Answer / k.mareeswari

Electric train uses only one conductor.It doesn,t need any
separate neutral line because rail itself acts as neutral
path or return path.
And this runs in single phase.

Answer / virendra

Addition to the above Electrical train motor is DC series
moter & runs at 25 kv , it runs on single phase & the
return path will be trhough the track which is again earth
at several places.

Answer / pavan sharma

additional in above we use negative booster to control
effect of voltage drop on rail track

minimu size and length of gi earth pipe

2 Answers  

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On which side, taps are provided in tap changing transformers and why?

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1. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.

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How many battery required for an 3kva online ups with 3 hrs back up with usage of 3 fans,3tube lights

1 Answers  

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defination of lines

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give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

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What is the basic difference between synchronous machine and induction machiine?

1 Answers  

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

0 Answers  

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Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

0 Answers   AVT Natural Products, EMC,

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Pl.brief me any electrical major fault you have rectified.

0 Answers  

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In electrical cables what is U and U0 refers?

11 Answers  

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What is GND Transformer?

2 Answers  

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