Title :
Characteristics of a squirrel cage induction motor
Author :
Hong, C.G. ; Ho, S.C. ; Hwang, G.J.
Author_Institution :
Dept. of Power Mech. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fDate :
5/1/1991 12:00:00 AM
Abstract :
The authors investigate the magnetic field distribution in a 1 hp three-phase induction motor. Utilising a triangular finite-element method, the magnetic field in the motor is analysed at various balanced magnetomotive forces, and four different rotor positions. From the field solutions, the flux linkages and the slot leakages are found for a range of magnetising currents. An experiment using a straight laminated rotor core without aluminium bars is tested at the four locked positions by using a 20 kVA balanced three-phase transformer with a frequency of 60 Hz. The stator currents, line-to-line voltages and power factors are measured. The experimental data are compared with the calculated results and a reasonable agreement is found
Keywords :
finite element analysis; magnetic fields; rotors; squirrel cage motors; 1 hp; 20 kVA; 3-phase induction motor; 3-phase transformer; 60 Hz; flux linkages; laminated rotor core; line-to-line voltages; magnetic field distribution; magnetomotive forces; power factors; rotor positions; slot leakages; squirrel-cage motors; stator currents; triangular finite-element method;
Journal_Title :
Electric Power Applications, IEE Proceedings B
