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
崔翔 1尹相国 1魏晓东 1许涛1
作者信息
- 1. 国网宁夏电力有限公司超高压公司,宁夏 银川 750001
- 折叠
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.
Abstract
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 dis-connection faults of large oil-immersed power transformers are optimized,and the corresponding measures for handling disconnec-tion 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Key words
oil-immersed transformer/disconnection fault/one-and-a-half circuit breaker connection引用本文复制引用
出版年
2024
NETL
NSTL
万方数据