在电力系统继电保护设备中,因为出现系统故障时产生的各种电磁干扰信号既大又复杂,要保证保护设备的正确动作,电磁兼容性设计,特别是控制快速瞬变脉冲群干扰信号对保护设备影响的设计显得非常重要。本文重点讨论控制瞬态干扰的方法、多层电路板布线规则、去耦与旁路、接地技术等。 In the power system relay protection equipment, because of the system failure occurs when a variety of electromagnetic interference signals are large and complex, to ensure the correct operation of protection equipment, electromagnetic compatibility design, especially the control of fast transient burst interference signal pairs The design that protects the impact of equipment is very important. This article focuses on ways to control transient disturbances, multi-layer board routing rules, decoupling and bypassing, grounding techniques, and more.