[RE-wrenches] Generac QT series

Jarmo.Venalainen at schneider-electric.com Jarmo.Venalainen at schneider-electric.com
Mon Dec 15 09:25:15 PST 2014


Hi:

The Generac QT02224GNAX ships as a three-phase 120/208 VAC.  I believe the 
Magnum is a 120/240 VAC.

JARMO
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Jarmo Venalainen  |   Schneider Electric   |  Solar Business  |   CANADA | 
  Training & Development Specialist - Senior 
Phone: +604-422-2528  |   Fax: +604-420-1591  |   Mobile: +604-505-0291 
Email: jarmo.venalainen at schneider-electric.com  |   Site: www.SEsolar.com 
|   Address: 3700 Gilmore Way, Burnaby, BC V5G4M1 


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From:
Mac Lewis <maclewis1 at gmail.com>
To:
RE-wrenches <re-wrenches at lists.re-wrenches.org>, 
Date:
12/15/2014 05:52 AM
Subject:
[RE-wrenches] Generac QT series
Sent by:
"RE-wrenches" <re-wrenches-bounces at lists.re-wrenches.org>



Hello wrenches,

We have a newly installed system that has a 22 kW Generac Quiet Source 
QT02224GNAX with a Magnum MS4448-PAE.  When we start the generator, the 
Magnum's internal transformer temperature climbs to overtemp (240F) within 
a 2 minutes.  The batteries are being floated at the time, and haven't 
seen more than 5A coming out of the generator.  We swapped the Magnum out, 
and we have the exact same issue.  We then got a job-site gas generator 
6500W and ran it.  No problem whatsoever.  The problem appears to be with 
the Generac, or with the interaction between the Generac & the Magnum.  I 
didn't have a scope on site but the fluke multimeter doesn't detect 
anything wrong with the voltage or frequency coming from the Generac.

Has anyone had issues with the Generac QT?  Anyone paired one with a 
Magnum PAE before?  I want to get my scope up there and look for triplen 
harmonics, but I'm not sure how to filter these out.  Any references on 
how to effectively do that is appreciated.

Thanks in advance

-- 



Mac Lewis

"Yo solo sé que no sé nada." -Sócrates

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