Induction motor connections

Discussion in 'General Electronics Chat' started by rvh002@gmail.com, May 15, 2009.

  1. rvh002@gmail.com

    Thread Starter Active Member

    May 15, 2009
    118
    2
    Hi, I need some info on cennecting a 3 phase induction motor to a single phase supply. The star and delta methods and the way to calculate the capacitor size. Thanks
     
  2. rvh002@gmail.com

    Thread Starter Active Member

    May 15, 2009
    118
    2
    You can indeed run a 3phase motor on a aingle phase supply. In the section on Ac motors of this forum it gives an example but not to much detail
     
  3. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    You can run a 3 phase motor with a single phase supply if you connect two of its terminals between neutral and live and put a capacitor between the third motor terminal and live wire.

    However, this reduces the output power of the motor and draws more current from the grid.

    Note that it is illegal to wire large three phase motors like that.
     
  4. rvh002@gmail.com

    Thread Starter Active Member

    May 15, 2009
    118
    2
    At the top of the page you will find a bar with references to some manuals.
    Click on volume II>Chapter 13> AC motors> Tesla polyphase inductive motors.
    Read the whole section, it explains it quite nicely
    Regards
     
Loading...