Answer / annu

IN INDIAN RAILWAY 25000V SINGLE PHASE AC SUPPLY IS USED
WHICH IS CONVERTED IN D.C THROUGH A RECTIFIER SET BECAUSE
IN ELECTRIC ENGINE WE ARE USING DC SERIES MOTOR AND FOR
THIS WE NEED DC SUPPLY . CAUSE OF USING DC SERIES MOTOR IS
THAT ITS STARTING TORQUE IS TOO HIGH IN ALL MOTORS.

Answer / mohan

in india 25kv ac but it converts in to dc

Answer / rrl

25kv

Answer / amjad

AC 25KV

Answer / arun

25000 v single phase ac is converter to 1500 v dc.in
electric train dc series motor is used because of high
starting torque and speed control is good and also good
breaking..

Answer / dk

single phase supply of 25kv

Answer / karthik

In India 25KV AC traction is used. But in Mumbai as of
December 2010, from Mumbai CST to Kalyan; Mumbai CST to
Panvel [Central Railway] & Churchgate to Borivali [Western
Railway] is 1.5KV DC Traction....
The section from Churchgate to Borivali [Western Railway]
will shortly be converted to 25KV AC... & after some years,
Even the other 2 sections wil b converted...

Answer / niraj jha

25kv ac supply for longer dstances which is convrted to dc through rectfier which consists of diodes as electric engins require dc motors in which rotating torque is high and dc supply fr shorter dstancs like in metro.Along with ac supply dc motor is equieped

Answer / pritesh rajore

25000 V AC in all trains except some local train in Mumbai,That AC changes to DC for 1500 V DC motor of Train & 110 V DC for lighting & Fans.

Answer / k mohan rao

25kv ac supply converted to dc supply(for dc series motor)
and 110v dc supply for lighting and fans

Even motor protection, why motor burn out ?

1 Answers   Indorama,

I have lowered a submersible pump having 100 LPM discharge & 130 Mts. Head, 15 HP rating on borewell. After lowering 108 Meters, It is taking 39 amps & blowing the fuse. Can someone put light what is the cause behind it ?

1 Answers  

What do you mean by linear and bilateral network?

20 Answers   Automation, Disa, EGCB, Infosys, OPTCL, TICT,

What is grid collapse? what is the reason for it?

0 Answers  

what is the earth resistance

4 Answers   Micron Electricals,

what is the diffrent between ups and inverter

2 Answers   ABB,

How can we select a capacitor Bank.? i need a standard formula for that.?

3 Answers   ABB, Ace Info, HAL, IKK, MahaGenco,

Is there thumb rule to calculate how many Insulators to be used for Transmission line of different volatges

3 Answers   CS,

What should be the voltage between neutral and earth of a UPS?

4 Answers  

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

0 Answers  

Under wat condition statcom operates as an inductor for the transmission line?

0 Answers  

What is the difference between generator and turbo generator - related to power gereration

1 Answers