ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Engineering >> Electrical Engineering
 
 


 

 
 Civil Engineering interview questions  Civil Engineering Interview Questions (3129)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3300)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13439)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2385)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (420)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (80)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (165)
 Instrumentation interview questions  Instrumentation Interview Questions (2399)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (107)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (45)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (80)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1203)
Question
why dc supply given to ac alternator rotor
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
It is always better to give DC supply to the field then
only we can get continuous output i.e sine wave from the
stator of an alternator.
 
Is This Answer Correct ?    9 Yes 0 No
G .senthilkumaran
 
Answer
# 2
the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and dc current not producec e.m.f. is induced
so the
electrical power will be zero
 
Is This Answer Correct ?    2 Yes 0 No
Hansraj
 
 
 
Answer
# 3
the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and then there is no emf is induced so the
electrical power will be zero
 
Is This Answer Correct ?    3 Yes 3 No
Veeru
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
1.Defination of Graund earth and neutral 2.   8
What is the technical name of Transformer Oil ? Bhel 16
CONTACTORS ARE MADE UP OF WHICH MATERIAL? IOCL 6
Why we use the D-curve MCBs in critical power distrubution. Sodexo 4
Why insulation layer of a High Voltage cable is more than a current carrying cable?   3
what is the main use of ac and dc drives ? it is only used for speed variation or for power saver also?   1
1.what to do if ferquency of any power system continue to decrease ? NTPC 5
a voltmeter shows 100v..wat is to be done to make it read 150v.   7
What is the operating range of voltage and current in grid supply in India? BARC 4
what is the calculation of current when a clampmeter is attached to two phases of any drives. ABB 3
what is the function of mccb?   6
What is meant by Active and reactive power? Siemens 5
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com