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作 者:刘波[1]
机构地区:[1]神华乌海能源有限责任公司,内蒙古乌海016000
出 处:《煤炭工程》2016年第12期66-69,共4页Coal Engineering
摘 要:为解决乌海能源公司由于煤矿井下环境恶劣,供电线路复杂,接头多,而发生短路故障引起越级跳闸,导致井下大面积停电的问题,文章阐述了各煤矿供电系统监测监控的必要性。详细介绍了乌海能源公司各煤矿供电系统存在问题为:各矿采购的开关数量较多、批次不一,厂家组成较多,导致开关保护整定匹配较难;并提出了解决方法为:应用电力监控及防止短路越级跳闸系统。该系统的应用保障了煤矿井下供电的可靠性、安全性。In order to solve the short-circuit fault override trip,caused by poor environment of underground coal mine,complex power supply line,multi joint,resulting in underground blackout,the necessity of monitoring and inspecting was explained for coal mine power supply system. The problems in coal mine power supply system of Wuhai Coal Group were introduced,which was the matching difficulty of switch protection setting,as the large- amount switches purchased in different coal mines,were of different batches or different manufacturers. A solution scheme was proposed using the power monitoring and override trip prevention system toguarantee the reliability and safety of coal mine underground power supply.
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