摘要
随着城市现代化建设进程的推进,10 kV城区配电网中电缆线路比重日益增长,造成系统对地电容电流增大,一旦发生接地故障就将导致故障电流幅值增大,对电缆线路绝缘构成热老化加速的威胁。为了更好地规划和维护城区电缆线路,利用ATP平台对10 kV辐射状配电网进行仿真,对影响弧光接地造成的故障危害程度进行了研究,以期为电力部门提供有用参考。
With the advancement of urban modernization construction,the proportion of cable lines in 10 kV urban distribution network is increasing,resulting in the increase of system capacitance current to ground.In consequence,the increased fault current amplitude upon the occurrence of grounding faults poses a threat of accelerated thermal aging to cable line insulations.In order to better plan and maintain urban cable lines,the present work conducted a simulation on 10 kV radiant distribution network by using ATP platform,and furthermore a study on factors influencing harm degree caused by arc grounding fault.The results may be useful for relevant enterprises.
作者
袁昕
王鹏朝
孟宪珍
童辉
李清
YUAN Xin;WANG Pengchao;MENG Xianzhen;TONG Hui;LI Qing(Economic and Technological Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830000,China)
出处
《电工技术》
2023年第21期137-138,142,共3页
Electric Engineering
关键词
弧光接地
电缆线路
热老化
影响因素
arc grounding
cable line
thermal aging
influencing factor
