what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

0 Answers   L&T,

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why we use REF and Differential Protection in one transformers?my doubt is both protections are operated in internal fault only.why we want to use 2 protections?please clarify.

7 Answers  

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Whats the purpose of neutral earthing?

5 Answers   Electrical, Hindalco, TCS,

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Write down the brushes of a de machine.

0 Answers  

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corona happens more in ac or dc?

5 Answers   MAHINDRA,

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Can anyone tell me how a 12v battery is transformed to 20,000v at the spark plug

6 Answers  

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why dc source used for HV breakers and Relays operation?

2 Answers   Cethar,

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How LT megger works ?

0 Answers  

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What are all the conditions to protect generator & turbine in thermal power plant?

1 Answers   Power Grid,

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In zero voltage we can pass supply to our body means we cant get shock its true ? how we can do it ?

4 Answers  

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If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

4 Answers  

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how to calulate bearing number of any motor ?

0 Answers   Transfield,

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