10 A separately excited de generator produces a no-load voltage of 115 V. What happens if a. the speed is increased by 20 percent? b. the direction of rotation is reversed? c. the exciting current is increased by 10 percent? d. the polarity of the field is reversed?
10 A separately excited de generator produces a no-load voltage of 115 V. What happens if a. the speed is increased by 20 percent? b. the direction of rotation is reversed? c. the exciting current is increased by 10 percent? d. the polarity of the field is reversed?
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
10 letters c and d
![The terminal voltage of a shur
6
deereases with increasing load. Explein
Explain why the ouiput voltage of an over
compound generator inereases as the lond
15 Wh ie p
Explain the difference between shunt, com
pound, and differential compound generators
a. as to construetion
b. as to electrical properties
wwww. 91
900 shesis ane
Calestate the
ww.
ww.Mow
Intermediate level
9 A separate excited de generator turning at
1400 r/min produces an induced voltage of
127 V. The armature resistance is 2 2 and
the machine delivers a current of 12 A.
17 # Mow
Calculate
a. the terminal voltage [V]
b. the heat dissipated in the armature [W]
c. the braking torque exerted by the
armature [N m]
Advanced level
18 The voltage
10 A separately excited de generator produces a
no-load voltage of 115 V. What happens if
a. the speed is increased by 20 percent?
b. the direction of rotation is reversed?
c. the exciting current is increased by
10 percent?
d. the polarity of the field is reversed?
11 Each pole of a 100 kW, 250 V flat-compound
segments 3:
Referring to
61
of E when
clockwise.
20 2. In Fig 3
generator has a shunt field of 2000 turns and
Buying](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F585e4a80-646c-4418-ada9-cb992a2ce44b%2Fe9e2dc17-b787-4e8d-8afd-65159c46cc8a%2Fwui3y6r.jpeg&w=3840&q=75)
Transcribed Image Text:The terminal voltage of a shur
6
deereases with increasing load. Explein
Explain why the ouiput voltage of an over
compound generator inereases as the lond
15 Wh ie p
Explain the difference between shunt, com
pound, and differential compound generators
a. as to construetion
b. as to electrical properties
wwww. 91
900 shesis ane
Calestate the
ww.
ww.Mow
Intermediate level
9 A separate excited de generator turning at
1400 r/min produces an induced voltage of
127 V. The armature resistance is 2 2 and
the machine delivers a current of 12 A.
17 # Mow
Calculate
a. the terminal voltage [V]
b. the heat dissipated in the armature [W]
c. the braking torque exerted by the
armature [N m]
Advanced level
18 The voltage
10 A separately excited de generator produces a
no-load voltage of 115 V. What happens if
a. the speed is increased by 20 percent?
b. the direction of rotation is reversed?
c. the exciting current is increased by
10 percent?
d. the polarity of the field is reversed?
11 Each pole of a 100 kW, 250 V flat-compound
segments 3:
Referring to
61
of E when
clockwise.
20 2. In Fig 3
generator has a shunt field of 2000 turns and
Buying
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