When i went to a interview the interviewer ask me a
question for that i cant able to answer him if anyone knows
answer me
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?
Answer Posted / arvind
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 |
Post New Answer View All Answers
I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
Type of motor stater detail and working detail
What is the difference between Delta & Wye windings?
what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?
why various test are performed on electrical panels & power cables before commissioning on site & what are these test???
Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???
how can get electrical c licence.now i am working in spining mill , transformer capacity 2750KVA. SANCTION DEMAND 2250KVA. PLEASE ADVISE ME . MY CONTACT NO 09944226823
How to test the Secure Elite 440 Multi function meter working condition.
a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------
please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com
How do I calculate/select Droop CT ratio for various capacity of generators?
we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?
how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?
derive DC RMS value for half wave rectifier?