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由于鹤矿集团铁路运输部直流牵引供电线路延长,变电所脱扣器保护不能满足线路全长,存在保护死区导致保护误动和拒动情况较多,造成生产的不便和电气设备烧损。经机电处、铁路运输部、诚基水电热力公司、北京美兰尼尔有限公司共同研制成DPU-11直流牵引系统保护测控装置并现场进行了试验,并对该装置性能进行分析。
Due to the extension of the DC traction power supply line of the Railway Transport Department of Crane Mining Group, the protection of the substation trip can not meet the full length of the line, and there are many protection malfunction and refusing movements caused by dead zone protection, resulting in inconvenience in production and burning of electrical equipment . The Electrical and Mechanical Services Department, the Ministry of Railways, Chengji Hydropower Company, Beijing Meilanier Co., Ltd. jointly developed DPU-11 DC traction system protection and monitoring devices and field experiments were conducted, and the device performance analysis.