Home / Standards / GB/T 23755-2020 GB/T 23755-2020 Active Three-phase site-combined power transformer 三相组合式电力变压器 Standard Type GBT ICS 29.180 CCS K41 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A