求翻译：本文分析了国内外电动机保护的发展，以单片机R5F21258JFP及其外围器件作为硬件平台，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？

This paper analyzes the development of domestic and foreign motor protection, the microcontroller r5f21258jfp and its peripheral devices as a hardware platform, motor protection system, developed mainly for large and medium-sized motor Intelligence motor protector.

This paper analyzes the development of domestic and international motor protection, to 21,258 JFP F R 5 and its peripheral device as a hardware platform 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, by monolithic integrated circuit R5F21258JFP and the periphery component took the hardware platform, has conducted the research to the electric motor protector system, developed has mainly aimed at the

This article analyses the development of domestic and foreign motor protection, R5F21258JFP in single-chip microcomputer and its peripheral devices as the hardware platform, conducted a study on motor protection system, developed mainly for medium and large motors intelligent motor protector.

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