I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me

0 Answers   SECL,

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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 . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

0 Answers  

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What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

0 Answers   L&T,

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how to define tell me about self

0 Answers   Bhel,

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The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason

0 Answers  

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what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?

13 Answers   Apollo, OPS,

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Can someone tell me how to calculate the size of a power cable? What are the factors involved in cable sizing?

5 Answers  

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What are the special protection given for high capacity Motor, more then 10mw

2 Answers  

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if i have one capacitor=80 micro farad which correct the unity power factor,but i want to make capacitor bank who correct the power factor.so,how to split this capacitance value?

2 Answers  

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Two alternators say 1 & 2 are poised to parallel operation. But at the time of paralleing alternator 2 gets out of the system by tripping Earth fault relay. Please send me reply why this is happening?

2 Answers  

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what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?

0 Answers  

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Why MS rod or flat are used in stead of GI rod or flat in switchyard earth mat ?

2 Answers  

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