Have they already installed soft starts on these motors? Chris
On 1/13/2023 1:41 PM, Starlight via RE-wrenches 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
*
"Yo solo sé que no sé nada." -Sócrates
*
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Christopher Warfel
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
401-466-8978
<http://entech-engineering.com>
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