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《Electric Engineering》 2018-15
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Cause Analysis and Countermeasures on Switch Tripping of Traction Substation Caused by Resonance Overvoltage of Heavy-haul Electrified Railway

LI Xueshan;Daqin Railway Co.,Ltd.Datong West power supply section;  
Resonant overvoltage frequently occurred in HXD electric locomotives at Wuzhai station on the Ningke line,especially the HXD2 electric locomotive,roof arrester explosion or discharge gap breakdown occurred many times,which led to frequent tripping of switches in Qinjiazhuang substation.By analyzing the switch tripping and resonant overvoltage of feeding section in Qinjiazhuang substation,in this paper,it proposes to install a filter in the feeding section of Qinjiazhuang-Wuzhai for absorbing high-order harmonics,to change the type and number of electric locomotive in the feeding section,and adopt an effective operation management measure.
【CateGory Index】: U226.7
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