Answer / prabhakar

We use DC voltage with DC series motor bcoz it can start
with load

Answer / bipin

it is 1-phase...25kv ac, 50Hz. actually traction substations
are there which recieve 3 phase supply and divide these
phases into sections of about 30-40 kms along the line. each
of these sections are completely electrically isolated from
each other by using dead sections.

Answer / kapil

25 kv single phase ac.converters are installed in engine because we need ac also to supply auxiluries like blowers etc.

How to calculate Battery back up time for a 400 AH Battery bank having a load of 20 Amps and charging time required to fully charge this battery bank?

2 Answers  

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what is difference between sub-station and switch yard.

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difference b/w bus bar and tie line?if possible explain with eg:

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when elecromagnatic waves are propogated in a wave guide?

0 Answers  

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please explain me about traction application?

2 Answers  

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I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

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what is motor?

2 Answers   UIU,

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what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

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why ten delta testing is carried out on power transformer

0 Answers  

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what is the difference between synchronous generator & asynchronous generator

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I AM COMPLETED DIPLOMA IN E.E.E. AS WELL AS B.TECH IN ANDHARPRADESH.. HOW I THE Certificate of competency as Electrical Supervisor.

1 Answers  

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