I am from Myanmar, one of LDCs in the world. Although our country is over 50 times larger than singapore, our power consumption is only 1/10 times of Singapore. I mean Myanmar power system is not big. Our country has no penalty for power factor lagging. But now a day, we have problems concerning with power factor improvement. And also have problems in voltage and frequency control. Many of substations in our country did not have capacitor banks or shunt reactor before 2009. I would like to know that is there any relation between PFC and voltage and frequency control? Please anybody answer.