基于模拟电路的自复式过欠压保护器设计与实现  

Design and Implementation of Self-Reset Over-Voltage or Under-Voltage Protection Device Based on Analog Circuit

作　　者：易先君 

机构地区：[1]上海电科电器科技有限公司,上海200063

出　　处：《电器与能效管理技术》2017年第8期21-24,共4页Electrical & Energy Management Technology

摘　　要：过欠压保护是低压配电系统对用电设备的一项基本保护。通过对功率继电器的研究,提出一种采用模拟电路和小型功率继电器组合设计的自复式过欠压保护器,给出原理框图及电路原理图,实现过欠压保护功能和状态指示功能。通过试验测试,证明了自复式过欠压保护器可以有效实现对用电设备的保护,保证了供电质量。Over- under-voltage protection is a basic protection of low-voltage distribution system for electricequipment. Based on the research of power relay,a self-reset over-voltage or under-voltage protection device wasproposed,which is based on the combination design of analog circuit and small power relay. The principle block diagram and circuit diagram were given. Self-reset over-voltage or under-voltage protection and state indication function was realized. Through experimental tests, self-reset over-voltage or under-voltage protector can be proved effectively implement the protection of electric equipment,to ensure the quality of power supply.

关 键 词：模拟电路 过电压保护 欠电压保护 自复式 

分 类 号：TM588[电气工程—电器]