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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.

and that phase power . P. PH, phase voltage V. 1 , and phase current I. 1. are measured, R. 2, X. 1, and X. 2. can be calculated for the motor from the locked rotor test data. From the data obtained from the no-load test, we can determine the values for …

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