Any one Give me formula for to increse the power factor, 0.8 to 0.95, How much the KVAr Required

9 Answers   Emerson, Rajshree Sugars, Siemens,

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What is the difference b/w earthing & grounding?

6 Answers  

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

2 Answers  

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what is the effect of leading power factor

3 Answers   Aurobindo, R L Steels and Energy,

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why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

1 Answers  

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why transformers not work at d.c.-

3 Answers  

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What is a soft start?

1 Answers   Focus,

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CAn a TJM 10 relay measure over current ?

2 Answers  

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In the magnetic fluxes, what is the role of armature reaction?

0 Answers  

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What is Ton Capacity of Air Conditioner?

1 Answers   TATA,

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Describe how a salient pole / projecting pole rotor differs from a cylindrical rotor and state the application of each rotor respectively

3 Answers  

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WHAT IS MEANT BY DERATING OF THYRISTOR?

0 Answers   TATA, Trane,

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