DEW attack in Canneto di Caronia?

[l0st]

Thanks

Yes, Rube Goldberg to the EXtreme!

I have my Monster Surge Box + Voltage Conditioner on the other side of the garage wall in the Man Cave. The Monster has a live voltage readout. Post Dominion Energy the on ground Transformer box removal and positional reinstall using old transformer but with new underground electrical conduit from their other transformer I am now seeing a constant daytime voltage of 123 to 124 volts.  They cut a huge tree down that "compromised" their box last August 2023. It was on a 35 degree angle. In the South their quick fix on anything such as water pressure and voltage is to crank it up and to hell with the homeowner. 

What has changed is the 100's of millisecond power outages are now fewer versus the 100's we used to get pre Transformer positioning that we used to have. I wonder if that 30 + something year old transformer is bad? I think that one underground Transformer is for three homes

I wonder what the reading is at night? I will take a look and do some research. I owned that box since 2008 when I bought a Pioneer Elite Plasma TV. I have never seen the voltage this high until the last 4 months.

Most states have a public utilities commission that regulates the power quality. They should have specifications published for acceptable power fluctuations. National Electric Code specifies 3% drop. Service voltage should be +5.8% to -8.3% for system operating 600V and below per ANSI and my experience is that most PUCs are somewhere in that ballpark. That would give a usable range at the feed to the panel of 100V to 127V, assuming you're on a standard single-phase 240V system. Some places out in the country or commercial use a 3-phase Wye and the voltages are lower, nominal is something like 115V and 208V. In most states, one can make a complaint to this board if the voltages are out of spec and the power company is legally required to address it. If the transformer is any good, all they typically have to do is adjust the taps on the transformer. It could get hairy there... in some states the power company owns the transformers and in others, the users of the transformer "own" it and would be responsible for paying to replace it if its bad(probably $20K).

Voltage is likely to go up at night. Most of the electronic equipment I've dealt with, particularly if made in the last 25 years, has a switch mode power supply and will run okay on anything from about 85VAC to 135VAC. If its built for international sale, it probably even works up to about 250 VAC or so. Older stuff with linear power supplies (quite possibly your stereo amplifiers) and transformers will run hot if the voltage is too high and eventually burn up or have reduced lifespan.