3-phase, 4-pole electric induction motor

Discussion in 'General Electronics Chat' started by pafrazier, May 21, 2013.

  1. pafrazier

    Thread Starter Active Member

    Jun 4, 2011

    Does any one know what gauge wire is used in a 3-phase, 4-pole electric induction motor? Like the one used in Tesla Motors cars. And what the inductance is as well? I believe it is powered by 240 ac.

    Last edited: May 21, 2013
  2. crutschow


    Mar 14, 2008
    It depends mostly on the power and voltage rating of the motor.
  3. shortbus

    AAC Fanatic!

    Sep 30, 2009
    The motors in a Tesla or other EV are not built like an industrial type induction motor. In an off the shelf motor the windings are made of many small diameter wire per pole. The EV motors have a smaller number of very large diameter wires per pole.

    Even though the horsepower may be the same between the two different motors the way they are used is different. An industrial type motor is used at a set (due to the pole count) speed. An EV motor is more of a variable speed motor, spending a lot of it's time at a slow speed that would kill an industrial motor from heat.