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