Find the maximum torque slip at maximum torque and the


A 400 V, 4-pole, 7.5 kW, 50 Hz, 3-phase induction motor develops its full-load torque at a slip of 4%. The per phase circuit parameters of the machine are

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Mechanical, core and stray losses may be neglected.

(a) Find the rotor resistance (as referred to stator)

(b) Find the maximum torque, slip at maximum torque and the corresponding rotor speed

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Electrical Engineering: Find the maximum torque slip at maximum torque and the
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