汤 威（中国建筑标准设计研究院有限公司，北京市 100048）

Analysis of the Impact of Surge Protective Device on Power Supply System Interference

TANG Wei(China Institute of Building Standard Design & Research,Beijing 100048，China)

Abstract：The concept of power supply system interference and the type and characteristics of interference are introduced,especially lightning strike surge and switching overvoltage interference;the response of surge protective device(SPD)to power supply system interference is analyzed;it points out that the response of SPD on power supply system interference shall be used to provide protection for equipment.

Key words：power supply system interference;surge;external surge;internal surge;surge protective device;coordination and cooperation;temporary overvoltage;failure mode

摘　要：介绍电源系统干扰的概念、干扰类型、干扰特性，尤其是雷击电涌和操作过电压干扰；分析电涌保护器(SPD)对电源系统干扰的响应情况；指出应利用SPD对电源系统干扰的响应以提供对设备的保护。

关键词：电源系统干扰；电涌；外部电涌；内部电涌；电涌保护器；协调配合；暂态过电压；失效模式

中图分类号：TU895                　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2024.04.004