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  1. E

    is there any gain to switch an from single phase air comp motor to 3 phase with a VFD to draw less amps

    But adding the right amount of capacitance to the motor, will decrease both no load and full load amps significantly, for nearly free and will last 100,000 hours where as a cheap vfd might last a few years. can you add capacitance to an existing 120v single phase 1 hp motor? how would you do that ?
  2. E

    is there any gain to switch an from single phase air comp motor to 3 phase with a VFD to draw less amps

    Thanks for the reply's it has to be portable and small enough to get into a apt building parking garage sprinkler/ water service room, usually at night mostly on weekends these never fail when its convenient, I like the idea of maybe a smaller motor 120v 1 hp is13.1 amps, trying to find a...
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    is there any gain to switch an from single phase air comp motor to 3 phase with a VFD to draw less amps

    I have a hypothetical question, i don't think will work But i need to ask it- keep in mind i realize its a big investment in materials but its worth it to me if its possible? We have portable temporary 2 hp air compressors that are 120-240v 1 phase 15/7.5 FLA compressors - we install these in...
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