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  • Re: Kohler 20RES acting strange lately

    BB.BB.
    Sorry to read about your generator problems. Automatic gensets have lots of safety circuits that can cause the genset to shutdown (temperatures, oil, genset output voltage/frequency, etc.). Is this y…
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  • Re: input voltage drop

    BB.BB.
    Some panels have not been lasting as long as expected due to rear backsheet failures from UV/Temperature/etc. issues: https://www.nist.gov/news-events/news/2020/03/nist-study-uncovers-potential-drive…
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  • Re: input voltage drop

    BB.BB.
    That is a problem... You have to "break" each panel out to measure its Voc/Isc numbers. As a start, I would, in the middle of the day, with a discharged battery bank (or put, for example, a…
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  • Re: input voltage drop

    BB.BB.
    It is the old question... Was a panel hit by a rock, or did it delaminate and the others are just a few years from following? Or was it "external" (failed MC4 crimp, etc.)? When panels were…
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  • Re: input voltage drop

    BB.BB.
    If you have series/parallel strings of panels... You have a couple of quick test options: * If you have a circuit breaker combiner box, you can turn off one string and then the other... Record the st…
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