|A 415V, 50HZ, delta-connected, 4-pole, squirrel cage induction motor has a per- phase equivalent circuit as shown in Figure Q4(b). The circuit parameter values | (in /phase) for the stator is as follows: R1 = 0.095 2 ; R2 = 0.06 2; X1 = 0.68 N;X2 = 0.67 Q; Xm= 18 Q The motor is running at 1400 rpm at full-load. The core loss of the motor is assumed to be zero. The total friction and windage losses is 600 W, independent of load. Determine the efficiency of the motor.

Question

(b) A 415V, 50Hz, delta-connected, 4-pole, squirrel cage induction motor has a perphase equivalent circuit as shown in Figure Q4(b). The circuit parameter values (in Ω/phase) for the stator is as follows: R1 = 0.095 Ω ; R2 = 0.06 Ω; X1 = 0.68 Ω ; X2 = 0.67 Ω; Xm = 18 Ω The motor is running at 1400 rpm at full-load. The core loss of the motor is assumed to be zero. The total friction and windage losses is 600 W, independent of load. Determine the efficiency of the motor.

|A 415V, 50HZ, delta-connected, 4-pole, squirrel cage induction motor has a per-
phase equivalent circuit as shown in Figure Q4(b). The circuit parameter values
| (in /phase) for the stator is as follows:
R1 = 0.095 2 ; R2 = 0.06 2; X1 = 0.68 N;X2 = 0.67 Q; Xm= 18 Q
The motor is running at 1400 rpm at full-load. The core loss of the motor is
assumed to be zero. The total friction and windage losses is 600 W, independent
of load. Determine the efficiency of the motor.
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Transcribed Image Text

|A 415V, 50HZ, delta-connected, 4-pole, squirrel cage induction motor has a per- phase equivalent circuit as shown in Figure Q4(b). The circuit parameter values | (in /phase) for the stator is as follows: R1 = 0.095 2 ; R2 = 0.06 2; X1 = 0.68 N;X2 = 0.67 Q; Xm= 18 Q The motor is running at 1400 rpm at full-load. The core loss of the motor is assumed to be zero. The total friction and windage losses is 600 W, independent of load. Determine the efficiency of the motor.