Interested to Buy Any Domain ? << Click Here >> for more details...
explain me how a power factor is improved by adding a
capacitor?what capacitor do to improve it?in simple words
and in detail?thx
- 7 Answers
- 12361 Views
- I also Faced
- E-Mail Answers
Answer Posted / amit upadhyay dscl
because
cos$ = R/Z ........... ($=phai),
where R=resistance & Z=impedance
total impedance without capacitor,
Z=root square of(R square + XL square)
total impedance with capacitor,
Z=root square of{R square + (XL-XC) square}
due to decrease of (XL-XC) total impedance with capacitor
decreases, and due to this, power factor increases. because
from equation first,
cos$ perportional to 1/Z
| Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
How does cost of generation from hydropower plant compare with other sources of electricity?
How to calculate capacitor bank value to maintain unity power factor with some suitable example?
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?
what are symmetrical and non symmetrical components in electrical installation.
Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?
how we can calculate power factor in single phase & three phase ?thank u
If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.
what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?
if a.c supply is given to the motor,, what happen?
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?
What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?
explain the functions of main isolation switches
What is hipot test procedure?
Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?
