tell me about vfd

8 Answers  

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why ohms law does not obey semi-conducters?

2 Answers  

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what r the checklist while installing a 380 kva DG set

0 Answers   Pepsi,

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What is the difference between IGBT and TRIAC?

3 Answers  

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

0 Answers  

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WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

0 Answers  

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Explain about 3 phase motor fault current calculation with examples?

0 Answers   QTC,

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what are the shades for mimic diagram i.e for 3.3kv,6.6kv,11kv,22kv and 33kv? which is the IS for mimic diagram?

2 Answers  

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my field of interest is T&D. plz tell something about that.

15 Answers   TCS,

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High speed earth switch operation with diagram

0 Answers   KSEB, L&T, Sanden Vikas, Siemens,

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I have 3 1000 kva single phase transformers and I wish to replace them with one three phase transformer. What is he kva rating of the new three phase, is it 1000 kva also or 3000 kva.

5 Answers   Central Moloney,

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Explain the purpose of inductor in an electric circuit?

0 Answers  

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