This section specifies the minimum requirements for over/under current relays. This part includes technical specifications of protection functions, measurement characteristics and time-delay characteristics. This section applies to factors affecting steady-state accuracy and dynamic performance, and also includes test methods to verify performance and accuracy. This part does not cover the electrothermal relays specified in IEC 60255-8. General requirements for measuring relays and protective devices are in accordance with IEC 60255-1.
GB/T 14598.151-2012 Referenced Document
IEC 60255-1 Measuring relays and protection equipment - Part 1: Common requirements*, 2022-12-15 Update
GB/T 14598.151-2012 history
2012GB/T 14598.151-2012 Measuring relays and protection equipment.Part 151:Functional requirements for over/under current protection