本书以培养供电企业配网一线班组人员职业技能为出发点，以现场运维为核心，结合案例分析，编写成手册或工具书教材，指导现场人员针对不同配电网故障类型选取有效的定位技术手段，提升配电网故障研判、处理效率。

为积极服务配电网精益化运维管理对人才的需求，提升配电网运维管理水平，培养一批高技术配电网运维一线人才，全国输配电技术协作网组织各省电力公司、华北电力设计院有限公司、高校等生产运维技术专家，基于理论分析，结合现场案例，归纳配电网故障定位各种技术，编写《配电网故障定位技术》一书，展示不同类型故障的研判、处理方法，为读者提供可实际应用的参考，指导配电网运维人员工作的顺利开展。《配电网故障定位技术》以培养供电企业配电网一线班组人员职业技能为出发点，以现场运维为核心，结合案例分析，编写成工具书教材，指导现场人员针对不同配电网故障类型选取针对性的技术手段，提升配电网故障研判、处理效率。 《配电网故障定位技术》坚持系统、精炼、实用的原则，整体规划及教材编写切合配电网一线班组人员阅读需求，描述配电网短路、单相接地、断路等典型故障特征及危害，总结归纳国内主流配电网故障定位先进技术和方法，并结合实际应用案例阐述不同定位技术的适用场合。在编写过程中，广泛征求各网省技术专家的建议，充分吸取设备厂商和高校在设备生产和运行研究的先进经验，共同完成编制。 本书分 5 章，第 1 章为概述，由国网福建省电力有限公司、清华大学编写；第 2 章为配电网常见故障，由国网河北省电力有限公司电力科学研究院、国网北京市电力公司电力科学研究院编写；第 3 章为配电网架空线路故障定位及处理，由国网湖南省电力有限公司电力科学研究院、国网湖北省电力有限公司电力科学研究院编写，第 4 章为配电网电缆线路故障定位及处理，由国网北京市电力公司电力科学研究院、国网河北省电力有限公司电力科学研究院编写；第 5 章为配电网故障定位技术应用实例，由国网湖南省电力有限公司电力科学研究院、国网福建省电力有限公司、 国网河北省电力有限公司电力科学研究院、国网北京市电力公司电力科学研究院、国网安徽省电力有限公司黄山供电公司编写。 由于编者自身的认识水平有限，本教材难免有遗漏之处，恳请各位读者赐教，帮助我们不断更正并提高教材质量水平。 编 者2018 年 7 月

前言 1 概述······················································································ 1 1.1 配电系统组成 ····································································· 1 1.2 配电自动化简介 ·································································· 5 2 配电网常见故障 ·································································· 7 2.1 中压配电网故障 ·································································· 7 2.2 低压配电网故障 ································································ 23 小结······················································································ 28 3 配电网架空线路故障定位及处理 ···································· 29 3.1 单相接地故障 ··································································· 29 3.2 短路故障 ········································································· 50 3.3 断线故障 ········································································· 62 小结······················································································ 71 4 配电网电缆线路故障定位及处理 ···································· 73 4.1 单相接地故障 ··································································· 73 4.2 相间短路故障 ··································································· 93 4.3 断路故障 ········································································ 103 小结····················································································· 106 5 配电网故障定位技术应用实例 ······································· 107 5.1 故障定位技术及方法 ························································· 107 5.2 故障定位实例 ·································································· 128小结····················································································· 154 附录 规划供电区域划分 ····················································· 155 参考文献················································································· 156