柴玉华,巩彦江,杨刚,王云鹤,张瀚予,刘自清.基于接地电流高压电缆交叉互联故障分析[J].电测与仪表,2016,53(1):. CHAI Yu-hua,Gong Yanjiang,Yang Gang,Wang Yunhe,Zhang Hanyu,Liu Ziqing.Analysis of#$NBSthe cross–bonded failure of high voltage cable#$NBS#$NBS based on grounding#$NBScurrent#$NBS[J].Electrical Measurement & Instrumentation,2016,53(1):.
基于接地电流高压电缆交叉互联故障分析
Analysis of#$NBSthe cross–bonded failure of high voltage cable#$NBS#$NBS based on grounding#$NBScurrent#$NBS
High voltage cable metal sheath is usually cross-bonded in the cable cross connection box in order to reduce the metal sheath voltage. Because of the complexity of the cable laying environment, cross connection box will appear damp, water, external damage or other situations, leading high voltage cable metal sheath cross fail in link box, buried the hidden trouble to the safe operation of the whole system. This paper analyzes the features of the ground current when the failure of cross-bond in 110kV XLPE high voltage cable occurs, then models and simulates by ATP-EMTP electromagnetic transient simulation software, providing a reference for the fault detection of high voltage cable.