直流大功率继电器分断电弧特性试验研究  

Experimental Study of Breaking Arc for High-Power DC Relay

作　　者：薄凯[1] 乔鑫磊 陈默[1] 翟国富[1] 

机构地区：[1]哈尔滨工业大学军用电器研究所,黑龙江哈尔滨150001

出　　处：《电器与能效管理技术》2015年第15期7-10,共4页Electrical & Energy Management Technology

基　　金：国家自然科学基金资助项目(51277038)

摘　　要：以270 V直流大功率继电器中的桥式触头为研究对象,针对触头分断过程中产生的电弧问题,考虑外加磁场和触头分断速度对熄弧的影响,分别进行了相关试验。采用桥式触头分断电弧试验装置,在不同横向磁场和不同分断速度条件下分别研究了电弧的特性参数,采用高速摄像机记录了电弧随时间变化的图像,同时利用数字示波器记录电弧电压及电流波形,得到了燃弧时间和触头材料净损失量的变化规律。为直流大功率继电器的灭弧系统设计提供参考。Based on the bridge contacts of the DC 270 V power relay, for arcing contacts generated during breaking,considering the impact of magnetic field and contact breaking speed on arc extinction, the corresponding experiments were carried out. Using bridge contact are breaking experimental device to investigate the arc breaking parameters on transverse magnetic field at different speeds. Record arc time-varying image by high-speed cameras, and recording the are voltage and current waveforms by digital oscilloscope,it finally achieved the change laws of arc duration and amount of the net loss of contact material. The study could provide reference for designing are extinction system of high-voltage DC power relay.

关 键 词：直流电弧 燃弧时间 材料转移 分断速度 

分 类 号：TM501.2[电气工程—电器]