求翻译：本文分析了国内外电动机保护的发展，对电动机保护器系统进行了研究，开发了主要针对大中型电动机的智能电动机保护器。是什么意思？

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This paper analyzes the development of motor protection at home and abroad, for motor protection system for the research, development of large and medium-sized motor for the intelligent motor protector.

This article has analyzed the development which the domestic and foreign electric motors protect, has conducted the research to the electric motor protector system, developed has mainly aimed at the large and middle scale electric motors the intelligent electric motor protector.

正在翻译，请等待...

This paper analyzes the development of motor protection at home and abroad, for motor protection system for the research, development of large and medium-sized motor for the intelligent motor protector. ;