GB/T 14598.121-2017量度继电器和保护装置第121部分:距离保护功能要求国家标准
英文:Measuring relays and protection equipment—Part 121:Functional requirements for distance protection GB/T 14598.121-201...
英文:Measuring relays and protection equipment—Part 121:Functional requirements for distance protection GB/T 14598.121-201...