[RE-wrenches] Gen set problems
Jeff Wongstrom
info at thirstylakesolar.com
Tue Jun 15 06:37:12 PDT 2010
Hello Steve,
In my case, I tightened the voltage window to 110 lower, 125 upper
and the transfer delay to 30. This made no difference. I did not
confirm SETUP/FX/INPUT ...ac transfer control set to GEN.
On Jun 15, 2010, at 7:15 AM, Steve Higgins wrote:
> William,
>
>
>
>
>
> Check to make sure what Input you have selected… go to SETUP/FX/
> INPUT… Verify that you have the Ac Transfer control set to Gen.
>
>
>
> Make sure that you have adjusted the transfer delay cycles in the
> right screen... ADV/FX/GEN under Transfer delay cycles… I would
> set this to 0.
>
>
>
> As Mick said.. Check the Lower limit on the AC Voltage… ADV/FX/
> GEN… AC2 Gen Lower Limit I would adjust this up to 110-112?
>
>
>
> What does he have the cool down timer set to?
>
>
>
> I would suggest 5-10 minutes Look under… ADV/MATE/AGS/SETUP… I
> would set this to at least 5-10 minutes just to let the genset cool
> off before shutting off.
>
>
>
> Steve Higgins.
>
> Sr Application Engineering Mgr
>
> Sub-Saharan Africa Business Dev Mgr.
>
> Outback Power Systems.
>
> 19009 62nd Ave Ne
>
> Arlington Wa 98223
>
> 360-618-4313
>
>
>
>
>
> From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-
> bounces at lists.re-wrenches.org] On Behalf Of William Miller
> Sent: Monday, June 14, 2010 10:32 PM
> To: RE-wrenches
> Subject: [RE-wrenches] Gen set problems
>
>
>
> 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: william at millersolar.com
> http://millersolar.com
> License No. C-10-773985
>
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