[RE-wrenches] Outback Grid Problems

[R Ray Walters]

Battery bank is in great shape, is brand new HUP set.

Thanks,

R. Walters
ray at solarray.com
Solar Engineer




On Mar 31, 2010, at 6:19 AM, tump at hughes.net wrote:

> Ask the customer to ck the cells for bubbling during the charging period to make sure the cells all are good OR Isolate the battery banks to make sure there isn't a dead cell the OBs are trying to charge. BB1 one day, BB2 the next & so on. 
> Sent via BlackBerry by AT&T
> 
> -----Original Message-----
> From: R Ray Walters <ray at solarray.com>
> Date: Tue, 30 Mar 2010 10:42:58 
> To: RE-wrenches<re-wrenches at lists.re-wrenches.org>
> 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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