配电线路接地故障危害及防护措施探讨

The Study on Harm and Protection Measures for Grounding Fault of Distribution Line

摘要: 配电线路因网络复杂、所经地域条件差等因素容易发生接地等故障，进而对电网、设备的安全经济运行产生较大影响。文中从接地故障的危害性进行阐述，并通过对故障原因进行深入分析，从规范管理、采用小电流接地选线装置、日常维护、试验及验收等方面入手，对防治配网接地故障措施进行了探讨。

Abstract: Because of network complexity, poor regional conditions and other factors, grounding fault easily occurs at distribution line, and then may bring about large harm to the safety and economic oper-ation of the power grid equipment. This paper described the harmfulness of grounding fault, and presented a deep analysis of fault reason. Starting with Standardized Management, using ground fault line detection device in Peterson-coil-grounding system, daily maintenance, test and accep-tance, etc., the article mainly discussed the prevention measures for grounding fault of distribution network.