what is the main purpose of line PT and bus PT?

11 Answers   L&T,

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How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

0 Answers  

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what is difference between earthingpits,earthing grid & earthing mess?

0 Answers   TATA,

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what is the function of garing capacitir in SF6 circuit braker?

1 Answers  

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If we have a 2000kva load,How much kvar capacitors we go to add to improve the power factor at 0.9?pls give the calculation and fully theory?

2 Answers   ABB, Unitech,

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What is the minimum load that you can keep in a 3 Phase 40 KVA Diesel Generator? Is it neccessary to load all the 3 phases? Can a phase be left without load?

2 Answers   DRDO,

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if AVR fails in alternator. what will be the effect.

13 Answers   HP,

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How can decide the MVA rating of power transformer for substation like 220/132, 132/66, 66/33kv etc or even higher kv rating of substation???? Send me the strictly technical answer that shows your strong technical aptitude.

6 Answers  

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What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?

0 Answers   HPCL,

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what is the use of piston rings in the engine used for a generator...........

0 Answers  

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Which Motor used in Fan's Motor ?

3 Answers   Matsui Technologies,

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What is Bolted fault?

0 Answers  

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