:28 PM   #11
Bill
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Hmmm. I don't mean to flog the issue, Bob, but I can't think why it would be difficult to reset. Put the GFCI behind a curtain and bring the feedline out. On your side of the curtain, you can connect the feedline to either a standard utility outlet or the outlet on an inverter generator. Because it is behind the curtain, the GFCI can't see which connection you make. And because it doesn't have any connection to the ground (green) wire, it can't be affected by what is going on there.

And with regard to
Quote:
... the common side of AC from an invertor can have 65VAC on it.
It is important to remember that voltages at one place are always measured with respect to some other point. It may be ground, or it may not, but this is not just a semantic distinction. So I have to ask, 65VAC with respect to what?

A good analogy is altitude. If I ask "What is the altitude of Mt Everest above sea level?", then the answer is 29,029 feet. And if I ask "What is the altitude of Annapurna above sea level?", then the answer is 26,545 feet. And if I ask "What is the altitude of Mt Everest above Annapurna?", then the answer is 2484 feet. In each case, you have to say "with respect to what". With altitude, it may be commonly understood to be "sea level", though that's not always the case. In electricity, there is no such assumption.

Again, not meaning to beat a dead deed ...

Bill
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Old 10-19-2012, 07:17 PM   #12
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Quote:
Originally Posted by Bill View Post
If you would like to send a private copy to me (my email address is in my profile), I would be glad to take a look at it. I am a professional EE, so I would find it interesting, and might be able to prepare some comments in advance of your permission to release.
Bill - I sent you the article. Also, just to be clear, I haven't requested permission to reprint the article -- Bob is the one that mentioned he was doing that.

We'd appreciate your insight.

Dave
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Old 10-19-2012, 08:59 PM   #13
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I apologize to both Bob and Dave. Somehow I mixed the two of you up in my mind, since you both made good comments, and I lost track of who said what. Not a good thing for me to do, and again, I apologize. I have gone back and I think (I hope!) straightened out my mangled mess.

I look forward to reading the article. And Dave, I would welcome having your Dad's reactions to the article, and doing a cross-check of my thoughts!

Bill
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