(Reactive power optimization technology of distribution network refers to rationally configuring reactive power compensation equipment, rationally arranging office methods, optimizing reactive power flow distribution, improving reactive power management level, and then improving urban power grid efficiency transmission and voltage quality, reducing reactive power at the receiving end. Efficiency loss, advance efficiency factor, reduce network loss, advance the utilization rate of generator and power supply equipment, advance the office level of reactive power compensation equipment. Reactive power compensation is generally based on the principle of in-situ balance by zoning and stratification.)