Home / Standards / GB/T 7409.3-1997 GB/T 7409.3-1997 Excitation system for synchronous machines — Technical requirements of excitation system for large and medium synchronous generators 同步电机励磁系统 大、中型同步发电机励磁系统技术要求 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A