Thanks Joel. I would also add that the utility also ran a much larger feeder line from the transformer to my house, likely to cover all their bases.
Daryl > Ray, > > I think Daryl is on to something. I would suspect a line problem > (under-sized feeder, bad connections, failing transformer, trees rubbing > wire, someone else on the feeder with noisy or large intermittent loads, > etc.). Utility transformers can degrade for a long time before they fail. > In > similar cases I called in a trouble report but did not tell the utility > about RE system so they wouldn't blame the customer's equipment. Instead, > I > told the utility that my customer's computer or tv was acting like (high > or > low voltage or whatever) was on the line so I put my voltmeter on the line > and measured (low or high) voltage and would they please check out the > feeder circuit and transformer. Almost every time the field workers found > a > line problem, repaired it and the customer's problems cleared up. It's > worth > the call. > > Joel Davidson > > ----- Original Message ----- > From: <penobscotso...@midmaine.com> > To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> > Sent: Wednesday, March 31, 2010 12:32 PM > Subject: Re: [RE-wrenches] Outback Grid Problems > > >> Ray, Believe me when I say I have gone through all the exercises >> described >> so far by our esteemed colleagues. I think you will find the problem is >> with the customers transformer. I continue to make impressive amounts of >> kwh since the swap out last week. >> >> Daryl >> >> >> >> >>> Battery bank is in great shape, is brand new HUP set. >>> >>> Thanks, >>> >>> R. Walters >>> r...@solarray.com >>> Solar Engineer >>> >>> >>> >>> >>> On Mar 31, 2010, at 6:19 AM, t...@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 <r...@solarray.com> >>>> Date: Tue, 30 Mar 2010 10:42:58 >>>> To: RE-wrenches<re-wrenches@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 >>>> r...@solarray.com >>>> Solar Engineer >>>> >>>> > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
