
Measuring relays and protection equipment Part 151: Functional requirements for over/under current protection
出版:International Electrotechnical Committee

专家解读视频
IEC 60255-151:2009 specifies minimum requirements for over/under current relays. It includes a specification of the protection function, measurement characteristics and time delay characteristics. Defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions.
BS EN 60255-151:2009 - Identical