[RE-wrenches] Low Frequency transformer off-grid inverter options
Darryl Thayer
darylsolar1 at gmail.com
Sat Jan 14 14:37:52 PST 2023
Hello i have an XW Pro that starts a 2 HP induction motor reliably, i
noticed th scope indicates battery voltage current issue, be sure your
batteries can supply the starting surge. I recently installed a new set of
batteries. Some not all Li can surge.
On Sat, Jan 14, 2023, 5:13 PM bob--- via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:
>
> Three (3) weeks is also what I am being told. Part of the delay was that
> ETL/Intertek dropped the ball, big time.
>
> Actually, ETL ran out of brains and we had to go to another NRTL
> altogether for inverters.
>
> And yes, it does surge very well.
>
> Merry new year, all !
>
> 🌜boB🌛
>
> On 1/14/2023 11:40 AM, William Bryce via RE-wrenches wrote:
>
> I am told the RE (off grid version) will be available through normal
> distribution in 3 weeks.
> As a Beta tester for this inverter I can say the use of SiC Fets is a
> game changer.
>
> On Sat, Jan 14, 2023 at 11:22 AM Mac Lewis via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> 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> 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> 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> 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/ <http://members.sti.net/offgridsolar/>
>>>>> e-mail offgridsolar at sti.net <offgridsolar at sti.net>
>>>>> text 209 813 0060 <209%20813%200060>*
>>>>>
>>>>>
>>>>> On 2023-01-13 11 <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:
>>>>> <%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
>>>>> _______________________________________________
>>>>> List sponsored by Redwood Alliance
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>>>>> --
>>>> Chris Sparadeo
>>>>
>>>>
>>>> C_802-369-4458
>>>> H_802-728-3059
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>>
>> --
>>
>>
>>
>> Mac Lewis
>>
>> * "Yo solo sé que no sé nada." -Sócrates *
>> _______________________________________________
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