:: 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                      
Categories >> Engineering >> Electrical Engineering


 Civil Engineering interview questions  Civil Engineering Interview Questions (3077)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3289)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13333)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2363)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (416)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (79)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (163)
 Instrumentation interview questions  Instrumentation Interview Questions (2381)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (106)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (44)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (77)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1196)
how does electrical train works and what type of motors are 
used to drive the train?
which level of supply voltage is used?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
# 1
electrical train works with electrical drive " asystem
consists of motors , gears and belts "
the type of motor used is direct current motor or exactly
dc series motor becas it has high starting torque for
moving the train from the stationary state
Is This Answer Correct ?    208 Yes 27 No
# 2
First the train receive 25KV supply from the overhead
transmission line and it step down and converts it into D.C
voltage. And given to D.C series motor. Because the motor
needs heave starting torque to move the stationary train.

Anybody kindly give e a feedback.
Is This Answer Correct ?    124 Yes 17 No
# 3
Motors used for electric trains are 3-phase induction
motors,DC series motors
3-phase induction motors- from the sub sstation the supply
is 25 KV or 33 KV.Loco consists of a step down transformer
where this 25 or 33KV is stepped down to 750 v to 1500 v.
DC series motors -600 v dc
force or torque is tansferred from motor shaft to pinion,
gear wheel,driving wheel.
Is This Answer Correct ?    83 Yes 32 No
# 4
Electrical train works by DC series motors.25Kv supply is
Is This Answer Correct ?    49 Yes 28 No
# 5
Electric Trains work on DC Series motors

The Overhaed supply is 25kV AC supply. It is step down and
rectified to use at DC supply
Is This Answer Correct ?    22 Yes 6 No
# 6
Electric train runs by using either DC Series Motor or 3-
phase Induction motor
the train receives 25kv voltage, transformer in it steps
down the voltage to 600v ac and then converted to dc for dc
series motor and 750v ac for induction motors.
Is This Answer Correct ?    29 Yes 18 No
# 7
train use dc series motor...the 25kv 1phase catenary is
stepdown and converted to dc.......this dc supply is given
to dc series motor........
Is This Answer Correct ?    4 Yes 0 No
Dileep Gopalakrishnan
# 8
Train uses the d.c series motor.An electric train recive
25*1000v from the overhead lines which voltage rectifi(step
down) by the transformer to 600 a.c voltages which further
convert to d.c voltage bcoz d.c series motor for starting
torque high.
Is This Answer Correct ?    3 Yes 0 No
# 9
most probably we use dc series motor .because in dc starting
torque is maximum. so that it is efficient to start up the train
Is This Answer Correct ?    3 Yes 0 No
# 10
I think that an electric train work on the 3phase induction motor. And they use capacitor start for running the motor during the starting condition to produce high starting torque which produces high starting speed.....
hit yes if u support the answer given by me or else comment on it if it is wrong so that i can get to know my capability..
Thank you....
Is This Answer Correct ?    7 Yes 4 No
Santosh Devath

Other Electrical Engineering Interview Questions
  Question Asked @ Answers
single sphase energy meter measur   7
what difference beetwin phase voltage & line voltage and phase current& line current ?   1
i want to trigger ATS (Mains +Generator )from external system could any body help me in this regard ?? is it posible if yes please tell me how?   1
what is stray capacitance?   1
How to select Main CB Rating for 187 KW Load?   6
How transformer winding & oil gets heat.   3
why the value of impedence is taken as %impedence in fault currrent calculation   1
All we know about T/R, Is it possible to make T/R primery singlr phase and secondery three phase,If it then how?... Need Description   1
I am final year student..i applied for gate but i am not interested any of my engineering subjects. i am interested in management wise.. is my option correct after   1
what is the difference between power transformer & distribution transformer and what are their ratings respectively?   4
For more Electrical Engineering Interview Questions Click Here 

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