[RE-wrenches]

[Holt Kelly]

Hello all,
Andrew McCalla and I did a "re-do" on a system recently. Whisper 3000 
w/EZ Wire, 950w of PV. We added a PVGFP to the system as the array is 
roof mounted. A problem occured on final check of system. The GFP kept 
tripping when two 40amp PV breakers were switched on. Below is Andrew's 
communication with Southwest Windpower. Anyone encountered this with the 
EZ wire? (I did not include schematic attachment with this post- contact 
me off-list if you would like to view it)

To Southwest Windpower:
I have done many systems with this particular GFP (ground fault 
protection)mechanism and have never run into any problems.  The EZ Wire 
threw us a curve because the GFP usually accepts the input directly from 
the array disconnect, before continuing on to the charge controller.  
Since these two are so intertwined in the EZ Wire, we accomplished this, 
as you can see, by simply putting in an additional breaker between the 
array and the GFP.

The GFP is does not trip unless both breakers (the two PV 40 Amp 
breakers)are on.  If we bypass the GFP, the EZ Wire will receive
current.  Therefore, the GFP is sensing a ground fault.

Could this be due to the fact that there is continuity between the 
bonded negative terminals on the EZ Wire and the EZ Wire cabinet itself? 
 As I indicated to you over the phone, I could find no documentation 
regarding the subject of grounding in the EZ Wire manual.



"We do not inherit the earth from our parents. We borrow it from our 
children."
Chief Seattle

Holt E. Kelly
Holtek Fireplace & Solar Products
Waco, TX.
hkelly6 at msn.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9
Or send an email To: RE-wrenches-unsubscribe at topica.com
This email was sent to: michael.welch at homepower.com

T O P I C A -- Register now to manage your mail!
http://www.topica.com/partner/tag02/register
==^================================================================