6. To raise generator voltage, the a. field current should be increased. b. field current should be decreased. c. speed should be decreased. d. brushes should be shifted forward. 7. Generator voltage output control is usually accomplished by a. varying the speed. b. a rheostat in the field. c. increasing the flux. d. decreasing the flux. 8. In Figure 1-6, the normal voltage regulation for a shunt generator is at a. curve (a). b. a broken line. c. curve (c). d. curve (d). OUTPUT VOLTAGE 0 Volts Ο 0 Amperes LOAD CURRENT FIGURE 1-6 Voltage regulation graphs. Full load Cengage Learning 2014
6. To raise generator voltage, the a. field current should be increased. b. field current should be decreased. c. speed should be decreased. d. brushes should be shifted forward. 7. Generator voltage output control is usually accomplished by a. varying the speed. b. a rheostat in the field. c. increasing the flux. d. decreasing the flux. 8. In Figure 1-6, the normal voltage regulation for a shunt generator is at a. curve (a). b. a broken line. c. curve (c). d. curve (d). OUTPUT VOLTAGE 0 Volts Ο 0 Amperes LOAD CURRENT FIGURE 1-6 Voltage regulation graphs. Full load Cengage Learning 2014
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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Synchronous Generator
In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.
Salient Pole Rotor
Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.
Question
100%
Select the correct answer for each of the following statements
Book Source: Electricity 3 | 10th Edition
ISBN-13:9781111646738 ISBN:1111646732 Authors:Jeffrey J. Keljik
Transcribed Image Text:c. connect the series field to the armature.
d. have the armature in parallel with the commutating poles.
6. To raise generator voltage, the
a. field current should be increased.
b. field current should be decreased.
c. speed should be decreased.
d. brushes should be shifted forward.
7. Generator voltage output control is usually accomplished by
a. varying the speed.
b. a rheostat in the field.
c. increasing the flux.
d. decreasing the flux.
8. In Figure 1-6, the normal voltage regulation for a shunt generator is at
a. curve (a).
b. a broken line.
c. curve (c).
d. curve (d).
OUTPUT VOLTAGE
0 Volts
0 Amperes
LOAD CURRENT
FIGURE 1-6 Voltage regulation graphs.
(d)
(b)
(a)
Full load
ⒸCengage Learning 2014
Transcribed Image Text:5. Generator terminals A1 and A2 are terminals that
a. connect the armature only.
b. connect the shunt field in series with the armature.
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