Wrenches:
I have a customer that has a problem with a new generator. He has two
VFX3648 inverters in Outback stacking. He acquired a new generator, a
Kohler 12RES, a reputable make and model. Below is a description of the
problem:
The 12RES seems to be operating OK except for one problem. At the end of a
charging cycle, when the gen automatically shuts down and load goes back to
the inverters, all lights, TVs, etc., flash, one TV shuts off, and a GFI
trips. This has happened every time. It did not happen with the 15RES or
the smaller back-up gen (which was disconnected manually). With the 15RES
the same GFI would occasionally trip while the unit was charging and
handling house load, but never at the auto shutdown point. I replaced the
GFI, but it still trips. There are three GFIs in the house, but only
one--always the same--trips.
I suggested he adjust the AC2/Gen transfer delay to a lower number. He
reduced it to minimum and this did not resolve the problem. I also had him
verify that the AC source is selected as generator, which it is.
Do you have any suggestions?
Thanks in advance,
William Miller
Please note new e-mail address and domain:
William Miller
Miller Solar
Voice :805-438-5600
email: [email protected]
http://millersolar.com
License No. C-10-773985
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