davedottcom
Senior Member
Got a call... lights dimming, stuff blowing up... yada yada yada
Sounds like an open neutral, I'll be right there.
Took voltage readings directly on the nice clean aluminium poco service conductors on the LINE side of meter without removing the meter.
(underground service by the way)
I took Voltage readings in every way possible with all kinds of different readings fluctuating just like any other open neutral I've seen... but the one I don't understand was a reading of 280 Volts across L1 - L2.
That only lasted a few minutes then it dipped down to 56 across the same 2 points.
Power Co says it's not their connections or transformer, the problem is in the customer's equipment!
I am 99% sure it's the transformer unless somehow, someway it's possible for a voltage of 280 Volts to be produced on the line side of the meter due to something on the customer's side.
Any comments or theories?
Thanks as always!
Sounds like an open neutral, I'll be right there.
Took voltage readings directly on the nice clean aluminium poco service conductors on the LINE side of meter without removing the meter.
(underground service by the way)
I took Voltage readings in every way possible with all kinds of different readings fluctuating just like any other open neutral I've seen... but the one I don't understand was a reading of 280 Volts across L1 - L2.
That only lasted a few minutes then it dipped down to 56 across the same 2 points.
Power Co says it's not their connections or transformer, the problem is in the customer's equipment!
I am 99% sure it's the transformer unless somehow, someway it's possible for a voltage of 280 Volts to be produced on the line side of the meter due to something on the customer's side.
Any comments or theories?
Thanks as always!