Transcription of THREE-PHASE INDUCTION MOTOR
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THREE-PHASE INDUCTION MOTOR
INDUCTION Machines - 1 THREE-PHASE INDUCTION MOTOR March 2007 A. PREPARATION 1. Introduction 2. The Rotating Field 3. Rotor Currents 4. INDUCTION MOTOR Equivalent Circuit 5. Torque and Power Characteristics 6. Operation Beyond the Range 0 < s < 1 7. Determination of MOTOR Constants 8. Bibliography B. EXPERIMENT 1 . Equipment List 2. Speed and Direction of Rotation 3. Starting Current 4. No Load Test 5. Locked Rotor Test C. REPORT INDUCTION Machines - 2 INDUCTION Machines - 3 INDUCTION Machines - 4 INDUCTION Machines - 5 INDUCTION Machines - 6 INDUCTION Machines - 7 INDUCTION Machines - 8 INDUCTION Machines - 9 INDUCTION Machines - 10 INDUCTION Machines - 11 INDUCTION Machines - 12 INDUCTION Machines - 13 INDUCTION Machines - 14 Rather than the equivalent circuit of Fig. 10, we choose one more akin to Fig. 9 to yield the result shown in Fig. 13.
make a DC measurement of stator winding line-to-line resistance using a DMM. 3. Speed and Direction of Rotation . The motor is mounted in a test rig that allows one to control the torque applied to the motor shaft and to measure both rpm and torque. The rpm sensor operates on a Hall effect principle and consists of a disk bearing on its periphery
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