CAJ | 학술논문

煤矿高压电网在出现短路故障时容易发生越级跳闸事故,导致井下大面积停电,引起瓦斯积聚,威胁矿井的安全.文章分析了矿井高压供电系统的特点,在深入研究防越级跳闸工作原理及特性的基础上,设计了一种有效预防越级跳闸的保护系统,解决了煤矿供电系统广泛存在的越级跳闸技术难题,可以确保煤矿供电系统的可靠性和矿井的安全性.
매광고압전망재출현단로고장시용역발생월급도갑사고,도치정하대면적정전,인기와사적취,위협광정적안전.문장분석료광정고압공전계통적특점,재심입연구방월급도갑공작원리급특성적기출상,설계료일충유효예방월급도갑적보호계통,해결료매광공전계통엄범존재적월급도갑기술난제,가이학보매광공전계통적가고성화광정적안전성.
The overriding trip accident of high voltage electrical transmission systems in mine is generally caused by some short-circuit faults,which may lead to a wide range of power failure and gas accumulation,threatening the safety of the mine.In this paper,the features of mine grid transmission system were discussed firstly.And then an overriding trip protecting system is designed by deeply investigating on its working principles and characteristics.The system can solve the overriding trip problems effectively and help to ensure the reliability and safety of mine electrical supply system.