DYohn
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Posts: 18,489
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Post by DYohn on Oct 19, 2020 11:45:35 GMT -5
If you have a transfer switch then I'm sure they did. You said it used a "3-prong 220V feed cable to the manual switch box" which is not the same thing at all. My transfer switch IS manual. Yes, so was mine when I lived in California. But the generator was hard wired into it and also had a separate dedicated ground rod. I am pretty sure the oscillations you experienced were not ground related, by the way, likely more related to poor regulation, but the ground issue was brought up and should, like the rest of your system, be inspected.
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