Answer / dinesh

% impedance indicate the potential to decrease the fault
level in system by that eqipment. % impedance values msotly
occur in between 2 to 20 %

why dc exicitaion used in ac motor....?

2 Answers  

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What will be the effect if I use inverter as UPS mood?

0 Answers  

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Why mostly conductor made by 7 nos wire?

2 Answers  

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what is a synchronizing lamp ?

0 Answers  

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Why  we are always  only used 11 kv.  , 22 kv ,33kv      in transmission line? Why not use 25,  55 ,65 kv ?

3 Answers   Khidmah LLC, Precision Camshafts Limited,

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two phases with neutral supply can be taken in 3C X 10 sq.mm cable .

0 Answers   SPCL,

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How do we measure earth fault current in Generator Transformer(20/420kv),Station Transformer(20/11 kv) and Unit Transformers(20/11kv) for our plant system, since these don't have any Neutral earth Fault relay connected to their Neutral Earth? But for Unit Service transformers(11/.433 Kv) we have an Earth Fault Relay connected to its neutral earth.Why is such so?

1 Answers   NTPC,

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why we do 2 types of earthing on tranformer ie:body earthing & nutral earthing , what is function. i am going to instal a 5oo kva tranformer & 380 kva DG set what should the earthing value

8 Answers   Altrion Technologies,

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plz tel me syllabus and exam date 4 jr executive engg (electrical)

0 Answers   AAI Airports Authority Of India,

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how many maximum nos of add on contact we shd provide on 4 no contactor

1 Answers   Accenture,

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Simultaneous trip of incoming and outgoing breakers of 400kv/220kv trnasformer. What are the probable causes?

2 Answers  

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when we catch any one of the phases with our both hands in air(without touching ground),our body acts as a conductor.is it correct.please clarrify it.

4 Answers  

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