The instalation of pumps towed by asynchronous motors in middle and small size pumping stations causes great reactive-food consumption to the electric power pool with lower power factors. In this article,based on analysis of data collected from the pumping stations in Bac n Gorge irrigation District,the author put forward the ideal of compensating reactive--load consumption by installing some synchronous motors in the same pumping station. And make a further calculation on the installed capacity. Draw a ...