voltage spikes

[Peter Cardwell]

what would cause voltage to fluctuate between 125 and 128 volts and spike up to near 130 volts from time to time?

 

[Dennis Alwon]

Not unusual to have some spikes. Could be a bad transformer.

 

[Hv&Lv]

could be a loose/bad neutral connection. Check to see if it does it at the service entrance (main breaker). If it does, ask the POCO to check it out. you should not have 130V.

 

[ptonsparky]

What why and where are you measuring? Could be several reasons.

 

[bob]

Is this residential, commercial or industrial?