Why we use shunt coil in breaker??????????

7 Answers  

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The power consumption, in case of centrifugal loads (like pump, fan, blower etc.), proportional to ____.

2 Answers   BSNL, NTPC,

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why threre are two parallel lines in transformer's symbol?

11 Answers   NTPC,

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What is double delta conection in AC Motor? And can we done the double RPM of the motor by double delta conection?

1 Answers   vguard,

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Is there such a frequency as 440v 50Hz?

1 Answers  

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wat is the need of capacitor on aceiling fan?

5 Answers  

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Which device of PlC does share load between DG sets when DG are running in perallel?

0 Answers  

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why dc series moter is not started at no load?

5 Answers   IOCL,

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how one can know the charging time, discharging time of a 12 VDC battery ? If i have a battery of 12 VDC , 4.0 AH , how long will it take to charge from a charger (power supply) of input 220 V , Output 15 V and output current of 3000 mA and how long will it take to discharge whether using or not ? How much backup will it give ?

1 Answers   ONGC,

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On which side, taps are provided in tap changing transformers and why?

2 Answers  

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what happens when a power transformer neutral earthing broken???

11 Answers   MacLellan,

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CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

0 Answers   DEWA, Growth,

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