Answer / msbheda

please help..........

Answer / latesh patel

2 Runs of 300 Sq.mm. cable will be sufficient for the 22KV
side incoming and the same will at outgoin side
irrespective of load connectd till the voltage level
changes to till lower 11 kv or 415 means txr should come in
picture...

Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............

9 Answers   NTPC,

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why induction motor's p.f 0.8

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for what purpose the star point is done in ct

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how can we connect a distance relay to CT core that is for backup protection or metering?

1 Answers  

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what is HI POT test

4 Answers   Suzlon,

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can we use generator(a.c) as a motor.if so how if not why.

2 Answers  

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how is classified voltage level in generation,transmission & distribution system?,

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how you configure motorvision relay (L&T make)from DCS

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

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what is mean by NTPC?,why didn't electric shock in train?

7 Answers  

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