Low Voltage

[Oakman]

I have a question for those who know more about electric current than me. Thursday we arrived at an almost empty COE campground on Rend Lake and I hooked up our 50amp Surge Guard protector. All was well with the electric. Friday morning I noticed the red light flashing on the surge protector and it was reporting low voltage on Line 2. By Friday night with the campground full both lines had normal voltage. Anyone know what conditions would cause the low voltage issue with an empty campground that resolved itself by that evening with a full campground?

[KyDan]

Can't even guess. Since it's OK with a full CG I say keep an eye on it and
enjoy your weekend!! With the heat we're having, low voltage anywhere
would not surprise me!

[bakken]

Probably just a "brownout" in the area, where the voltage in the whole system drops as demand outstrips supply for a short while. This can happen just before they bring an extra power plant on line to meet increasing demand.
Without the Surge Guard, you probably wouldn't have noticed it.

[Herk7769]

Originally Posted by bakken

Probably just a "brownout" in the area, where the voltage in the whole system drops as demand outstrips supply for a short while. This can happen just before they bring an extra power plant on line to meet increasing demand.
Without the Surge Guard, you probably wouldn't have noticed it.

Sounds right to me as well. The campground could also have had a step down line transformer issue that was repaired by the electric company.

Keep monitoring your voltage. OBTW, having an autotransformer will keep your AC humming when others on your circuit are trying to live with no air conditioning.

[Oakman]

Thanks for the replies. I was clueless...as usual.