China 'GB/T 7409.4-2023
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 7409.4-2023
Synchronous motor excitation system Part 4: Technical requirements for small and medium-sized synchronous motor excitation system 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
Issued Date:2023/9/7
Implemented Date:2024/4/1
Issued by:
The Standardization Administration of the People's Republic of China