Where double earthing is required? Is there any power specification to have double earthing?

10 Answers   Delphi,

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Which Motor used in Fan's Motor ?

3 Answers   Matsui Technologies,

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Why the transformer rating is denoted in VA rating why not in KW

7 Answers  

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

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What is Minimum permicible meggering value for following 1) LT Panels (Ph to Ph / Ph to Earth) 2) 11 KV, HT Panels (Ph to Ph / Ph to Earth) 3) 11 KV Cable 4) LT Cable

1 Answers   BFL,

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What is reason of rating of transmission line multi pal of 11 like as 11/33/66/220 ? Why not use 75 kv 23 kv line in power system ?

1 Answers   Apollo, Balco, Bhel, Vardhman,

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what is the acceptable limit value for Desolve Gas Analysis/

0 Answers  

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what type of oil is used in transformers? a)conduting b) insulating

25 Answers   ABB, LGS,

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If we have 630kva step down transformer to operation 3 phase motor 150 kva which size of cable is used? at circuit breaker to 3 phase motor or to electrical board

1 Answers  

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In a Tap changing transformer where is the tap connected , is it connected in the primary side or it is connected in secondary side

8 Answers   Indiabulls,

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we often use the word HT (high tension) line.or we say HT switch gear, whats does HT basically mean. is it different from high voltage.

2 Answers  

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why CRGO material used in transformer?

2 Answers   Honda, Yazaki,

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