[RE-wrenches] Outback Grid Problems

[R Ray Walters]

Ventilated, but small enclosure. Definitely a possibility to consider. What fault warnings were you getting?

Thanks,

R. Walters
ray at solarray.com
Solar Engineer




On Mar 30, 2010, at 5:58 PM, Randy Brooks wrote:

> Ray,
> 
> Is the inverter in a ventilated space?  We had a similar problem with older OutBacks in an unventilated shed.  OutBack sent us upgraded inverters and we vented the shed and have had no problems since.
> 
> Good luck,
> 
> Randy Brooks
> Brooks Solar, Inc.
> Solar Power for People
> 140 Columbia View
> Chelan, WA  98816
> 509-682-9646
> Randy at BrooksSolar.com
> www.BrooksSolar.com
> 
> On Mar 30, 2010, at 11:54 AM, R Ray Walters wrote:
> 
>> 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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