single phase for 230 then why three phase are 440 volt

4 Answers   ACIL,

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At what speed an electric car can run with 2 HP motor of weighing 400 kg?

0 Answers  

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What does dny11 stand for?

5 Answers   Cenored,

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A 60w bulb & a room heater are connected in series.if 60 w bulb is replaced by 100w then what will be the effect on heater out & why?

6 Answers  

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What is the difference between amorphous core transformer and CRGO core transformer?.

0 Answers   DAE,

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how to control dc motor?

0 Answers  

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Why we use stones in switchyard?

3 Answers   Havells, L&T,

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Is it possible that Generator trip but Turbine not trip.Give explanation.

1 Answers   Essar,

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Clearly Define Active,Reactive,Apparant power.Which applications used which power above metioned power?

9 Answers   Summit Power,

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how to calculate generator capacity?(kva)

2 Answers   SMEC,

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why ct is connected at bushing of transformer ??????????

3 Answers  

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HOW THE AC GENARATOR CAN GENARATE REACTIVE POWER,HOW CAN WE CONTROL IT.AND OTHER SOURSES OF REACTIVE POWER GENARATIONS ARE WHAT.

3 Answers  

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