thanks bro ,,nice ,,,,,,,,,,,,,,,PF in simple words ,,,,,,is like BP (BLOOD PRE) in our body ,,,,,,,,,,,we maintain our BP ,,,if it increase or decrease ,,,its not good for us ,,,samilly ,,,an increaced or decreased PF is not good for power company and our bills ,,,
Nicely explained. I have a doubt which is related to power factor when two generator are running in parallel suddenly found both gen current is showing different but kw is same, please explain what is the reason and how it can be rectified
hi , can you define what is reactive power ? i can understand that the power which we consume or utilize is real power of course we pay electricity bill for real power (kwh) .
Sir its a nice explanation,,, Sir, just imagine we need 5o kvar for power factor correction to .95pf. if we placed 100kvar capacitor insted of 50kvar what will happn??
there is a digestion problem.. how can we explain if there we plAced 100kvar capacitor insted of 50kvar,,, power factor nly keep near one... if it happen why should we need selection criteria ?? just we need a random selection only... and how the exess kvar affect on the system.
you have to calculate the kVAr requirement based upon your present and desired power factor. You may refer BEE - CEA book on Electrical system, it has the calculations and table (beeindia.gov.in/sites/default/files/3Ch1.pdf).
Mr RAvi i have been ask to determine the reason of add capacitor to a 5 bus bar with two generators power system? Would your explanation be close to it?
Have reason to believe the power company uses a power factor of 80% when selecting the SIZE of the step down transformer to serve your and your neighbors house. Obviously they can not measure each and every residents, so this is a compromise. Also factored (ha ha) into the bill that you are charged.
+badri koli yes! by connecting capacitor banks, we supply reactive power (kVAr) needed by the system and hence the kVA from the grid is utilized towards kW. This improves the PF close to unity; (kVA^2)=(kW^2)+(kVAr^2). Hope I have answered your query.
Sir , i have a problem in maintaining the pf in my company . my total load is 23 hp , i have added 20 kvar capacitor of 8,12. Last month my pf was .610 , after adding there is minimal improvement in a day if i run my company it increases by 3 and by night it falls 5 points . helpme i paid a penalty of 18000 last bimonthly bill.40 days since adding capacitor now my reading stands . 704
