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

[frenergy]

Hilton,

        Others on this list have far more experience in this matter than I.  However, I think the 4024 with a transformer should start and run that motor. The 4024 has a powerful surge AND it's not like your trying to start a submersible well pump motor...a tablesaw motor ramps up and starts unloaded.  Save a bunch of money and use the Xanthrax.  Another way to cheat this inverter to do this particular task is to run a sharp, thin kerf 10" blade instead of the regular 12" blade (or 8" vs. 10")...big difference.

        I'll bet my .02 worth this would work.

Bill




  ----- Original Message ----- 
  From: Hilton Dier III 
  To: re-wrenches at lists.re-wrenches.org 
  Sent: Tuesday, October 29, 2013 7:47 PM
  Subject: [RE-wrenches] To stack or not to stack? Off-grid 240V


  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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