Research Article

Application of Wedges for the Reduction of the Space and Time-Dependent Harmonic Content in Squirrel-Cage Induction Motors

Table 4

Torque rotor slot-related harmonics amplitudes.

Harmonic (Hz)Open slots (dB)Harmonic (Hz) Wedged (dB)

30−51,6327,69−56,76
283,1−52,71282,3−56,56
331,5−72,39327,7−95,95
553,8−64,25554,6−73,02
613,1−64,34610−72,93