Re: [RE-wrenches] Parts List For AC Couple Disconnect

2019-11-02 Thread William Miller
Mark: I think the task is to measure battery voltage and, if it gets too high, generate a signal to disconnect the AC coupled feed to the AC bus. Therefore the sample is DC, not AC. Simple matter of voltage dividing into an acceptable range. I submit that there are probably a lot of ways to

Re: [RE-wrenches] Parts List For AC Couple Disconnect

2019-11-02 Thread Mark Frye
Glenn, OK, while I would prefer to not get into compiling code onto an ARM, my main question would be, how do you get the voltage value into the Arduino? Rectify the AC voltage and then voltage divide down to the chip input pin? Mark On 11/2/2019 10:14 AM, Glenn Burt wrote: Sounds like a jo

Re: [RE-wrenches] What type of solar racking?

2019-11-02 Thread Jerry Shafer
Do you have any pics of the racking system Jerry On Sat, Nov 2, 2019, 11:02 AM Rebecca Lundberg wrote: > I went to see an existing solar installation (in the Colorado Front Range) > yesterday that was installed ~2008. It's still working well but homeowner > is considering either adding another a

[RE-wrenches] What type of solar racking?

2019-11-02 Thread Rebecca Lundberg
I went to see an existing solar installation (in the Colorado Front Range) yesterday that was installed ~2008. It's still working well but homeowner is considering either adding another array or swapping out the 170w modules for something newer to increase his output. It's a very nicely done instal

[RE-wrenches] Parts List : Reprise

2019-11-02 Thread Mark Frye
Folks, I guess what I am asking is does anyone know of a cheaper way of implementing than: Digikey, Relay Monitor Voltage, 646-1145-ND, $117 each, Qty. 1 Digikey, On-Delay Timer, RTE-P1AF20, $49 each, Qty. 1 Digikey, Relay Socket, 27E891, $7 each, Qty. 2 Total = ~ $200 Thanks, Mark Frye

Re: [RE-wrenches] Parts List For AC Couple Disconnect

2019-11-02 Thread Glenn Burt
Sounds like a job for an Arduino...-GlennSent from my 'smart'phone, so please excuse typos and spelling errors.-- Original message--From: Mark FryeDate: Sat, Nov 2, 2019 1:05 PMTo: re-wrenches@lists.re-wrenches.org;Cc: Subject:[RE-wrenches] Parts List For AC Couple DisconnectFolks, Can

[RE-wrenches] Parts List For AC Couple Disconnect

2019-11-02 Thread Mark Frye
Folks, Can anyone share a parts list for setting up a AC couple disconnect? I want to couple a non-frequency response grid-tied inverter to a battery based stand-alone inverter. I have only 8 amps output from the GT inverters, so can use 10A relay contacts. I want a device to monitor AC vo

[RE-wrenches] Fwd: Re: Maximum Devices on Combox

2019-11-02 Thread Dave Angelini Offgrid Solar
Jason, I am doing this from memory. It could be it is 3 devices. Ask Sharon or Schneider please. Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ [1] e-mail offgridso...@sti.net [2] text 209 813 0060 On Fri, 1 Nov 2019 19:51:09 -0400, Jason Szumla