What is meant by derating factor?

0 Answers  

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why the pressure coil is not present in the three phase wattmeter?

1 Answers  

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A 4-Pole D.C. Generator has a speed of 1500r.p.m. Then what will be the frequency of D.C. Generator ?

9 Answers   IBM,

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What is floating earthing?

2 Answers   Equate,

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what will happen when ac is applied resistor,inductor,capcitor?

1 Answers  

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A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.

0 Answers  

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What is the AVR in DG & its functios

2 Answers   Godrej,

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what does a k rating in a transformer means?

0 Answers  

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why transformer rated in KVA not in KW ? we know that W= v*i

6 Answers  

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What is Scott connection? In which device it is used?

4 Answers  

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Why glands not provided for XLPE cables

1 Answers   Saint Gobain,

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what is XLPE type cable

8 Answers   Areva,

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