Answer / hussain

5KV is sufficient to megger 6.6KV cable, if you want to do
Hi-Pot test use: test KV= 2* rated KV +1

Answer / abhishek

for meggerirng it,s use 1.5times volt in HT cable.in 6.6kv cable we use 10kv dc.

plz tell me in detail about c.t. and p.t. ?

3 Answers   Reliance, SCL,

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what is there inside an inverter and how it works?

0 Answers  

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as we know that N=120f/P speed of an im can be controled only through changing no if poles, can we control by changing the frequncy????

7 Answers   JSW,

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what is the contact resistance of sf6 circuit breaker??

2 Answers  

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what are the particle used along with silica gel in transformer breether,explain their functions.

4 Answers   ME, Oil India,

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how can we solve the RMS value of alternative Qnty is .707 , explain detail .

2 Answers  

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Why NGR is provided in sub station?

4 Answers   MMS,

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why we are useing capciter in EB meter?

2 Answers  

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What is load boxes ?

0 Answers   AMIE, PEPL,

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what is the difference between ac and dc hipo test of cable?

2 Answers  

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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What is the difference between Welding Transformer and Normal Transformer?.

2 Answers   DAE,

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