what is the difference b/c choke and ballast?

1 Answers  

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what is high pot test on 11kv switchgear and how to apply high voltage on panel what is spheare gap and how to determine its celeberation.

1 Answers  

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

0 Answers  

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What is I/P converter?

1 Answers   RRDonnelley,

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Why HT voltages are expressed in 11KV,22KV,33KV and so on? (ie in times of 11)

3 Answers   Bhel, Park Hotel,

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types of motors suitable for escalators with reason

2 Answers  

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What will happen if the d.c. Shunt motor opened accidentally running on no-load has its shunt field winding?

0 Answers  

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what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.

0 Answers   HEC,

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How can you calculate in detail the VA burden of current transformer used for Restricted earth fault protection? Please understand that the CT required here is Class PX or X. Also please show the calculations for knee point vtg, stabilizing resistor, magnetising current.

3 Answers  

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what is Wave Trap? And its Function ? Detail? Where it is Used?

7 Answers  

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why we are using auto transformer in sub station mostly???

2 Answers  

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How can we measure MVAR of a 3 phase transformer.....???

1 Answers   JLL, UPPCL,

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