The locked rotor current in a 3-phase, star connected 15kW, 4-pole, 230V, 50Hz induction motor at rated conditions is 50A. Neglecting losses and magnetizing current, the approximate locked rotor line current drawn when the motor is connected to a 236V, 57Hz supply is [GATE2012]

The locked rotor current in a 3-phase, star connected 15kW, 4-pole, 23

1.	The locked rotor current in a 3-phase, star connected 15kW, 4-pole, 230V, 50Hz induction motor at rated conditions is 50A. Neglecting losses and magnetizing current, the approximate locked rotor line current drawn when the motor is connected to a 236V, 57Hz supply is [GATE2012]
A.	58.5A
B.	45.0A
C.	45.7A
D.	55.6A
Answer» C. 45.7A