trains run on ac or dc??
if ac or dc what are the advantages and disadvantages?????
- 4 Answers
- 15631 Views
- ABB, Infosys, I also Faced
- E-Mail Answers
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
Why we need biasing for transistor, fet and mosfet?
can we calculate the voltage level for microwave energy which is using for our mobile communication?
What is the turn-off time for converter grade scrs and inverter grade scrs?
What is the difference between E1T1 Card & RRI & FIU.
Name the frequency bands are used in satellite communication?
Explain why does sidebands vl come in case of analog modulation?
What are laser diodes?
What is difference between fixed-bias circuit & self-bias circuit?
In order to find out stack fault of a three input nand gate how many necessary input vectors are needed ?
what is bts
Explain resistance?
Explain why we need biasing for transistor, fet and mosfet?
Explain what are the applications of an inverting amplifier?
Define cmrr of an opamp?
What are the properties of FFT? What happens when you pass a signal of 1000Hz through an FFT?????
