[RE-wrenches] Outback Grid Problems

[Steve Higgins]

Ray, 

If you go to the Status FX Sell menu what is the disconnect reason when
it does this? 

Also have you set the Grid Tie Authority from IEEE to User, when
customers are all the way out at the end of the line sometimes the grid
isn't as pretty and UL1741 and 1547 require so if the Grid Tie Authority
is IEEE the inverter can disconnect prematurely.  Changing this to User
will open up the disconnect windows a bit so you don't disconnect
prematurely. 

Steve Higgins. 
Sr Application Engineer. 
Sub-Saharan Africa Business Dev Mgr. 
Outback Power Systems. 
19009 62nd Ave Ne 
Arlington Wa 98223
360-618-4313

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of R Ray
Walters
Sent: Tuesday, March 30, 2010 11:54 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Outback Grid Problems

I considered that there could be something happening due to the grid, as
this guy is way out on the end of the line going into his own utility
transformer.
But then the inverter should show a fault light, and it should try back
again, once the grid voltage drops.
Instead it initiates a full charge cycle and will not connect till the
next day.

R. Walters
ray at solarray.com
Solar Engineer




On Mar 30, 2010, at 10:57 AM, Brian Teitelbaum wrote:

> HI Ray,
> 
> Have you checked the grid voltage to see if there is variation during
the day which would be enough to kick the inverters out of connection?
> 
> Brian Teitelbaum
> AEE Solar
> 
> 
> 
> -----Original Message-----
> From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of R Ray
Walters
> Sent: Tuesday, March 30, 2010 9:43 AM
> To: RE-wrenches
> Subject: [RE-wrenches] Outback Grid Problems
> 
> We currently have a Grid Tie system with a pair of Outback inverters
that are regularly dropping out of sell mode, and letting the arrays
spend all day charging the battery bank.
> It seems to do this several times a week, and the customer is losing
substantial production, and gassing the batteries too much.
> It will reset itself the next day, or the customer resets it by
turning off the inverters manually.
> The system is 24 v, with an old array of 1800 watts running through 2
FM60s, and a new array of 2800 watts running through another pair of
FM60s.
> The battery bank is HUP about 4100 Ah @ 24 v (3 strings of 1375 Ah
each) Big battery, I know, but the customer is an electrical engineer,
who wanted maximum storage capacity.
> 
> Outback tech support has not resolved the issue, and this has turned
into several service calls, and customer frustration.
> We've tried running the controllers through the HUB, and also
independently, and that doesn't make a difference.
> I have numerous Outback GT installs dating back to 2003, and have
never had a problem like this.
> Any help or advice would as always be greatly appreciated.
> 
> Thank you in advance fellow Wrenches,
> 
> R. Walters
> ray at solarray.com
> Solar Engineer
> 
> 
> 
> 
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