What are the methods used to improve powerfactor ?

6 Answers  

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if a 2 ohm resistor,2 ohm capacitor and a 2 ohm inductor is connected parallely to 12v source.Then what is the value of current in each branch.Is current flows in each branch at the same time?If not so then provide the proper sequence

1 Answers   Tata Steel Limited,

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Hi, I'm going to attend BHEL interview for exexutive trainee (ET ) on 22nd DEC . Till now if anyone attended the interview pls help me out regarding the interview. I'm an electrical engineer

3 Answers   Bhel,

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A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

0 Answers  

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for a machine R=130 KVA Y=132 KVA B=144 KVA Then what will be the total kva

3 Answers   ABB,

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pls define kvarh

2 Answers  

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What is balance beam relay ?

2 Answers   Roman,

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To determine the Healthiness of Insulation we will be performing Dielectric tests i.e Insulation Resistance test, Partial Discharge test,Switching Impulse, Lightning impulse, Tan Delta test ...etc why we required to perform this many test, why cant we do only one test. for Transformer, CT's

1 Answers  

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What is SF6 Circuit Breaker?

2 Answers   Amdocs,

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Keywords: Die, Card, Coin, B/N 2 To 12

0 Answers   TCS,

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why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

0 Answers  

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What transistor level design tools are you proficient with? What types of designs were they used on?

1 Answers   Intel, Jindal,

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