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| International Standard Category: Motors |
GB/T 12668-1990 General specification for speed control assembly with semiconductor adjustable frequency for A.C.motor
交流电动机半导体变频调速装置总技术条件 ;
| Category No.: | 29.160.30 | Valid Status: | superseded |
| Issued Organization: | Issued Date: | 1990-12-28 | |
| Implemented Date: | 1991-10-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 12668.2-2002 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable frequency a.c. power drive systems |
Superseded Date: | 2003-4-1 |
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