The normal generator test uses resistive loads which are easy for the voltage regulator.
I’ve had success with problem generators by adding watts of resistive loads, space heaters. Worth a test. Because this generator is so large, might take 5k or more of heaters.
Jay Thanks for that input, right now it's in Generator. I was advised to try BACKUP, but the generator was running funny when I put it on that mode. I will try that SUPPORT mode and see what happens. What AC input mode are you using? I'd recommend trying various modes to see if it will go away. I tend to use the support mode with the most success.
Hi all, I need some help with a generator overvoltage troubleshoot. I'm working on an outback offgrid system that consists of 2 x Radian GS8048a, 1 x MATE3S controller, 1 x FM 80 charge controller, 1 x 55kw single phase propane AC cummins generator, about 4kw of solar *not sufficient enough to keep up with the load, and 24 x 4v Rolls batteries series/paralleled to make 48v. The generator was rebuilt and the batteries replaced about a year ago and since then, the generator has been faulting due to overvoltage. I had help and first found that the MATE needed calibrating so that was done, but the generator still was faulting. I found changing the AC Input Charging from 30a to 20a seemed to work. I put a power monitor on the generator output and found that, with the AC Input Charging set at 30a, noticed that there was a voltage spike up to 300+V at about a 70a draw. The generator company put a load bank on and verified the generator may not be at fault and the problem is after the generator. Has anyone encountered a problem like this and have suggestions? I've attached a PDF with a timeline of what I've done for troubleshooting so far.
-- Jim with Gowdy Electric Cambria, Ca 93428 business 805 927 2630 cell 805 975 5279
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-- Jim with Gowdy Electric Cambria, Ca 93428 business 805 927 2630 cell 805 975 5279
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