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.

Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.

0 Answers  

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why ss stablity limit is more transient stablity limit?

0 Answers   IOCL,

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how to save the power in company?

0 Answers  

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why grid frequency varry time to time?

2 Answers  

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what is a pf factor in generator.

3 Answers   CSEB,

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What is main difference between earthing and neutral grounding?

3 Answers   Jindal,

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how to calculate induction motor rating (HP) if name plate is missing from motor at site condition ?

6 Answers   ABB, apatel, Bhel, Spatel, Voltas,

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Does the ferranti effect has some impact on the electricity billing system on high voltage installations?

1 Answers   IISc,

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advantage of cu cable over al cable

4 Answers   Havells,

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why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

0 Answers  

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What are the causes of motor vibration?

3 Answers   Equate,

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In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?

0 Answers   Elektrotek,

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