中压配电线路故障跳闸的影响因素及处理方案解析

Analysis of Influencing Factors and Treatment Schemes for Fault Tripping of Medium Voltage Distribution Lines

为确保中压配电线路能正常使用,充分发挥自身的功能作用,做出科学防控及处理线路故障跳闸故障的建议。从分析线路故障跳闸的影响因素着手,包括绝缘子串的闪络放电、保护整定值过低以及合闸冲击现象等,探讨响应的防范建议与处理方案,降低杆塔接地电阻、防控外力侵袭、更新绝缘子、加装安普线夹、治理合闸冲击电流等,希望能给同行实践带来一些帮助。

In order to ensure the normal use of medium voltage distribution lines, give full play to their own functions,make scientific prevention and control and handle line fault tripping. Starting from analyzing the influencing factors of line fault tripping, including flashover and discharge of insulator string, low protection setting value and switching on impact. Discuss prevention suggestions and treatment schemes. Reduce tower grounding resistance, prevent and control external force invasion, update insulators, install amp clamps, and control closing impulse current. Hope to bring some help to the practice of peers from the theoretical level.