Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

trains run on ac or dc??
if ac or dc what are the advantages and disadvantages?????

Answer Posted / rocky

The overhead supply of the train is 25kv ac,single phase.
In earlier locomotives this ac supply was converted to dc
to run the DC Series Motor of locomotives.

But now a days, due to availability of IGBT converters &
speed controller drives, single phase induction motors are
being used. These single phase induction motors have better
efficiency and are more robust and maintenance free than
the DC Series motors, and so they are preferred choice for
locomotives these days

Is This Answer Correct ?    31 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain the approximate cost of the monitoring cables time domain reflectometry?

965


What is the turn-off time for converter grade scrs and inverter grade scrs?

1061


Compare csi and vsi?

1299


Which type of power plant is more easier to produce electrical power at economical condition?

2033


Why do we need Interview?

2035


i am electronics & comm 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, snehalsanap@gmail.com

1977


Describe transducer ei pickups in instrumentation and control engineering?

1022


Impedence of a parallel resonant circuit at resonance is ?

1153


What is astigmatism control?

1055


I am studing Diploma Electronics from International Council for Management Studies-CHENNAI. Is it useful for getting engineering job within india or international ?

1921


What type of questions are asked in Tetra pak onlinr test

1810


How rectangular filter are practically made?

1009


What is the main purpose of power electronics?

1004


Why is transistor called a current controlled device ?

1007


why we use low and high radio band in m/w link at both end

2007