Why we use Y-Y connection in power transformer (8-10 MVA, 132 kV to 11 KV)and D-y in distribution transformer (2 MVA, 11 KV to 440 Volts)?

4 Answers  

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How does a star connection and delta connection work? How does the star connection save starting current and how does it change to delta?

3 Answers  

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name of good resistance material

1 Answers  

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A 60W,250V bulb when connected to a 230V supply will it give more light or less or will be give normal light?

3 Answers   MahaGenco,

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why the carbon brushes are broken in srim while the motor runningtime

0 Answers  

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can three phase induction motor rotate with only 2 phases connected

22 Answers   Delta, Mannar Company, Suntron,

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What is the function of induction motor when low voltage is apply.

6 Answers  

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how to calculate the powerfactor in induction motor having name plate details? for example 1 h.p motor 1.86 A 415 V

6 Answers  

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what are effects of harmonics in the three phase a.c power system ?

2 Answers   AIIMS,

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What is ment by KVAR and what are the advantage&dis- advantages of KVAR

2 Answers  

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explain the functions of main isolation switches

0 Answers   Zesa,

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why our power production in multiples of 11.

2 Answers   ABB, Infosys,

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