David wrote:
I am not certain I want to disable the OVERLOAD circuit to make this adjustment without knowing what may be wrong for fear of doing more harm than good. But on the other hand, this may very well be exactly what is causing the tripping in the first place.
What you need to do is determine whether there really is excessive current trying to flow from the generator, or whether the fault monitor is broken or out of adjustment. So, I recommend focusing narrowly on whether the generator is or is not supplying current and, if it is, where that current is flowing. This can usually be done by measuring voltages in situ and calculating currents through existing circuit resistances (sometimes you only get a fraction of a second after power-on if the protection circuit shuts the generator down rather than just limiting the current). A clamp-on DC current probe can be handy, but is often not necessary.
As a side note, this technique (finding out where DC current is flowing, and how much of it) is a very powerful diagnostic tool. Focusing on it can save untold hours of aimless poking around hoping to stumble on a clue. "Hmmmm -- I know DC current is flowing into this node, where could it go? The only possible paths to a more negative potential are through R115 or C13. Measuring the voltage on both sides of R115, and confirming its resistance, I know that the current flowing through it is nowhere near the current flowing into the node. Therefore, ...."
Best regards, Charles _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
