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Oh, the current diodes are ashes. haha. So where am I taking these resistance readings? I assume across the various windings? Looking for continuity to ground?

Ok, I ordered a 'megger' insulation tester and should be able to spend some time on this in a few days. I'm going to research exactly how to do the test and what readings I'm looking for, but any tips or pointers would be greatly appreciated!

Thanks for the info! To clarify - the exciter is the same as the rotor/rotating assembly? I'll have to do some research but I' assuming if I remove the diodes again, I can take resistance reading in place of the 6 diodes and look for a dead short?

The mecc alte rep just sent this 700+ page manual. I'm hoping there's some troubleshooting flowcharts and/or various specs that I can start pouring over. I see on page 45 that it appears I did install the diodes in the correct polarity. Which makes sense because when I acquired the generator...

Mecc Alte would not give that up. They also would not give any of the specs on them, and when they arrived they showed up in a clear plastic baggie and have no markings on them aside from the band on one side. I spent a considerable amount of time trying to find diodes that did not cost $27 a...

That doesn't sound good. What's the remedy?

Unit: Applied Companies 23kw 3 phase genset / 120k btu ECU trailer Trailer tags: GETT Trailer Assembly (17v) 1vpw8 (1p) 01-p54234e001 Applied Companies 23kw generator, part # 52480, model # 20RFH33DWLP Generator identifiers: On the alternator / genhead: SWP southwest...