what is VFD and where is use of it

5 Answers  

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What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

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types of central Air conditioner plant?

0 Answers  

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What is difference between ball screw and lead screw.

2 Answers  

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how do i calculate voltage drop-if length is 1000 meter,amps is 160a

1 Answers  

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what will happen if one of the phases from a 3-phase motor is disconnected?? stop/run at 2/3rd speed or run at same speed????

3 Answers  

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why we use perllel conection system in the wiring?

4 Answers   Airtel,

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Why we did not feel electric shock in electric train?

1 Answers   NTPC,

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In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?

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I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

0 Answers  

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simple way to find busbar sizes??

1 Answers   SPAC,

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what is the diff. between power transformer & distribution transformer.....

5 Answers  

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