2 When the synchronous generator operates with pure inductive load* „ it does not exist armature reaction O the armature reaction is in quadrature-axis direction the armature reaction is in direct-axis direction and acts as a magnetization the armature reaction is in direct-axis direction and acts as a demagnetization

2 When the synchronous generator operates with pure inductive load* „ it does not exist armature reaction O the armature reaction is in quadrature-axis direction the armature reaction is in direct-axis direction and acts as a magnetization the armature reaction is in direct-axis direction and acts as a demagnetization

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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Similar questions

An 8-pole, lap-wound armature has 1200 conductors and a flux per pole of 0.03Wb. Determine the e.m.f. generated when running at 500 rev/min.
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Q2. A 4-pole, wave-wound armature has 72 slots with two coil-sides per slot, each coil has four turns. If the flux per pole is 20 mWb and the armature rotates at 720 rpm, what is the induced emf across the armature? (Ans. 276.48 V)
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From a technicians standpoint, how is the stregth of an electromagnet typically varied? a) by varying the number of turns, b) by varying the current flow, C) by barying the core is permeability, d) none A bar of iron said to be saturated once most of its magnetic molecules are aligned whereby increases in magnetomotives force results in smaller and smaller increases in flux in the core. A) true, B) false which of the folloeing is?are tupe of AC genator construction. A) revolving field desing, B) stationary field desing, C) both a and b, D) none
38. A) Armature reaction in a DC generator can be compensated for by inserting__________ between the main field poles. a) interpoles b) commutating poles c) either "a" or "b" d) neither "a" nor "b" B) Intel-poles 11........a) have few turns of large wire b) are connected in series with the armature c) connections are often made internally d) all of the above C) An interpole is a small pole placed between the main poles of a DC generator and connected so as to have the same polarity as the following main pole in the direction of rotation. a) true b) false D) Compensating windings_______________ interpoles. a) serve the same function as b) do exactly the opposite of c) either "a" or "b" d) none of the above
Q2) A 4 pole de generator with 480 armature conductors supplies a current of 144 A. Calculated demagnetizing amp turns per pole found to be quarter cross magnetizing amp turns per pole determine the required displacement angle of the brushes from the neutral magnetic axis if armature field is wave wound.
Draw the circuit. A compound generator has 120V induced voltage. The armature resistance is 1ohms, shunt field resistance is 70ohms and series field resistance is 3ohms Shunt field has 50 turns of thin wire and series field has 5 turns of thick wire. (i) Determine the armature current, terminal voltage, and mmf of the fields. (ii) A load is connected that starts drawing 324W of power at a current such that the mmf of the series field is observed to be 15 A.t. Determine the terminal voltage, armature current, and the induced voltage.