X ACdocs.google.com/forms/d/e/1FAlpQLSfa1_Fcy2z3FUBw2-aDiFTranslate Mapgmail M pdf convert ugKJI jsbao P äwly Jguaáll A smallpdfSection 5: Choose the correct AnswerWhat happens if field winding of the synchronous motor is short* circuitedFirst, starts as induction motor then run as synchronous motorNot startMotor will burn outRun as induction motor (( هذا السؤال مطلوبLa dn j When the field of a synchronous motor is over excited, the power factor* will beLeading OLagging OZero OUnity O* The synchronous motors are not self-starting becauseThe direction of torque on the rotor reverses after every half cycle.Slip is not present in synchronous machine OhpO O O

Answered: Image /qna-images/answer/8020b7d7-937f-4598-be54-3e9b72e3c303.jpg

What happens if field winding of the synchronous motor is short * circuited First, starts as induction motor then run as synchronous motor O Not start O Motor will burn out O Run as induction motor O 0 هذا السؤال مطلوب When the field of a synchronous motor is over excited, the power factor

What happens if field winding of the synchronous motor is short * circuited First, starts as induction motor then run as synchronous motor O Not start O Motor will burn out O Run as induction motor O 0 هذا السؤال مطلوب When the field of a synchronous motor is over excited, the power factor

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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K-1)The speed of a 3-phase wound-rotor induction motor can be changed by varying the amount of resistance in the rotor circuit. a) true b) false K-2). Which of the following statements are true about a 3-phase synchronous motor? a) It is a constant speed motor even under varying loads. b) It runs at the same speed the magnetic field rotates on the stator. c) It can correct its own, and the supply line's power factor d) all of the above K-3. A) What determines the speed of a 3-phase synchronous motor? a) the number of poles b) the frequency of the supply c) both "a" and "b" d) neither "a" nor "b" K-3)B) From a technician's standpoint, which of the following is the most practical method of providing a wide range of speed control for a 3-phase synchronous motor? a) by changing the frequency b) by changing the number of poles c) both "a" and "b" d) neither "a" nor "b"
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