Answer / ahmadnahla

if you mean in the overhead power lines : 

it will take much more cost to use insulated cables

Answer / wukwai

It is unnecessary to insulate the cables because they are suspended in air and are supported by ceramic insulators at the supporting poles or structures.

what is difference between vaccum circuit breaker and air circuit breaker?

2 Answers  

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should Dy11 and Dy1 group can be operated in parallel??????

1 Answers  

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what is the formula to calculate kva genset required for a given load in kw.

3 Answers  

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When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

0 Answers  

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Wheather there exist any dc transformer

6 Answers  

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What is the difference between LT CT & HT CT?Can we use indoor type transformer as an outdoor type or vice versa?

2 Answers   Bhel,

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which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

0 Answers   GE,

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why the neutral point of star connnection oscillates?

3 Answers   Avalon,

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Explain Clearly Pahase and Neutral?

7 Answers  

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WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv

4 Answers   BCET, NTPC,

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in ONAN type transformer winding temperature is lower than oil temperature at evening time but morning winding temp is higher than oil temp what is the reason?

2 Answers   Areva,

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DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain

1 Answers  

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