[RE-wrenches] Portable Solar Trailer w/ intermittent Ground Fault

[EcoSolar - Eric Andrews]

It sounds like you have a single GVFX feeding a load center w/ Multi wire
Branch circuits.  You will need an auto transformer on the OB power center
to feed both L1 and L2.
 
You will also need to do the ground switching and neutral isolation that
Steve mentioned.
 
Fyi, OutBack makes a mobile inverter that does the neutral isolation/grd
switching, but it's not a Grid tie inverter.
 
Eric R. Andrews
NABCEP Certified PV Installer
 
Eco Solar, Inc.
www.ecosolarnow.com
 
PO Box 5194
Klamath Falls, OR 97601
541-281-8252 cell
541-273-3200 office
 <mailto:eric at ecosolarnow.com> mailto:eric at ecosolarnow.com
 
Saving the World...  One Solar Panel at a Time!
 
 
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Wayne Irwin
Sent: Tuesday, June 01, 2010 9:30 AM
To: Wrenches
Subject: [RE-wrenches] Portable Solar Trailer w/ intermittent Ground Fault
 
Hello Wrenches,

We have a 2KW portable unit with one Outback GVFX3524. Intermittently, we
have a problem feeding GFI breakers. 
Its the strangest thing, sometimes it trips GFI's and other times it
doesn't. Aside from the possibility that some of the GFI's aren't wired
properly we haven't been able to figure it out. We have it plugged into a
GFI at the shop (which is wired properly) and there is no problem.

I thought there was a previous string on this issue but could not find it in
the archives.
What do you recommend for grounding portable units and what recommendations
do you have from personal experience?

Thanks!

Wayne Irwin
Director of Engineering
Pure Energy Solar International Inc. 
State Licensed Solar Contractor
License # CVC56695 
Wayne at PureEnergySolar.com <mailto:PureEnergySolar at hotmail.com>  
http://pureenergysolar.com <http://pureenergysolar.net/>  
352 377-6527 Office
352 336-3299 Fax 

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