大型油浸式电力变压器断线故障判别技术优化研究  

Research on Optimization of Technology for Identifying Disconnection Faults of Large Oil-immersed Power Transformers

作　　者：崔翔 尹相国 魏晓东 许涛 CUI Xiang;YIN Xiangguo;WEI Xiaodong;XU Tao(Ultra-high Voltage Company of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750001,China)

机构地区：[1]国网宁夏电力有限公司超高压公司,宁夏银川750001

出　　处：《山东电力高等专科学校学报》2024年第3期22-25,共4页Journal of Shandong Electric Power College

摘　　要：当主接线采用一个半断路器接线方式时,现有保护对低负荷状态下发生的大型油浸式电力变压器断线故障反应不够灵敏。分析了该情况下变压器断线故障发生后保护的动作情况,对大型油浸式电力变压器断线故障判别技术进行了优化,并给出了相应的断线故障处置措施,以实现大型油浸式电力变压器断线故障的快速判别与处置。When the main electrical connection adopts one-and-a-half circuit breaker connection mode,the existing protection is not sufficiently sensitive to disconnection faults of large oil-immersed power transformers occurring under low-load condition.The action of protection after the occurrence of the transformer disconnection faults is analyzed,the technologies for identifying disconnection faults of large oil-immersed power transformers are optimized,and the corresponding measures for handling disconnection faults are provided so as to realize the rapid identification and disposal of transformer disconnection faults.

关 键 词：油浸式变压器 断线故障 一个半断路器接线 

分 类 号：TM774[电气工程—电力系统及自动化]