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What is 20 kV mean?
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Why most of analog o/p devices having o/p range 4 to 20 mA and not 0 to 20 mA?

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What are the 20 forms of energy?
Answer : Energy comes in many different forms, and these are often categorized in various ways depending on how they're used or how they behave. Here are 20 different forms of energy: 1. **Mechanical Energy**: ... . These are just a few of the many forms of energy we encounter in the world around us!...

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A uniform illumination of 150 lux is to be obtained on the floor of a room measuring 15m x 15m by arranging electric lights suitably. Calculate the number of lamps and wattage of each ... lamp efficiency is 20 lumens/watt. Assume and write suitable values of constants required for this calculation.

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A 3-ph overhead line supported by 6 disc insulators, the potential across the unit is 11 KV. Assuming shunt capacitance between each Insulator and each metal link is of 1/5th of capacitance of insulator. Calculate:

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A 3 phase line of 4 km length delivers 4000 kW at a p.f of 0.8 lagging to a load the resistance and reactance per km of each conductor are 0.2 Ω and 0.5 Ω respectively if the voltage at the supply end is maintained at 11 kV. Calculate the received end voltage and efficiency of line.

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Draw the single line diagram (layout) of 33/11 kV substation.

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A three-phase transformer having a line voltage ratio of 0.4 kV/11kV is connected Star/Delta and protective transformers on the 0.4 kV side have a current ratio of 500/5. Calculate the ratio of ... on the 11 kV side. Draw a neat circuit diagram and indicate the given values at appropriate places.

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