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a. the speed is increased by 20 percent? b. the direction of rotation is reversed? the oroi

a. the speed is increased by 20 percent? b. the direction of rotation is reversed? the oroi

Computer Networking: A Top-Down Approach (7th Edition)
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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The terminal voltage of a shunt generator ordecreases with increasing load. Explain. induce tated b Toub Explain why the output voltage of an over- 15 Brush o compound generator increases as the load alioo increases. tedt Fig. 1. broe coils.! 8 Explain the difference between shunt, com- pound, and differential compound generators (o) turns t LGUI -o a. as to construction ni olob. as to electrical properties to moldoig orlh or Intermediate level 16 The ge Calcul each a 9oinmA separate excited dc generator turning at RYBW1400 r/min produces an induced voltage of Amm 127 V. The armature resistance is 2 2 andm onos the machine delivers a current of 12 A. T 17 a. Ho gen b. If tl cur (g) Calculate con a. the terminal voltage [V] o gonnto UCG b. the heat dissipated in the armature [W]o Advanced le 18 The vc c. the braking torque exerted by the to darnd od armature [N m] 10tm A separately excited dc generator produces a to so no-load voltage of 115 V. What happens if rdaind a. the speed is increased by 20 percent?dod nt b. the direction of rotation is reversed? bne C. the exciting current is increased by orb lo 10 percent? d. the polarity of the field is reversed? pinap ta c Why c. segmer 61 Referri of Exy qunb clockw 20 a. In F 11 Each pole of a generator has a shunt field of 2000 turns and 100kW, 250 V flat-compound betw SCUGLL kno cloc
Transcribed Image Text:The terminal voltage of a shunt generator ordecreases with increasing load. Explain. induce tated b Toub Explain why the output voltage of an over- 15 Brush o compound generator increases as the load alioo increases. tedt Fig. 1. broe coils.! 8 Explain the difference between shunt, com- pound, and differential compound generators (o) turns t LGUI -o a. as to construction ni olob. as to electrical properties to moldoig orlh or Intermediate level 16 The ge Calcul each a 9oinmA separate excited dc generator turning at RYBW1400 r/min produces an induced voltage of Amm 127 V. The armature resistance is 2 2 andm onos the machine delivers a current of 12 A. T 17 a. Ho gen b. If tl cur (g) Calculate con a. the terminal voltage [V] o gonnto UCG b. the heat dissipated in the armature [W]o Advanced le 18 The vc c. the braking torque exerted by the to darnd od armature [N m] 10tm A separately excited dc generator produces a to so no-load voltage of 115 V. What happens if rdaind a. the speed is increased by 20 percent?dod nt b. the direction of rotation is reversed? bne C. the exciting current is increased by orb lo 10 percent? d. the polarity of the field is reversed? pinap ta c Why c. segmer 61 Referri of Exy qunb clockw 20 a. In F 11 Each pole of a generator has a shunt field of 2000 turns and 100kW, 250 V flat-compound betw SCUGLL kno cloc
Expert Solution
Step 1

Given,

no-load voltage (Eg1)=115V

i. Speed increased by 20 percent:

We know that E ∝ N

Hence,   Eg1Eg2=N1N2

since speed increased by 20 percent, N2=1.2N1

Eg2=Eg1(1.2N1)N1

       =(115)*1.2

       =138

 

Hence, if the speed is increased by 20percent the voltage becomes 138 volts

 

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