Question

A 230-V, 15-hp, 60-Hz, 6 pole, 3 phase induction motor driving a constant torque load at
rated conditions with the speed of 1125 rpm. Determine the new operating speed if the
supply system is disturbed by the 8% drop in voltage and 4% drop in the frequency. The
efficiency of the motor is 89.2%. Assume mechanical and stray losses to remain constant
throughout the operation
(a) 1128.19 rpm
(b) 1147.32 rpm
(c) 1107.21 rpm
(d) 1114.93 rpm​

Answer 1

Answer:

d

Explanation:

okokolol