why transmission is only 3 phase and not 2 or 4 or poly phases

0 Answers   Infosys,

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Define over current & earth fault ?how its functioning ?

1 Answers  

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What value(high/low) of diversity factor is desired in power system and why? How such value is achieved?

1 Answers  

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What will happen if i replace a inductive proximity switch with photo sensor in a machine?

0 Answers   Hitachi,

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why the armature coil in dc machine is round?? swagat k.

1 Answers  

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why is the core of the underground cable is spiral in shape instead of straight?

8 Answers   Mecon,

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can anybody find out the result. I am lil bit confused about my equation.

1 Answers   Student,

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Petroleum jelly is applied to the terminals of the lead acid battery is to prevent?

2 Answers   KSEB,

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if acapacitor connected to power supply will it cosume power& will it going to get recorded in energy meter

2 Answers  

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how to commissioning the genset with amf panel?

0 Answers   Cummins,

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what may the reason for vector shift in a generator?

0 Answers  

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what is the maximum load sutiable from earth to phase and what is the max voltage earth to phase suitable

1 Answers  

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