How the electric train gets the supply of electricity? What is the return path of the current?

7 Answers   NTPC,

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what is the difference between ac and dc?which one is more efficient?and what r their advantages

1 Answers  

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1.What is the maximum transmission voltage in india & where it is located? 2.more information about indian power scenario.

4 Answers  

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what is idmt relay

1 Answers  

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in india why we not use frequency above 50 hz for distrubuting power ?

1 Answers  

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in magnetic field we send current to generate flux,why not voltage?

2 Answers  

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Can RCD's used to protect the VVVF drive if not why.

0 Answers  

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hi... Can anybody give me description of type-2 coordination, IP protection, NEMA standards ? Thanks..

2 Answers   KSEB,

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why we use core type and shell type transformers?

2 Answers  

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Define working of prim mover governer in alternator?

1 Answers  

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If we says that current is flow only when there is closed path & neutral work as a return path for the same. Then how circuit is closed in three phase as no neutral available ??

1 Answers   Nimbus Harbor Facilities Management,

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Merits & Demarits of Oil circuit & Air circuit breakers ?

0 Answers   Genco,

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