why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  

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what is high tension ? specify the range?

3 Answers  

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What is the purpose of SOTF being used inspite of distance Protection given?

7 Answers   Alstom,

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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 . please reply..............

9 Answers   NTPC,

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What will happen if a dc source is given to a tubelight. Will it work or wont it work....

0 Answers  

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can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

0 Answers   DEWA,

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What is the working principle of VFD

3 Answers   HCL,

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Graphs of measuring power and speed on dc motor

0 Answers  

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What does the term supermesh means?

0 Answers  

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DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

0 Answers   Essar, MahaGenco,

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How time response of the system is divided?

0 Answers  

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difference between substation & grid substation?

2 Answers   GMR,

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