[RE-wrenches] Outback Grid Problems

toddcory at finestplanet.com toddcory at finestplanet.com
Tue Mar 30 11:49:05 PDT 2010


Ray, what is the AC output voltage at the inverters while they are selling? If it goes too high (too small of a delivery wire) you will have to raise the sell voltage by specifying "USER" in the mate.

Todd

On Tuesday, March 30, 2010 9:42am, "R Ray Walters" <ray at solarray.com> said:

> 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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