dlt 911-2004电力变压器绕组变形频率响应分析法

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1、ICS27.100F24备案号:15182-2005EIL中华人民共和国电力行业标准DL/T911一2004电力变压器绕组变形的频率响应分析法Frequencyresponseanalysisonwindingdeformationofpowertransformers2004-12-14发布2005-06-01实施中华人民共和国国家发展和改革委员会发布DL/T911一2004目次前言···············‘···············‘·‘···············‘··················‘························

2、··，·········‘⋯⋯n1范围··············‘···································································································⋯⋯12规范性引用文件·············································。·······，·············································⋯⋯13术语和定义·..................................

3、............................................................................14检测原理·.................................................................................................................25检测仪器的要求·········，········································································

4、···············⋯⋯‘26检测方法······························。·············。·····································，·························⋯⋯37绕组变形的分析判断····················································，·····························⋯⋯‘’·”·’·‘3附录A(规范性附录)用相关系数R辅助判断变压器绕组变形·.....................

5、.......................6附录B(资料性附录)变压器绕组变形的典型幅频响应特性曲线··································⋯⋯7DL/T911一2004fil青本标准是根据原国家经贸委《关于确认1999年度电力行业标准制、修订计划项目的通知》(国经贸电力【1999]40号)安排制定的，目的是规范和指导电力变压器绕组变形频率响应分析法(不包括低压脉冲法)的现场应用。用频率响应分析法检测变压器绕组变形具有检测灵敏度高、现场使用方便、可在变压器不吊罩的情况下判断变压器绕组变形等优点，现己在电力行业广泛应用。本标准的附录A为规

6、范性附录，附录B为资料性附录。本标准由中国电力企业联合会提出。本标准由电力行业高压试验技术标准化技术委员会归口并负责解释。本标准起草单位:中国电力科学研究院、广东省电力试验研究所、福建省电力试验研究院、安徽省电力科学研究院、华北电力科学研究院、武汉高压研究所。本标准赶草人:干早、高克利、林春耀、欧阳旭东、张孔林、余国钢、何宏明、马继先、梅刚。DL/T911一2004电力变压器绕组变形的频率响应分析法范围本标准规定了用频率响应分析法检测变压器绕组变形的基本要求。本标准适用于6kV及以上电压等级电力变压器及其他特殊用途的变压器。2规范性引用文件下列文件中的条款通过本标准的

7、引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。G131094.1电力变压器第一部分总则(egvIEC60(Y76-1:1993)GB1094.5电力变压器第五部分承受短路的能力(neqIEC60076-5:1976)DL/T596电力设备预防性试验规程3术语和定义下列术语和定义适用于本标准。3.1绕组变形windingdeformation指电力变压器绕组在机械力或电动力作