Home / Standards / GB/T 21209-2007 GB/T 21209-2007 Abolished Guide for the design and performance of cage induction motors specifically designed for converter supply 变频器供电笼型感应电动机设计和性能导则 Standard Type GBT ICS 29.160 CCS K20 Status 废止 Issue Date 2007-12-03 Implementation 2008-05-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会