Re: [RE-wrenches] Radian Question

[Jay via RE-wrenches]

Is the radian connected to grid sell?   If so then I’d say yes the higher grid voltage is preventing connection.  Jay On Oct 31, 2023, at 9:35 AM, Drake Chamberlin via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:  Jay, It was a problem that surfaced before. Outback tech support was unable to figure it out. Then, the problem went away. Recently it showed up again. For the last couple of days it has been connecting normally. The voltage has been 250 VAC or lower. I know that most direct grid tie inverters can go to 264 V. I wondered if the Radian might be limiting voltage to protect loads. Just a theory based on the reading of 251 and higher when the inverter would not connect. Thanks, Drake Drake Chamberlin Athens Electric LLC Ohio Electrical Contractor’s License 44810 NABCEP Certified PV Installation Professional ---   On 2023-10-30 20:37, Jay via RE-wrenches wrote:   Drake I forgot to ask, but I'm thinking this is a new problem on an older system that was working normally?   Jay     On Oct 30, 2023, at 11:15 AM, david quattro via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: I'm not familiar with Outback defaults but most inverters I've dealt with have a grid tolerance of 10% +/-  so 216 to 264VAC.     On Mon, Oct 30, 2023 at 6:57 AM Drake Chamberlin via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: Hi Jay, The inverter won't even connect to the grid. It stays in the state where it is sampling the grid, AC in light blinking. Is the default high voltage for the nominal 240 V 280? (IE 140 V X 2).   Thanks for your help.   Drake   Drake Chamberlin Athens Electric LLC Ohio Electrical Contractor's License 44810 NABCEP Certified PV Installation Professional ---     On 2023-10-29 15:45, Jay via RE-wrenches wrote:   Hi drake   The early mate 3 has a glitch which I think they changed in the 3s.    You e got to set the rebulk volts above what you want it to charge at.    IE if the battery volts don't get below the rebulk volts it won't charge.    So if your shallow cycling the batteries it's common it won't get below the rebulk volts. If you're deep cycling it usually will with default settings    The default high voltage window for ac input is default at 140v.    Hope this helps   Jay         On Oct 29, 2023, at 11:14 AM, Drake Chamberlin via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: My Radian GS 8048 intermittently will connect to the grid to charge batteries. The grid voltage seems to run high around here. Yesterday, it wouldn't connect. The grid voltage was at 251 V. Later it did connect. At that point the grid was at 246 V.   I am suspecting that the Radian has a voltage acceptance limit of 250 V. Is that true? Is it possible to open up the window?   If that isn't it, what could be the problem?   Thank you,   Drake   Drake Chamberlin Athens Electric LLC Ohio Electrical Contractor's License 44810 NABCEP Certified PV Installation Professional   --   _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. 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