Analysis of Starting Process for Medium-Sized Induction Motors With High-Voltage

In order to more accurately analysis the starting process of medium-sized motors with high-voltage, the dynamic model of three-phase induction motor was established. The starting characteristics of the new medium-sized motors with high-voltage were calculated, based on this, the stator and rotor temperature rise was calculated, combined with the heat dissipation mode the amount of time for motors to reach thermal equilibrium was calculated. Compared with the steady-state characteristic curve, the dynamic characteristic curve is much closer to the practical situation and the temperature rise is in accord with the experimental value.