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兖州矿业(集团)公司兴隆庄煤矿和徐州翔和电器设备有限公司共同研制的LZK200/550架线自动供电装置断电分区开关,有效解决了目前矿山井下电机车运输中常用的HHP1型单闸刀型开关漏电、过热甚至烧毁的难题,减少了设备维护量,保障了运输安全。现在我国井下电机车牵引网络普遍使用的分区开关,其外壳为普通型,进线孔没有采取任何防潮措施,开关外壳主体与盖子之间的结合面没有密封垫,常因井下潮湿而出现开关烧毁的现象,严重影响了电机车的正常运行和矿井的安全。所以,
Yanzhou Mining (Group) Co., Ltd. Xinglongzhuang Coal Mine and Xuzhou Xiang and Electric Equipment Co., Ltd. jointly developed LZK200 / 550 line power supply automatic power-off partition switch, the effective solution to the current mine underground electric car transport commonly used HHP1 single knife Type switch leakage, overheating or even burned the problem, reducing the amount of equipment maintenance, to ensure the safety of transport. Now China’s underground electric locomotive traction network commonly used partition switch, the shell is an ordinary type, the inlet hole did not take any moisture-proof measures, switch the main body and cover the junction between the surface without a seal, often due to downhole humidity switch burnout The phenomenon seriously affected the normal operation of electric locomotives and mine safety. and so,