Research on New-type Microcomputer Synthesis Protection Device in Underground Lighting Network
At the present time, the problems existing in the 127V coalmine illumination synthesis protection devices of the coal mine tunnel are the short effective short-circuit protection distance and the dispersive tripping value of the electrical leakage protection devices. So studying new-type microcomputer synthesis protection device in underground illumination network is important to ensure the colliery security. A new adaptive protection algorithm and short-circuit current superposition principle are used to realize long distance protection. Aiming at electric leakage fault, additional direct current measurement theory and voltage following circuit are used to solve the effect of voltage fluctuation in network. Because advanced algorithm and new protective principle are used in the system, protection distance and reliability of lighting protection device are improved obviously.
coalmine illumination short-circuit protection electrical leakage protection microcomputer synthesis protection device
ZHAO Laijun XU Dan ZOU Youming SUN Yanzhou
School of Electrical Engineering & Automation, Henan Polytechnic University, Jiaozuo 454003, Henan, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
991-996
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）