How to Measure Required Capacitor Value from KVAR ? Power Factor Correction

Status
Not open for further replies.

asking

Full Member level 5
Joined
Sep 21, 2010
Messages
279
Helped
6
Reputation
12
Reaction score
6
Trophy points
1,298
Visit site
Activity points
3,377
Hello,

I am trying to Correct the Power Factor of my House AC Line System. If i find the KVAR of my AC system, its coming around 850KVAR. KVAR = how many Farads ?

Please can anyone help me in detail...

Thanks in advance...plz do needful..
 

850 kVAr might be the reactive power of an industry plant or a residential quarter. Are you sure?
 

Sorry,

Its not KVAR its VAR i think. i have maximum load of 2000 Watts @ 230VAC and power factor 0.6. So i need Capacitors to correct the power factor. Please gimme some idea how much Farad Capacitors should i use ?
 

Formula is C=Q/(2*pi*f*U^2), so for Q=850VAr, f=60Hz and U=120V, result C=156microF. Need special capacitor(s) able to support minim 2x voltage, coresponding current and able to disipate developed internal heat.
 

Respectively 120 µF for 230 VAC. But why do you want to compensate reactive power? A private home isn't charged for it.
 

I heard that all our Home energy meter's are charged on AMP's which we consumed they don't monitor the PF. in india. So......
 

Most places in the world do not take PF into account when charging residential customers. Industrial is another matter.
 

But if Power Factor is not proper , AC device running will require more Wattage to Run. And Hence Finally more Bill to be paid.
 

But if Power Factor is not proper , AC device running will require more Wattage to Run. And Hence Finally more Bill to be paid.
No. There are many previous edaboard threads explaining the matter.
 

Attachments

  • pf.gif
    13.3 KB · Views: 83
Last edited:
Status
Not open for further replies.

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…