tom opines:

-Something just occurred to me. I wonder if the field is collapsing on him.
Twenty volts is almost like a left over residual charge - it may not be the
rectifier at all.-

Bilge-That's why I want to know if his undervoltage is with "stripped
boards"...I've seen bad grounds knock the shee-yot out of the line voltage,
though. And in 10 years of experience, I've usually found the problems to be
"downstream" from the gennie.

Had an emergency gennie once showed a dead ground on one phase with a totally
stripped circuit board....hmmmm, turns out it was one of the flourescent lights
that provided illumination to the emergency switchboard. That was a kick in the
head...I was almost fixin' to go after the ground lamp socket itself.

If his generator isn't receiving proper excitation voltage to the field, that
would do it also...no DC current, no electromagnet, no electromagnet, no lines
of force for the rotor to break...no, or little output voltage.

Regards;


Mutiny is a Management Tool
Select Your Tattoo while Sober

"Among the many misdeeds of the British rule in India, history will
look upon the Act depriving a whole nation of arms, as the blackest."
-- Mahatma Gandhi