摘要
研制了一种基于紫外法的开关柜电弧在线检测装置,该装置通过检测柜中电弧中的'日盲'区紫外光,达到对电弧的准确识别,且具有动作时间快、灵敏度高、抗干扰能力强等优点。研究了紫外光功率法的测量原理,给出了系统硬件各部分的组成以及原理,在此基础之上,研究了系统的软件程序设计。该检测装置可单独用于开关柜,也可为各种继电保护设备提供接口,提高了开关柜的技术水平和安全指数。进行了空气间隙放电试验,证明了该装置能够准确检测气体放电的紫外辐射功率,更准确地检测到放电电弧。装置可应用于开关柜电弧检测,能够有效地防止由电弧引起的意外事故的发生。
An online detecting device for switchgear arc based on ultraviolet method is developed.The device can achieve an accurate identification of arc by detecting the ultraviolet light in the＂solar-blind＂area of the cabinet,and has many advantages such as fast action,high sensitivity and strong anti-interference ability,etc.The measuring principle of ultraviolet-power method is developed,the composition and the principle of the system hardware are presented,and the software program design of the system is developed on this basis.The detection device can be used in the switchgear individually,and also can provide interfaces for various relay protection equipment to improve the technical level and the safety index of the switchgear.The air-gap discharge test is carried out and it proves that the device can accurately detect the ultraviolet radiation power of the air discharge,and more accurately detect the discharge arc .The devicecan be used in the arc detection of the switchgear,and it can effectively prevent accidents caused by arc.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第5期128-133,152,共7页
Power System Protection and Control
基金
重庆市自然科学基金攻关项目(2074920070057)
关键词
紫外法
电弧
紫外光功率法
开关柜
在线检测
UV method
electric arc
UV optical power method
switchgear
online detecting
