[RE-wrenches] Gen set problems

[Steve Higgins]

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
<http://millersolar.com/> License No. C-10-773985


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