Originally posted by Dspark:
>[b]6-15 cycles
That's barely the blink of an eye. Nothing that you detected sounds like a power quality problem to me.
I know its a short time but when it happens the current on one phase drops from ~124 amps to ~95 amps and on the other two phases it increases to ~167 amps. I only had the analyzer connected for two weeks so I can't say for sure how often these things happen. Wouldn't that combined with the negative sequence currents flowing from the voltage and current imbalance cause excessive heating?
Was the motor actually rewound several times?
yes, I'll have to look at the records to see how many times.
What are they using for a spare while this one is out of service? How many pumps are there in all?[/B]
One deep well pump at this location.
