trains run on ac or dc??
if ac or dc what are the advantages and disadvantages?????
- 4 Answers
- 15636 Views
- ABB, Infosys, I also Faced
- E-Mail Answers
Answer Posted / ganesh.a
in india trains run on dc power and diesel,
trains can also be run in ac power.
eg: linear induction motor is used in high speed trains in
foreign countries which uses 3 phase ac power.
if ac
adv
no need of converter equipments
can be used for long distance with less cost
disadv
losses will be there
inductance, capacitance effect is there
more conductors needed
if dc
adv
losses wont be there
less no of conducters needed.
disadvan
it needs more cost for long distance
if there is a fault in on converter station
entire transmission will be affected.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Explain why the aspect ratio of tv video display is 4:3 or 16:9? Why not it is any other?
why the pic micro controller have internal eeprom?But in 8051 have only rom and ram.
Define dynamic resistance of a p-n junction diode in forward biased condition.
can any one help me out by posting something related to rvnl interview for site engineer electronics (S & T).? what is the procedure? what type of question they generally ask? how long the interview goes for one candidate? and any tips ??
Define pair, quad, and octet?
What is the advantage of scr?
pls send me the placement papers and anyother useful information to sureshec127@gmail.com. STREAM: ELECTRONICS AND COMMUNICATION
How to measure frequency without cro?
what is orthogonal code of 0
What are the various types of rectifier?
hi i am electronics & telecomm engg & appling 4 the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & old question papers.I will be very much thankful to you. pis inform to venkatesh.muddana86@gmail.com
how to test the mobile tower signals? and which software tool & hardware tools used for test the mobile tower?
SIR,i am applying for the jr.engineer(signal)post.kindly if you send some previos sample question -answer i will be higly obliged
What is the significance of the bandwidth of an amplifier?
please provide me the previous technical papers for ece branch conducted by hpcl
