A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in ohms per phase referred to the stator circuit: R₁ = 0.641Ω R₂ = 0.3320 X₁ = 1.106Ω X₂ = 0.464Ω RM = 26.3Ω The total rotational losses are 1100 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 2.2 % at the rated voltage and rated frequency, find the motor's a) Speed d) Pconv and Pout b) Stator current e) Tind and Tload c) Power factor f) Efficiency Activate

A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in ohms per phase referred to the stator circuit: R₁ = 0.641Ω R₂ = 0.3320 X₁ = 1.106Ω X₂ = 0.464Ω RM = 26.3Ω The total rotational losses are 1100 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 2.2 % at the rated voltage and rated frequency, find the motor's a) Speed d) Pconv and Pout b) Stator current e) Tind and Tload c) Power factor f) Efficiency Activate

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

At rest condition, the slip of induction motor is 0. Select one: True False
choose
7-
In a three-phase induction motor the maximum torque occurs at 20% slip and the equivalent resistance of the secondary is 0.04Ω per phase. Find the equivalent load resistance and the load voltage and the load current. Output power is 20 kW.
Question -9b
In a synchronous generator, a DC current is applied to the rotor windingList two advantages of this arrangement.
10
Due to the presence of two rotating magnetic fields force the three phase induction motor is self starting Select one: O True O False
Q5)A- A 3-phase Induction motor has an efficiency of 0.91 when it delivers an Output power of 22KW. At this load,the stator copper losses equals the rotor copper losses and the total copper losses equals the no- load losses the mechanical losses are one-fourth the no-load losses Find the slip write equations with drawing power flow Diagram ? B-Define the following: (i)Regulation (ii) Slip (iii)Core and shell Transformer (iv)PM motor
The frequency of rotor current in a 6-pole, 50 Hz, 3-phase induction motor running at 950 r.p.m. is (1) 2.5 Hz (iii) 5 Hz (ii) 1.5 Hz (iv) 0.05 Hz