首页|一起变压器套管介损在线监测数据异常分析

一起变压器套管介损在线监测数据异常分析

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套管是将变压器内部高压线引出的重要附件,其安全性对于变压器乃至整个电网的安全稳定运行至关重要,因此应加强变压器套管在线监测数据分析,及时发现设备潜在缺陷.介绍了一起 110 kV变压器套管介损在线监测数据异常的案例,综合分析了仪器设备、环境、系统电压、套管缺陷等因素对在线测量结果的影响.通过试验分析发现,系统电压谐波及频率变化是造成此次在线监测数据异常的主要原因,并对变压器套管在线监测装置日常运维提出了相关建议.
Case Analysis of Dielectric Loss Data Abnormality in Online Monitoring of Transformer Bushing
Bushings are important accessories covering the outward high-voltage wires in transformers,and their safety is crucial for safe and stable operation of transformers and even networks.Therefore it is necessary to strengthen online mo-nitoring data analysis of transformer bushings for timely detection of potential defects.This paper focuses a case of dielec-tric loss data abnormality encountered by an online-monitored 110 kV transformer bushing,and analyzes the influences of instruments,environmental factors,system voltage,bushing defects,etc.on the online measurement results.It reports the conclusion made through experiment and analysis that system voltage harmonics and frequency changes were the main causes for the data abnormality.It also puts forward relevant suggestions for daily operation and maintenance of trans-former bushing online monitoring devices.

transformer bushingonline monitoringdielectric loss

夏健、易成星、左杰

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国网浙江省电力有限公司杭州供电公司,浙江 杭州 310016

国网杭州市钱塘区供电公司,浙江 杭州 311225

变压器套管 在线监测 介损值

2024

电工技术
重庆西南信息有限公司(原科技部西南信息中心)

电工技术

影响因子:0.177
ISSN:1002-1388
年,卷(期):2024.(19)