what is timing for mccb 800A tripping?

1 Answers   L&T,

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suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

2 Answers   ABB,

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What is principal to reduce earth leakage current with isolation transformer? When isolation transformer is installed in input stage of system, earth leakage current is reduced. the reason is why the leakage current of 2nd stage of isolation transformer does not affect the 1st stage's leakage current. I would like to know the reason. As you know, earth leakage current is a kind of AC. So, How to reduce earth leakage current in case that isolation transformer is used?

2 Answers  

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In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

0 Answers   ABB,

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what is meant by brushed alternator & its working principle ?

0 Answers  

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how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?

0 Answers  

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why florescent light was flickering?

4 Answers  

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why contactor not provided between output of VFD and motor?

6 Answers   Siemens,

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Whats the use of earth pits? and it will function? whats the natural earth value? How to improve ur earth resistance?

3 Answers   Anwar Ispat,

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I have 380.KVA DG set how to Calculate the units from DG.

2 Answers   Ozone Pharma, Sperry Plast Limited, Sterling,

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What are the material used for inductance coil?

0 Answers  

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How halogen & merquery lamp works.

0 Answers  

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