[RE-wrenches] To stack or not to stack? Off-grid 240V

[jay peltz]

Hi Hilton,

In my experience the only way to know if it will work is to try it.
( it'll run it, but might not start it)
Because there are so many different quality motors out there all with similar "ratings" but they don't work the same.
I've seen a 5hp completely trip off line a 15kw diesel generator.

One option is to swap the motor for a 3 phase and then get a 240 single phase to 3 phase motor speed controller.
This will allow a soft start, very cool stuff.

let us know what you do,

jay

peltz power


On Oct 29, 2013, at 7:47 PM, Hilton Dier III wrote:

> Hello Wrenches,
> 
> I have an off-grid client with a 24V system and an old Xantrex SW4024. He wants 240VAC capability with enough oomph for sometimes making a cut with his 3 hp table saw without starting the generator.
> 
> I am looking at Apollo, Magnum, and Outback inverters. I'm most familiar with Outback. I have a couple of installations out there with stacked 3.6 kW Outbacks.
> 
> However, the Apollo marketing promises that their 3.2 kW inverter will start a 3 hp motor. Will it actually, and is this a good idea even if it can?
> 
> I'd appreciate hearing about your experiences with 240V Apollo units, stacked Magnums, and stacked Outbacks. I know from experience that the Outbacks require some hundreds of dollars of extra fittings and electronics to make a proper stacked installation. How about Magnum? Any comments on reliability?
> 
> Many Thanks,
> 
> Hilton 
>  -- 
> Hilton Dier III
> Renewable Energy Design
> Partner, Solar Gain LLC
> 453 East Hill Rd.
> Middlesex, VT 05602
> 

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