Larry.
Hera's an idea. Put a 1:1 isolation transformer of suitable power rating
between the inverter and load. The iron core will act as a energy
storage element allowing for a cleaner ac waveform during start.
Frank BZP
On 1/13/2023 12:54 PM, Starlight via RE-wrenches wrote:
Any new AC equipment connected and running during test? Scope the
waveform during equipment start to see if the distortion is severe. I
have seen a 300W load make a mess of a Magnum AC waveform.
Larry Crutcher
Starlight Solar Power Systems
On Jan 13, 2023, at 11:48 AM, Mac Lewis <maclew...@gmail.com> wrote:
Good question Larry,
Rock solid 52V on a lithium battery system. Doesn't appear to be a
battery problem at all.
On Fri, Jan 13, 2023, 11:41 AM Starlight <la...@starlightsolar.com> wrote:
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@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
*
*
_______________________________________________
_______________________________________________
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. 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
_______________________________________________
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. 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
