Answer / guest

25kv AC line normally used, current collector pentograph is
used to collect current then this power transform to a lower
level(voltage) by transformer. now this power is converted to
DC and used to drive DC motors. these DC Motors drive the
train.
25 KV AC supply collected from the Grid and transmitted in the
railway grid along the tracks boosters are arranged at
different section to maintain voltage level.

What is the unit of attenuation?

0 Answers  

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In layman terms, what is the difference of Dielectric strength and dielectric constant when speaking of an insulating oil

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which starter is used for synchronous motor

18 Answers   APTransco, IBM,

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3 Answers   Bhel,

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why neutral is neccessary?

7 Answers  

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What is the use of doing meggering for a cable

2 Answers  

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can we increase our frequency rate in INDIA?

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will the power consumption remains the same when speed of the fan cnanges??if so y??

2 Answers  

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how to calculate Amp, 2 different Amp of batteries? Example: No. of Batteries = 2 Battery voltage = 12V 1st Battery rating = 17AH 2nd battery rating = 30AH between parallel connection then output volt 12v Amp?

2 Answers   Bhel, LG Soft,

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What is the kva?

2 Answers   Makino Auto, SAL Steel Power, Sapphire Group,

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we convert 66kv to 33 kv to 11kv to 440v. why can't we directly convert 33kv to 440 ?

9 Answers   EMC, Jakson, L&T,

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