For investigating relations of the fault of shunt reactive power compensator at 220kV substation with background harmonics

it is found through computer simulation on the basis of withstanding level of operating condition of China National Capacitor Standard in this paper

consideration of additional effect of the background harmonics and combination of actual parameters of the system

that the higher harmonics of 3th

4th

5th order on 35 kV busbar is one of the key incentives. On the basis of which

several kinds of possible solutions are analyzed. The mitigating measures are also discussed additionally. It is shown throughout analysis that parameters configuration of shunt reactive power compensation device must be determined in the combination with harmonic feature of the connected system background and its system parameters

and parameters of series reactor is selected in accordance with the background harmonics.