Not much damage

[ptonsparky]

Customer called about a couple gfci recepts we had replaced a year ago not working. A bit unusual so the help checked voltage today 137 to neutral and 273 line to line. 1 phase. POCO changed transformer & life is good again. Other than ballasts on two florescent trouble lights, the GFCIs, and incandescent lamps every time he blinked, the dryer getting hot, he did not have any serious problems.

Are todays electronics a bit more.forgiving now that they are designed for world wide voltage supplies?

 

[Jraef]

It is becoming more common to see these "universal" switch mode power supplies where they accept anything from 24-270V AC or DC. The cost has come way down as the volume of use goes up, so for companies selling things all over the world there is a benefit to only having one design that often overcomes the higher component cost.

 

[Little Bill]

Customer called about a couple gfci recepts we had replaced a year ago not working. A bit unusual so the help checked voltage today 137 to neutral and 273 line to line. 1 phase. POCO changed transformer & life is good again. Other than ballasts on two florescent trouble lights, the GFCIs, and incandescent lamps every time he blinked, the dryer getting hot, he did not have any serious problems.

Are todays electronics a bit more.forgiving now that they are designed for world wide voltage supplies?

Had to read this a few times to get what you were saying. I thought you were saying he checked the voltage to the GFCIs. Was wondering how you were checking line to line on a GFCI receptacle unless it was a 240V one. I ain't never seen one of them.

 

[templdl]

These pizza ovens were quite robust for 2 years.

These pizza ovens were quite robust for 2 years.

Customer called about a couple gfci recepts we had replaced a year ago not working. A bit unusual so the help checked voltage today 137 to neutral and 273 line to line. 1 phase. POCO changed transformer & life is good again. Other than ballasts on two florescent trouble lights, the GFCIs, and incandescent lamps every time he blinked, the dryer getting hot, he did not have any serious problems.

Are todays electronics a bit more.forgiving now that they are designed for world wide voltage supplies?

One of the local restaurants has (2) 208v pizza ovens where the pizzas a run through with a convayer belt of sorts. My son and I were freinds of the owner and we had to take one of the ovens in for repair and recently had a cople of fan motors burn out. Just for grins my son measured the voltage at the receptable and it was 247v. That explained the failure issue but it surprised use that it didn't fail sooner. They also had electronic temperature control
Because the owner consider the pizza oven's a pizza oven and probably didn't considered the voltage and the recepticle was wired for 240 by the electrician, the electrician just assumed that's what the owner understood he would purchase. Of course these a used pizza oven and it had what he thought was the correct pug.
I suggested a buck transformer but I doubt the owner will spend the money as he appears to just deal with the failure when they occur.
I was surprised that they were that robust.

 

[ptonsparky]

Had to read this a few times to get what you were saying. I thought you were saying he checked the voltage to the GFCIs. Was wondering how you were checking line to line on a GFCI receptacle unless it was a 240V one. I ain't never seen one of them.

I know most things I put out are clear as mud, sometimes even for me to read. My hand writing is horrific with my artistic and musical talents lagging far behind. If it wasn't for my good looks I would have nothing going for me at all.

 

[kwired]

Couple months ago I was working on a customers piece of equipment in my shop. When doing some testing I noticed the voltage seemed pretty high, and after looking a little more discovered my service voltage was around 137/274. This supplies my house and the shop. Had no idea how long it had been that way. Called POCO and they had a problem with a voltage regulator, took little time to fix the problem. Never had any equipment failures that I am aware of related to that incident, and have no idea how long that incident lasted either.