An induction motor has a short-circuit current equal to five times the full-load current and full load slip is 4%. If the motor is started by a direct-online starter, then the ratio of the starting...

Extracted text: An induction motor has a short-circuit current equal to five times the full-load current and full load slip is 4%. If the motor is started by a direct-online starter, then the ratio of the starting torque 'Tst to the full load torque 'Tf' is given by