[RE-wrenches] 100ms for Locked Rotor Amps?

[Jeff Clearwater]

Hey There Wrenches,

So be advised that after a little research the SW dual stack will NOT 
double the surge ratings of a single SW.

But that brings me to my second question:

What inverter surge rating should one refer to when looking at maximum 
Inrush or LRA - 1ms? 100ms?  1 sec?

Yourengineering wisdom welcomed!

Thanks,

Jeff



Jeff Clearwater wrote on 7/23/19 8:27 PM:

> Thanks for the tip! I'll check the firmware.
>
> Dave Angelini Offgrid Solar wrote on 7/22/19 9:11 AM:
>
>> Hi Jeff,
>>
>> I am not going to guess if this will work, it should.  I use XW's 
>> because they start anything I have come across.
>>
>> If you do this, make sure but SW's have the latest and same firmware. 
>> There were problems with stacked SW's early on in their development.
>>
>> *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*
>>
>> On Mon, 22 Jul 2019 07:26:07 -0700, Jeff Clearwater 
>> <jeffc at villagepowerdesign.com> wrote:
>>
>>> Hey Esteemed Wrenches,
>>>
>>> So I recently built a power trailer with a single 4 KW (4048) 
>>> Schneider SW for a client with a moderate cabin lifestyle.
>>>
>>> But he lives on a high hill and even though his 2 HP Macerator is 
>>> only rated at 15 amps continuous that baby starts up with a whopping 
>>> kick - probably close to or at it's 53 Amps Locked Rotor rating.
>>>
>>> The SW has the following surge capability:
>>>
>>> SW 4048 Rated@ 240 Volts:
>>> Continuous - 15.2 Amps 3700 Watts
>>> 30 Minutes - 18.3 Amps 4400 Watts
>>> 5 Secs - 29.2 Amps 7000 Watts
>>> Max (100ms?) - 41 Amps - 9840 Watts
>>>
>>> Can I be confidant that 2 stacked SWs will start this baby?
>>>
>>> Any experience with similar macerators - or simply educated guesses?
>>>
>>> Thanks!
>>>
>>> Jeff
>>>
>> -- 
>>   
>> *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*
>
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20190725/57bd429e/attachment.htm>