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If you have Fluke meter with Fluke Connect (has FC in the model number like 393FC), you can use the Fluke Connect app to data log for a period of time. How much time varies depending on the tool and test.</div>
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Thanks,</div>
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Will</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> on behalf of Jerry Shafer via RE-wrenches <re-wrenches@lists.re-wrenches.org><br>
<b>Sent:</b> Friday, January 3, 2025 3:01 PM<br>
<b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br>
<b>Cc:</b> Jerry Shafer <jerrysgarage01@gmail.com><br>
<b>Subject:</b> [EXTERNAL] Re: [RE-wrenches] Generator Overvoltage Troubleshoot</font>
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<div dir="auto">I work with gen set and inverter integration all the time, unless you have an inverter beginning to fail, it has to be the gen set, when l run load banks it for 2, 4 hr. or even longer and the voltage may only be checked at intervals and not
continues. Use a fluke or other high quality meter set to min max and test all the integration, now the inverter may be pushing back spikes. You should also be able to tune in voltage at the gen set regulator, it can set volts and freq.
<div dir="auto">Fun times</div>
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<div dir="ltr" class="x_gmail_attr">On Fri, Jan 3, 2025, 6:17 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="x_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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