电磁干扰导致RCD剩余电流继电器误动作的典型案例分析与处理

Typical Case Analysis and Processing of Electromagnetic Interference Caused RCD Residual Current Relay Misoperation

RCD剩余电流继电器广泛应用于低压配电系统中,对低压配电系统的安全保护发挥了重要的作用。然而,电力系统中存在大量电磁干扰,电子设备受电磁干扰尤为敏感,因此针对RCD剩余电流继电器在现场安装使用过程中出现的几起典型电磁干扰问题进行分析和阐述,并对具体问题制定了相应的纠正措施,有效减少了RCD剩余电流继电器等电子设备受到电磁干扰的影响。

RCD residual current relay is widely used in low-voltage distribution system,which plays an important role in the safety protection of low-voltage power system.However,there are a lot of electromagnetic interference in the power system,and the electronic equipment is particularly sensitive to electromagnetic interference.In this paper,several typical electromagnetic interference problems of RCD residual current relay in the process of field installation and usage were analyzed and expounded.Corrective measures were formulated for specific problems,which could effectively reduce the impact of electromagnetic interference on RCD residual current relays and other electronic equipment.