multiple grid-tie inverter problem [RE-wrenches]

Mark Frye markf at berkeleysolar.com
Mon Jun 9 16:49:57 PDT 2008


Have you talked with Fronius tech support?

 
Mark Frye
Berkeley Solar Electric Systems
271 Vistamont Dr
Grass Valley CA 95945
(530) 401-8024
www.berkeleysolar.com 

-----Original Message-----
From: Jeff Yago [mailto:jryago at netscape.com] 
Sent: Monday, June 09, 2008 3:57 PM
To: RE-wrenches at topica.com
Subject: RE: multiple grid-tie inverter problem [RE-wrenches]


We have installed many systems, but a recent new grid-tie having multiple
inverters is giving us major headaches.  Two identical side-by-side systems
on same roof, each array supplies its own Fronius inverter separately.  Each
AC output feeds its own circuit breaker in new sub-panel serving only these
inverters, which feeds back to main panel and meter base.  

One inverter never connects to grid, and error messages appear like there is
a problem with grid.  However, other inverter has no problem and is on exact
same breaker panels and wire runs.  Have tried to shut down "good" system
and start problem inverter first, but same problem.  Any way to widen or
adjust inverter settings to make less sensitive or to better match?  All
Fronius inverter has is an error message display, but no program setpoints
that I can access.

I have seen problems in past when AC wire run is too long and the voltage
drop causes inverter to not connect due to low voltage, but if that was case
here, why would other inverters work just fine which are on same AC wiring?

Thanks,

Jeff Yago


- - - -
Hosted by Home Power magazine

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

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

List rules & how to change your email address: www.mrsharkey.com/wrenches/etiquette.php

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

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at re-wrenches.org

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------





More information about the RE-wrenches mailing list