Motor has stator core loss of 1250 W and rotational loss of1000 W. It draws a no-load line current of 20 A at a p.f. of 0.09(lag). When motor operates at a slip of 3%, calculate
a. input line current and p.f. [57.4@29°A, 0.875 lag]
b. electromagnetic torque developed in N-m [230 Nm]
c. output and [34075 W]
d. efficiency of the motor. [88.7%]
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