ABB发电机转子接地保护装置国产化改造的研究与应用

Research and Application of Localization Transformation for ABB Generator Rotor Grounding Protection Device

详细分析了ABB励磁系统转子接地保护装置原理及存在的问题,调研、比较了不同原理构成的国产转子接地保护装置的优缺点,最终选定双端注入式微机型转子接地保护装置作为替代保护。通过改造方案的比选,决定在励磁系统AVR控制柜内安装新保护装置,提高了设备安全运行可靠性。

This paper analyzes the principles and problems of rotor grounding protection device in ABB excitation system,investigates and compares the advantages and disadvantages of the domestic rotor grounding protection devices with different principles and selects double-end injection type microcomputer rotor grounding protection device as substitute protection.Through the comparison of transformation schemes,it is decided to install the new protection device in AVR control cabinet in the excitation system.It improves the safe and reliable operation of equipments.