Question
A 4 pole, 3 phase induction motor, with a star connection, 60 Hz, 5 hp, 220 V has the following parameters in stator side:Rs =
A 4 pole, 3 phase induction motor, with a star connection, 60 Hz, 5 hp, 220 V has the following parameters in stator side:Rs = 0.545 ?, R = 0.541 ?, ?? + ? 1.68 ?Slip at full load is 5% and load torque is given by:T? (s) [106.1? (1s)2] * 1.362Nma. Find nominal torque and nominal currentb. Find starting torque and starting currentc. Does the motor start with the given load?d. If the maximum current limit is 3 times of the nominal current, how much resistance should be added to the circuit to limit the starting current to its maximum limit? Does the motor start with this current?
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