摘要
煤矿供电系统越级跳闸中由于电压波动、电气干扰、保护和开关性能差等原因造成的突发越级跳闸的比例远高于短路过流造成的越级跳闸。越级跳闸会引起井下大面积停电,通风系统、生产系统会停止运行,造成重大的生产安全问题。笔者立足于多年的工作实践,对当前煤矿井下供电系统越级跳闸产生的原因进行了全面的分析,并提出了有针对性的预防措施。
The proportion of the coal mine power supply system override trip caused by voltage fluctuation, electrical interference, poor protection and switching performance is much higher than that of the short circuit overcurrent. Override trip will cause underground blackout, the ventilation system, production system will stop running, and result in significant production safety problems. Based on many years of practice, the reasons of override trip in coal mine power supply system were comprehensively analyzed, some preventive measures and were put forward, Finally, the new technology to solve the tripping are discussed.
出处
《山东煤炭科技》
2016年第9期127-128,130,共3页
Shandong Coal Science and Technology
关键词
煤矿矿下
供电系统
越级跳闸
预防措施
coal mine power supply system override trip preventive measures
