A 1-0, induction motor has stator windings in space quadrature and is supplied with a single-phasevoltage of 200 V at 50 Hz. The standstill impedance of the main winding is (5.2 +j 10.1) and of theauxiliary winding is (19.7 + j 14.2). Find the value of capitance to be inserted in the auxiliarywinding for maximum starting torque.(Electrical Machines-III, Indore Univ. July, 1977)A 230-V, 50-Hz, 6-pole, single-phase induction motor has the following constants.r, = 0.12 2, r, = 0.14 N, x, = x, = 0.25 Q, x„ = 15 2.If the core loss is 250 W and friction and windage losses are 500 W, determine the efficiency andtorque at s = 0.05.(Electrical Machines-IV, Bangalore Univ. Aug. 1978)Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent totwo oppositely-rotating fields. Develop an expression for the torque of the motor.A 125-W, 4-pole, 110-V, 50-Hz single-phase induction motor has the no-load rotational loss of 25watts and total rotor copper loss at rated load of 25 watts at a slip of 0.06. The rotor *R loss may beneglected.At a slip s = 0.06, what is the power input to the machine ?(Electrical Machines-III, Indore Univ. July 1977)

Answered: Image /qna-images/answer/d3879cb3-9c76-4526-88b8-ea9b7c16d7fd.jpg

A l-0, induction motor has stator windings in space quadrature and is supplied with a single-phase voltage of 200 V at 50 Hz. The standstill impedance of the main winding is (5.2 +j 10.1) and of the auxiliary winding is (19.7 + j 14.2). Find the value of capitance to be inserted in the auxiliary winding for maximum starting torque. (Electrical Machines-III, Indore Univ. July, 1977)

A l-0, induction motor has stator windings in space quadrature and is supplied with a single-phase voltage of 200 V at 50 Hz. The standstill impedance of the main winding is (5.2 +j 10.1) and of the auxiliary winding is (19.7 + j 14.2). Find the value of capitance to be inserted in the auxiliary winding for maximum starting torque. (Electrical Machines-III, Indore Univ. July, 1977)

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...

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