摘要
针对近年来发电厂、变电所使用的微机保护和综合自动化系统发生的雷害事故,讨论了低压电源系统的雷电干扰,以及雷电对二次回路等弱电系统的干扰。分析了雷电对微机保护、综合自动化系统的干扰方式、干扰的途径。深入研究了在弱电系统防雷上存在的缺陷和不足,提出了弱电系统防止雷电干扰的技术措施。
This paper analyzes the problems about lightning protection of light current system in power station. According to the lightning accidents of microcomputer-based protection and integrated automation in power station in recent years, it discusses the lightning interference of light current systems, such as low voltage source system and secondary circuit. Combining with the typical interference manners and approaches, it presents some technological measures to avoiding lightning interference.
出处
《广东输电与变电技术》
2007年第5期56-59,共4页
Guangdong Power Transmission Technology
关键词
微机保护
电磁兼容
雷电干扰
防雷措施
Microcomputer-based protection Electro-magnetic compatibility （EMC） Lightning interference Lightning protection measures
