Answer / sujit nandi

ya if we know the resistance and impedence of load...as we know cos phi equals to R/ z...

what is derating?, why it is neccesary, it is same for all means for drives, motors,and cables.

1 Answers  

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How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 Answers  

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what is form factor.and rms value..

1 Answers   IIM, Torrent Power,

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What is DC series motor?

0 Answers   Ericsson,

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Why is the earth pin in a 3-pin plug the longest and the thickest?

10 Answers   IBM,

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WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

0 Answers  

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Why an ac systems are preferred over dc systems?

0 Answers  

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which type of material is used for making motor encloser

3 Answers  

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What do you meant by soft start?

1 Answers  

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what is mean by current? and voltage?

4 Answers  

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Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason

0 Answers  

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dear all, can any body explain that how to select an induction motor for a specific mechanical load(inertia). is there any formula or calculation then please give me. i shell be very thankful to all of you. Thank,s and Rgard,s.

1 Answers  

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