Why we use three phase world wide why not four phase or five phase being used?

8 Answers  

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Why P.f. of the system decreases when it is connectect across induction motor? & how to maintain the p.f. of system to unity.?

6 Answers   Reliance,

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The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

0 Answers  

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what is auto transformer?

4 Answers  

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pleasee tell me the risks and hazards of a Cable Jointer job? Thank you.

1 Answers  

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What meant by XLPE cable

3 Answers  

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WHY ARMAD USE IN CABLE

4 Answers  

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In batteries after completion of charging which colour gas is emitted from it?

2 Answers   Essar,

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What do you mean by the zone of protection?

0 Answers  

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Can we use 11kv Trivector Metre or Energy metre instead 33kv Metre at 33kv Over Head Line metering purpose?

5 Answers   Bhel,

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What is the automatic voltage regulator with servomotor?

0 Answers   Simbhaoli Sugars,

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IN a transformer during power supply how the LV and HV bushing works??

3 Answers   CSEB,

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