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Explain with neat diagram the static rotor resistance control method for the speed control of 3 phase induction motor.
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written 8.7 years ago by | • modified 8.7 years ago |
1) In a slip ring induction motor ( SRIM) , a three phase variable resistor R2 can be inserted in the rotor circuit as shown in Fig 12.37 (a) . By varying the rotor circuit resistance R2 . the motor torque can be controlled as shown in fig 12.37 ( …