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Sounds good Ozz, but at this fairgrounds, one phase dropped and the 50-amp power to our rigs dropped to a measured 56 volts. You may be right in theory, but this was a practical experience. Everyone on this power feed dropped their power to 56 volts. So you see, one leg was hot but greatly reduced. That's why my Surge Guard removed all power. The other rigs on this line were in trouble, but fortunately they were all home and were quickly able to disconnect power to their rigs until power was restored to normal. What would have happened had they not been home? It's hard telling. But I do know about six people who are going to get Surge Guards.
Yes, I have an automatic switchover to the inverter when the shore power is removed.
Orv
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