Home / Standards / GB/T 37549-2019 GB/T 37549-2019 Active Technical code for relaying protection of generator-transformer unit in large capacity nuclear power plant 大型核电发电机变压器组继电保护技术规范 Standard Type GBT ICS 29.240 CCS K45 Status 现行 Issue Date 2019-06-04 Implementation 2020-01-01 Responsible Dept 中国电力企业联合会 Drafting Unit N/A