Follow Our FB Page << CircleMedia.in >> for Daily Laughter. We Post Funny, Viral, Comedy Videos, Memes, Vines...

When i went to a interview the interviewer ask me a
question for that i cant able to answer him if anyone knows
How will you design a capacitor bank for a plant? if my p.f
is 0.6 i have to improve it to 0.9 or 1 what kind of steps i
have to do? and is there any formula for calculating this?

Answers were Sorted based on User's Feedback

When i went to a interview the interviewer ask me a question for that i cant able to answer him if..

yes there is an answer fir that, the answer is

KVAR=KW(inv(tan(PF2)-(inv(tan(PF1)))
where tana is desired power factor and tanb is your current
pf.
now to calaulate your a and b parameter we use this formula
power factor =cosa and power factor=cosb
i.e., inv(cos)=power factor
put this in above equation uyou will get your KVAR RATING
but you should the KW of the load.

 Is This Answer Correct ? 6 Yes 2 No

When i went to a interview the interviewer ask me a question for that i cant able to answer him if..

this is also calculated from power triangle. i.e.,
KVAR=KW/COS(@).

 Is This Answer Correct ? 1 Yes 1 No

More Electrical Engineering Interview Questions

what is b checks and m checks in diesel generator maintenance?

Is it reuired to use house service barcket for 31/2 core 300 Sq.mm cable,if the distance between pole & shop is around 2 mtrs only or can I hang the cable with GI support in air? upto what size of cable GI serrvice btacket is necessary?

what is working of Master trip relay ?

What is power factor? How to improve Power factor? draw a circuit diagram showing the connection of power factor improvement equipment to the electrical instillation.

What will happen when we will connect lamp in between phase and earth.

What are the minimum acceptable insulation resistances of insulation of underground cable suitable for 0.440kV,11kV, 33kV and 66kV?

Why is the electric shock from the DC supply is more dangerous than the shock from AC supply.

for opening electrical shop, tips needed.

What is the role of ESP(Electro Static Precipitator)in steam power plants? Where it is located? How it works?

what is isochronous mod? what is voltage drop mode and p.f mode?

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

What is majour reason of Electrical Arcing ?

Categories
• Civil Engineering (5076)
• Mechanical Engineering (4445)
• Electrical Engineering (16606)
• Electronics Communications (3915)
• Chemical Engineering (1092)
• Aeronautical Engineering (214)
• Bio Engineering (96)
• Metallurgy (361)
• Industrial Engineering (258)
• Instrumentation (2992)
• Automobile Engineering (332)
• Mechatronics Engineering (97)
• Marine Engineering (123)
• Power Plant Engineering (172)
• Textile Engineering (575)
• Production Engineering (0)
• Satellite Systems Engineering (106)
• Engineering AllOther (1378)