摘要
针对电磁干扰由传导、辐射、耦合3种方式作用于系统的情况,对传导干扰实行电容滤波和磁珠抑制高频干扰相结合的处理方法;对辐射干扰采用将干扰源和被干扰源进行金属壳接地屏蔽的方法;对耦合干扰采用印刷电路板PCB(PrintedCircuitBoard)设计时将易耦合干扰的线路两边用地线包围等措施;最终使保护装置的抗干扰性能得到很好改善。
The electromagnetic interference has three principal approaches to power system, i.e.,conduction,radiation and coupling. The capacitive filter and the magnetons restraining HF interference are used to deal with the conduction interference;both the interference sources and the disturbed sources are shielded with grounded metal rack to deal with the radiation interference;both sides of the lines susceptible to the coupling interference are surrounded by ground wires in printed circuit board design to deal with the coupling interference. As a result,the anti-interference performance of the protection has been significantly improved.
出处
《电力自动化设备》
EI
CSCD
北大核心
2005年第10期82-84,共3页
Electric Power Automation Equipment
关键词
传导
辐射
耦合
滤波
抑制
屏蔽
conduction
radiation
coupling
filtering
restraint
shield
