liuxilin1215 发表于 2014-2-6 07:59:38

IEC 61800-2-1998

IEC 61800-2-1998 Adjustable speed electrical power drive systems – Part 2: General requirements – Rating specifications for low voltage adjustable frequency a.c. power drive systems


admin 发表于 2014-2-10 18:37:59

谢谢您的分享，金币已奖励。
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