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.

1. how much normal earth resistance in earth pits(neutral and body earth) and transformer neutral and body earth & panel earth.

12 Answers   HP, Malladi Drugs and Pharmaceuticals, Pearl Engineering, PL,

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if single phase is 230 v three phase is 440 v then what about two phase?and why is it so?

2 Answers   Eicher,

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In a Capacitor the electric charge is stored in:

2 Answers   TELK Transformers And Electricals Kerala Limited,

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Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..

0 Answers   Siemens,

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what are symmetrical and non symmetrical components in electrical installation.

0 Answers  

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what is the function of LBB relay

9 Answers  

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how did the differential relay work to protect the power transformer

4 Answers  

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What is the reason that the humming sound is coming from the induction furnace panel?

0 Answers   SKS Microfinance,

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I have 725KVA DG set how to Calculate the Ratio of KWH? Whatb is the Formila

7 Answers   HCL,

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Difference between control junction box (cjb) and power junction box(pjb)?

0 Answers  

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What is the suitable rating of MCB for 1.5 Ton A.C and why? 1Ton= how many amperes?

5 Answers   BARC,

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plz tell me about detailof induction motor Slip

2 Answers  

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