Yasin said:
by the way, my country is Turkey :)
Now a days in India, in Mumbai distribution APFC's are used to maintain P.F , in RSS depending upon the requirement capacitor banks are installed to improve the pf at transmission level. But due to some industries the power factor reduces which increases line current and some drop in voltage, depending upon the requirement they are charged and discharged. HT consumer's are penalized for the p.f if it goes below 0.98 and a compensation is given if thy maintain p.f more than 0.99.