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I’ve chimed in on this connection before I have an Onan 20 KW an analog unit - 25 years old and I had it completely rebuilt prior to moving to Idaho and then after a couple of years, the voltage got really unstable. I dealt with ASAP they got me a they got
me a replacement new not ORM voltage regulator that has been absolutely perfect
<div>Here is their phone number these guys were super super helpful.
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<div>(717) 274-9396</div>
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<div dir="ltr">Dana Orzel
<div>C: 208.721.7003
<div>E- dana@solarwork.com</div>
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<blockquote type="cite">On Jan 3, 2025, at 1:52 PM, Darryl Thayer via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br>
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<div dir="auto">Here is my two cents I had a similar over voltage. It was caused by the generator. It helped to put a load on the generator, I put on a 500 watt resistance load, it helped but in the end the generator was replaced. Good luck. </div>
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<div dir="ltr" class="gmail_attr">On Fri, Jan 3, 2025, 8:17 AM Jim Gowdy via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
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<div>Hi all,</div>
<div> 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.</div>
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<span class="gmail_signature_prefix">-- </span><br>
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<div dir="ltr">Jim with Gowdy Electric
<div>Cambria, Ca 93428</div>
<div>business 805 927 2630</div>
<div>cell 805 975 5279</div>
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