工矿自动化2012，Vol.38Issue(11)：43-46,4.
一种改进的矿井区域选择性联锁保护方案设计
Design of an Improved Protection Scheme of Mine Zone Selective Interlocking
摘要
Abstract
For problems that response time of underground integrated protection switches is long and uncertain because the switches are coming from different manufacturers and have different models, the paper proposed an improved protection scheme based on analysis of traditional protection scheme of zone selective interlocking: connect switch lockout signal interface of intelligent control module in tripping signal circuit of integrated protection switches in series, use 1:1 Hall-type current sensor to obtain current signal from secondary side of current transformer of the original protective device, and take the signal as acquisition signal of the intelligent control module. The scheme detects fault current through current sensor directly, which avoids protection from impact of integrated protection switches. The testing result shows that the intelligent control module in the improved scheme has response time of 800 Μs, response speed is significantly improved compared with the traditional scheme.关键词
煤矿供电网络/综保开关/越级跳闸/区域选择性联锁/短路保护/智能控制模块Key words
power supply network of coal mine/ integrated protection switch/ override trip/ zone selective interlocking/ short-circuit protection/ intelligent control module分类
矿业与冶金引用本文复制引用
黄翠柏,唐白山..一种改进的矿井区域选择性联锁保护方案设计[J].工矿自动化,2012,38(11):43-46,4.基金项目
国家自然科学基金项目(51077125) （51077125）
河南省重点攻关项目(082102240008) （082102240008）
