Research On Electromagnetic Interference Of Secondary Equipments In Substations

With the development of power system and the increase of voltage level, electromagnetic interference has becoming a severe problem in substations.In this paper, automatic device in a 220kV substation frequently crashes when the disconnector operating,base on this problem,a lot of analysis had been done,And by measuring the interference voltage,find the key issue that Cause device failure.Simulated in the laboratory situation,Research on solution to the problem,Proposed the method that Winding copper mesh on the non-shielded cable before before entering the cabinet. Through the experimental study of the relationship of the length of the Copper mesh with the anti-jamming,And find a suitable winding length.Through the implementation of Scene,Achieved satisfactory results,successfully solved the problem,proved method is feasible further.