1. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay

3 Answers   ABB,

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How do we calculate transformer oil in liter from the rating of the transformer.

0 Answers   BARC,

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why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

0 Answers  

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Explain what is clipper and clamper circuits?

0 Answers  

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why can tv operate at low voltage??

2 Answers  

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How to calculate the average power factor in 3 phase unbalanced system

5 Answers   Bhel, MacLellan,

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what effect will 10 milliampere current cause to human body

1 Answers   NPCIL,

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what type of cables exsisting in the world and how many types

9 Answers   Alstom,

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if i conncet ct with ct ratio of 600/5 to an energy meter having ct ratio of 100/5, the reading show by the meter will correct, if wrong is there any method to calculate correct value with shown value, if yes please state it.....

2 Answers  

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What do you mean by eddy current loss?

1 Answers  

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Why does the DC voltage needed is less than AC needed to produce corona?

2 Answers   TATA,

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What is the main application of DUMMY COIL in machines?

3 Answers   IES,

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