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

[Glenn Burt]

According to a seminar I just attended, the new Midnite Solar Rosie will...-GlennSent from my 'smart'phone, so please excuse typos and spelling errors.------ Original message------From: Dave Angelini Offgrid Solar via RE-wrenchesDate: Fri, Jan 13, 2023 3:55 PMTo: RE-wrenches;Cc: Dave Angelini Offgrid Solar;Subject:Re: [RE-wrenches] Low Frequency transformer off-grid inverter options
There is not anything I know of that will out surge XW pro 6948. A great monitoring platform and much better support/installer training in the last 18 months. Perfect for a shop with unknown peak surges.
 
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridsolar at sti.net
text 209 813 0060


On 2023-01-13 11:57 am, Jay via RE-wrenches wrote:



 
Hi Mac
 
The radian is low voltage transformer
Based. Has hella surge capacity 
 
I would consider what web based monitoring system he wants and go with that platform. 
 
Regardless of system I'd install
 soft start/vfd on the larger units. Just easier on everything.
 
The solark 12 doesn't seem to be good for larger loads and doesn't do out of balance well, and limited to 6kw per phase. The new 15 might be better, not sure. Numerous YouTube videos showing side by side vs XW and radian. Both run stuff over their rating which the SolA won't run even though its under its rating. 
 
Good luck
 
Jay
 
 
 
 
 
 
 

On Jan 13, 2023, at 11:34 AM, Mac Lewis via RE-wrenches > 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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