ECN Forum Forums General Topics of the Trade General Discussion Area Wild oscillations of line voltage Aug 14th.

This sounds not unlike a situation we had happen over here, in the late 80's.
It's called "hunting", where a series of Alternators will speed up and slow down and cause a really huge variation in Output Voltage, this is caused by a gross loss in loading and can seriously damage the windings in an Alternator, due to back EMF currents/voltages, which for a 11kV alternator, can be HUGE!!.
I'd invite the comments of CaOperator on this one!.

[This message has been edited by Trumpy (edited 08-16-2003).]