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 (3131)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3300)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13444)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2386)
 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 (2402)
 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
How the electric train gets the supply of electricity? What 
is the return path of the current?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
now the supply for traction is 25KV AC.connected through
pantograf. this supply is given to an onload tap changing
transformer with a secondary voltage of 800v. this through
semiconductor devices converted and applied to traction
motor. the return path is the rails through brushes in the axils
 
Is This Answer Correct ?    19 Yes 0 No
Baskaran.r
 
Answer
# 2
actually input supply is AC .the return path is provided in
track by using rectifier Ac converted into DC & its fed to
Input supply of DC series motor so electric train is run
by dc series motor
 
Is This Answer Correct ?    16 Yes 5 No
Kumar
 
 
 
Answer
# 3
25 KV single phase AC is fed from the feeding post which is
steped down by the transformer to about 600V required by DC
series motors but before feeding this voltage to DC motors
it is converted in to DC by rectifiers and filtered with
the help of choke filter.
 
Is This Answer Correct ?    7 Yes 0 No
Sushil259
 
Answer
# 4
The 25 KV single phase AC supply is applying to the step
down transformer by the feeding post line.The return path
of the current is track line.the track line is connected to
the proper earth for the safety purpose.The stepped down AC
supply is converted to the rectified DC supply by the
rectifier, filter circuit.now the DC supply is connected to
the DC series motor.DC series motor is very suitable for
startind high torque.
 
Is This Answer Correct ?    6 Yes 0 No
Dhinakaran.s
 
Answer
# 5
the railway track acts as a return path........... 
Is This Answer Correct ?    5 Yes 1 No
S.rajesh
 
Answer
# 6
Train moves on 25kv single phase AC voltage supplied through
the catenary wire by pantograph on the roof of the train .
then it goes through converter inverter process where the
voltage is reduced and make suitable for the 3 phase
induction motors.and the track is connected is connected as
return conducter
 
Is This Answer Correct ?    5 Yes 10 No
Gaurav
 
Answer
# 7
generally electrical train gets supply of 25kv dc from the
above wiring in the train .in train we convert the dc to ac
by using inverter then we use the electric supply and the
return path of current is the track of rail which is
grounding...
 
Is This Answer Correct ?    1 Yes 9 No
Naveen Kumar Sharma
 
Answer
# 8
the train supply getting from dc power line above the
train.it will be 25kv dc voltage collecting from T type
dsl.it is two wire system one line & is train is return
path.
 
Is This Answer Correct ?    5 Yes 20 No
Vaiku
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what will happen at the time of CT saturation?and what will be the Relay's function at the time of CT saturation?   1
why two contacts(in series) are using in closing circuit   3
How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.   1
Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.   2
On the transformer breather at what length should i change my sililca gel.   4
How to calculate the size of the conductor for particular load HCL 7
tube light how its working.,?   3
In directional earth fault protection for generator, one core balance CT is for residual current, what other CT is for, which is placed on neutral?   1
WHAT IS THE USE OF STARTER AND CHOKE IN TUBE LIGHT? Siemens 1
In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?   5
What is the correct procedure to shutdown VCB in 11kv substation.safety and work procedure   2
What is load staggering or load shifting in the context of power distribution?   1
 
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