The article considers various methods of suppressing electromagnetic disturbances encountered in the electric power system. Detailed descriptions of methods of suppression, as well as classification of electromagnetic interference on the basis of the source of their occurrence are given. Illustrative diagrams of the 106 Вестник Инновационного Евразийского университета. 2017. № 1 ISSN 1729-536X three methods are shown. Based on the analysis, recommendations were made on improving the noise-proof feature of power equipment.