This part of IEC 60255 specifies common rules and requirements applicable to measuring relays and protection equipment, including any combination of equipment to form a distributed protection scheme for power system protection such as control, monitoring and process interface. This part of IEC 60255 specifies common rules and requirements applicable to measuring relays and protection equipment, including any combination of equipment to form a distributed protection scheme for power system protection such as control, monitoring and process interface. Standardization, in link with mandate M/490, of measuring relays and protection equipment used in the various fields of electrical engineering covered by CENELEC, taking into account combinations of devices to form schemes for power system protection including the control, monitoring and process. This part of IEC 60255 specifies common rules and requirements applicable to measuring relays and protection equipment, including any combination of equipment to form a distributed protection scheme for power system protection such as control, monitoring and process interface equipment, to obtain. ISO (International Organization for Standardization) develops international standards to ensure consistency, safety, and effectiveness in various fields, including relay protection. Relay protection plays a crucial role in electrical power network transmission and distribution systems, safeguarding. Based on this, this paper proposes a novel relay protection equipment status evaluation strategy. Firstly, considering the fuzziness and uncertainty of the boundary division of relay protection evaluation levels, a relay protection risk assessment method based on normal cloud model has been. a Formal Vote of CEN/CENELEC national members and final ratification. This European Standard is published as an identical natio al standard and every conflicting national standard will be withdrawn. The content of a European Standard d oes not purport to include all the necessary provi ions of a. The International Electrotechnical Commission (IEC) is currently working on a new series of standards that covers the functional requirements of measuring relays and related equipment used to protect electrical transmission and distribution systems.
