110 kV变压器差动保护装置检验方法研究  

Test Method for Differential Protection Device of 110 kV Transformer

作　　者：杨华 YANG Hua(Aecc Aviation Power Co.,Ltd.,Xi′an 710021,China)

机构地区：[1]中国航发动力股份有限公司,陕西西安710021

出　　处：《电工技术》2023年第16期154-156,159,共4页Electric Engineering

摘　　要：针对变电站中主变压器差动保护误动作导致工厂非计划性停电事故,分析了变压器差动保护装置工作原理和六角图理论,以PMC887型差动保护装置为应用实例介绍了变压器差动保护装置的检验方法并验证了其有效性。该方法有助于变电站安全稳定运行,具有较高的工程实用价值。Aiming at the unplanned power outage accident caused by the misoperation of transformer differential protection in substation,the principle of transformer differential protection device and hexagon vector is analyzed.This paper introduces the test method of PMC887 transformer differential protection device with an application example.The proposed method is practical and conducive to the safe and stable operation of the substation.

关 键 词：变压器 差动保护 极性 

分 类 号：TM774[电气工程—电力系统及自动化]