Home / Standards / GB/T 7409.4-2023 GB/T 7409.4-2023 Active Excitation systems for synchronous machines—Part 4：Technical requirements of excitation systems for medium and small synchronous machines 同步电机励磁系统 第4部分：中小型同步电机励磁系统技术要求 Standard Type GBT ICS 29.160.01 CCS K20 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A