why we use 25 kv in railway .not 11kv, or 33 kv

2 Answers   ISRO,

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How do you classify the different types of torques?

2 Answers  

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What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

0 Answers   Welspun,

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What is the actual meaning between the energy conservation and energy saving ?

3 Answers  

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What is FM 200?

2 Answers   Dalkia,

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what diff. between earth nd neutral?

3 Answers   NTPC,

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what are the safety measures of induction motor?

0 Answers  

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In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

0 Answers  

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without any excitation we can strt any dc or ac moter?

6 Answers   Bhel,

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The windings of a transformer are divided into several coils, because?

0 Answers  

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What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?

0 Answers   XX,

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What is conventional thermal current (Ith)

0 Answers   Alstom, HPL,

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