Question

A 460 V 25 hp, 60 Hz; four-pole, Y-connected induction motor has the following impedances: R1 = 0.641 Ω R2e = 0.332 Ω X1 = 1.106 Ω X2e = 0.464 Ω Xm = 26.3 Ω Mechanical loss is 100 W and core loss is 1 kW for a slip of 2.2%. Find: (a) The speed (b) The stator current (c) Power factor (d) The developed and output power (e) The developed and output torque (f) Efficiency

Name: q2ia 460 v 25 hp 60 hz four pole y connected induction motor has the following impedances r1 0641 q r2e 0332 q x1 1106 q x2e 0464 q xm 263 mechanical loss is 100 w and core loss is kw for a 17674
Uploaded: 2023-01-19T08:33:47-08:00
Duration: 5 min 8 s
Channel: Sri K
Description: q2ia 460 v 25 hp 60 hz four pole y connected induction motor has the following impedances r1 0641 q r2e 0332 q x1 1106 q x2e 0464 q xm 263 mechanical loss is 100 w and core loss is kw for a 17674

          A 460 V 25 hp, 60 Hz; four-pole, Y-connected induction motor has the following impedances:
R1 = 0.641 Ω
R2e = 0.332 Ω
X1 = 1.106 Ω
X2e = 0.464 Ω
Xm = 26.3 Ω

Mechanical loss is 100 W and core loss is 1 kW for a slip of 2.2%. Find:
(a) The speed
(b) The stator current
(c) Power factor
(d) The developed and output power
(e) The developed and output torque
(f) Efficiency

Added by James P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

01/19/2023

Step 1

(a) Speed: Since the motor has four poles, it will have four speeds. Show more…

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A 460 V 25 hp, 60 Hz; four-pole, Y-connected induction motor has the following impedances: R1 = 0.641 Ω R2e = 0.332 Ω X1 = 1.106 Ω X2e = 0.464 Ω Xm = 26.3 Ω Mechanical loss is 100 W and core loss is 1 kW for a slip of 2.2%. Find: (a) The speed (b) The stator current (c) Power factor (d) The developed and output power (e) The developed and output torque (f) Efficiency