Inadequate supply of reactive power or its irrational distribution is the main reason that affects the voltage quality.Assurance of reactive power compensation and balancing is the premise to the voltage quality improvement.Reactive sub-layer and local balance are the main principles and important measures to reduce power loss.At present

most of rural grid exist the problem of reactive power allocation.This paper points out the problems in the fields of reactive power allocation design and equipment operation of rural power grid based on the investigation and analysis of the reactive power compensation of rural grid 35 kV substation in Yutian

proposes a series of improvement with the aim of improving reactive power compensation of rural grid substation and the power factor.