[RE-wrenches] Low Frequency transformer off-grid inverter options

[Starlight]

Mac,

What was the lowest voltage measured at inverter battery terminals during the inrush measurement?

Larry Crutcher
Starlight Solar Power Systems



On Jan 13, 2023, at 11:33 AM, Mac Lewis via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:

Hello Wrenches,

I have a new client that has ran a pretty decent wood shop for about 10 years on a Magnum 4448.  He's got some large loads, planers, saws, compressors vacuums etc.  They are really nice, heavy duty pieces of equipment.  Amazingly, the Magnum has been able to start these loads for the most part for 10 years, but he has reported that it has gotten worse lately (could be a load issue), brown outs, dimming etc

He wants to upgrade the system, get remote monitoring etc.  I tried a test with a Sol-Ark 12, and it won't start these large motor loads.  I was a little surprised by that but I know they aren't as good as the low freq transformer based inverters at these surges.

I confirmed that its not just an overload from imbalance because the 240V loads will also overload it.  I got an inrush measurement of 48.5A Ac @240 (but it didn't start the load before Sol-Ark would shut off)  

What are my options?
Schneider XW Pro 6848
Outback Radian 8048 (Is this a low freq device?)
Sunny Islands are beasts but weird to work with and not user friendly

Any others I should consider?  He does have some significant 120 only loads so I don't think the Outback vfxr are a good choice.

Is it as simple as saying if the Magnum can start this load, the Radian should?

I appreciate your input!

--
Mac Lewis

"Yo solo sé que no sé nada." -Sócrates

_______________________________________________
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches at 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. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20230113/a25b855c/attachment.htm>