Trend of EMC Standards for Protective Relays

Abstract

JEC-2501, a future JEC standard for protective relays' EMC environment is now under creation in conformance with related IEC's EMC standards and existing Japanese EMC standards. This paper describes history of EMC related standards for protective relays in Japan, Structure and meanings of IEC's EMC standards referred by JEC-2501, relation between EMC standards of IEC and those of Japan, and finally desirable way of creating future EMC standard in Japan.