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

Mon Jan 16 13:29:08 PST 2023

Mac,

Victron would work quite well as well. The biggest drawback is that they don't have a single unit for 120/240, but stacking two units works great and they have been really good for surge capacity in my opinion.

I admit that I am biased. I've been using Victron for 6 years, and 3 years ago. About 3 years ago, I switched away from Outback and Schneider and started primarily using Victron. When I did, my equipment failure rate plummeted. In my own experience, Victron has been significantly more reliable, so I've become a real Victron advocate. Obviously, the other brands do have some advantages. Outback's online platform (optics RE) is the best for making it easy to adjust settings remotely from any device like your phone. Contact me off-list if you are interested in Victron, and I'll give you a lot more info about Victron.

Thanks,
Kienan Maxfield

Green-Go Solar Distribution LLC
Maxfield Solar LLC (installation and consulting company)
maxfieldsolar at hotmail.com<mailto:maxfieldsolar at hotmail.com>
(801) 631-5584 (Cell)
________________________________
From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> on behalf of Mac Lewis via RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Saturday, January 14, 2023 9:20 AM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Cc: Mac Lewis <maclewis1 at gmail.com>
Subject: Re: [RE-wrenches] Low Frequency transformer off-grid inverter options

Fully appreciate everyone's input.

The Midnite Rosie sounds interesting for sure.  Midnite is a great company with great support.  Smart people answer the phone and that really counts for a lot.

How are you getting your hands on these?  I can't seem to find much info, no spec sheets etc.  None of my vendors have them and Midnite is estimating Apr 2023 as the release date.

On Sat, Jan 14, 2023 at 8:34 AM William Bryce via RE-wrenches <re-wrenches at lists.re-wrenches.org<mailto:re-wrenches at lists.re-wrenches.org>> wrote:
I run the XW6848 in my shop. When running my CNC plasma table the XW will shutdown due to exceeding its output rating if it is a long cut on metal when the 4HP compressor kicks on.
I also have a Midnite Solar Rosey, both are connected to the same battery so it's an equal comparison. The Rosy inverter will surge right through and finish the job, the XW is not in  the same league when comparing surge capability.

 A bonus is that the Rosey is really quiet as it does not have that big heavy transformer making noise under heavy load. It is easy to install as it is not as heavy. So far it's a game changer in regards to inverter hardware that I have tested.

On Fri, Jan 13, 2023 at 9:54 PM Chris Sparadeo via RE-wrenches <re-wrenches at lists.re-wrenches.org<mailto:re-wrenches at lists.re-wrenches.org>> wrote:
I have a client with a large woodworking shop…cabinet table saw, large 20” 240V bench planer, chop saws, compressors and a vacuum system. A single Sol Ark 15K takes care of these loads flawlessly. It seems that that inductive load snag with the smaller models has been resolved with the 15K.

Best,

Chris

On Fri, Jan 13, 2023 at 7:34 PM Glenn Burt via RE-wrenches <re-wrenches at lists.re-wrenches.org<mailto:re-wrenches at lists.re-wrenches.org>> wrote:
According to a seminar I just attended, the new Midnite Solar Rosie will...

-Glenn
Sent from my 'smart'phone, so please excuse typos and spelling errors.

------ Original message------
From: Dave Angelini Offgrid Solar via RE-wrenches
Date: Fri, Jan 13, 2023 3:55 PM
To: 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<mailto:offgridsolar at sti.net>
text 209 813 0060<tel:209%20813%200060>

On 2023-01-13 11<tel:2023-01-13%2011>: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:<mailto:%3Cre-wrenches at lists.re-wrenches.org>

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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Mac Lewis

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