DL-T 872-2004 小接地电流系统单相接地保护装置.pdfVIP

ICS29. K 45 备案号:13622-2004 OL 中华 人 民共 和 国 电力 行业 标 准 DL/T 872一 2004 小接地电流系统单相接地保护装置 Specificationofsinglephaseearthedrelay innon-effectiveearthedpowersystem 2004-03-09发布 2004-06-01实施 中华人民共和国国家发展和改革委员会 发布 DL/T872一 2004 目 次 一 前言 范围 ·············································································································…… “… 1 门 ‘ 规范性引用文件 ·······························································································… … 1 内 、 术语和定义 ········································································································…… 2 4 技术要求 ·········································”································“”················”··········…… 2 f l ︸ 试验方法 ········································································”····················…….’···..·…… 6 6 检验规则 ·······································································”··································…… 9 1 ， 标志、包装、运输和贮存 ···················································“································……10 附录A(资料性附录) 功能性能试验电路 ························”·················”·······…·…’…’二’“二‘11 一 参考资料 DL/T872一 2004 前 言 小接地电流系统在我国3kV-66kV电压等级电网中占比例最多，该系统的故障以单相接地故障最 为常见。近些年来，检测与隔离该系统单相接地的技术发展很快，各种小接地电流系统单相接地保护 (选线)装置纷纷涌现，为了满足国内对该产品设计、制造、检验和应用的需要，有必要制定有关该 类产品的行业标准。 本标准是根据原国家经济贸易委员会电力司电力 2〔000]70号文 2《00〕年度电力行业标准编制、 修订计划项目表》中第41项任务安排制定的。 本标准的附录A为资料性附录。 本标准由中国电力企业联合会提出。 本标准由电力行业继电保护标准化技术委员会归口并解释。 本标准起草单位:保定三川电气公司、中煤国际工程设计研究总院、华北电力大学、国电南京自 动化股份有限公司。 太标准幸要起草人:郝玉山、李润先、杨以涵、陈云仑、黄明强。