电工技术学报2018，Vol.33Issue(11)：2613-2619,7.DOI:10.19595/j.cnki.1000-6753.tces.170542
油浸纸套管尾部受潮故障模拟及早期特征
Fault Simulation and Early Characteristics of Tail Moisture in Oil-Immigrated Paper Bushing
摘要
Abstract
In order to study the diagnosis and detection methods of insulation moisure for oil-impregnated paper (OIP) bushing, an OIP model with transparent sheaths was designed and a microinjection device was adopted to put deionized water into OIP model along top inner wall. The partial discharge (PD), dissipate factor, capacitance and frequency domain spectroscopy were measured after tail moisture in OIP bushing. The results presented that the capacitance was increasing with the moisture time under rated voltage ,instead of no change of tanδ and PD. The tendency of tanδ at 0.001 Hz had an increasing trend for tail moisture bushing. PD might occur under 1.5 times rate voltage after tail moisture in OIP. It has the possibility of misjudgment for the moisture deposition of bushing by traditional measurement.It is suggested that the both PD under 1.5 times rate voltage and FDS should be added for suspected moisture bushing in off-line test. And the mearsurement of capacitance in online test should be added in order to diagnose the tail mosture of bushing earily.关键词
油浸纸套管/早期受潮/局部放电/电容/频域介电谱/故障诊断Key words
Oil-impregnated paper bushing/early moisture/partial discharge/capacitance/frequency domain spectroscopy/fault diagnosis分类
信息技术与安全科学引用本文复制引用
戴佺民,齐波,李成榕,卓然,傅明利..油浸纸套管尾部受潮故障模拟及早期特征[J].电工技术学报,2018,33(11):2613-2619,7.基金项目
国家高技术研究发展计划(863计划)(2015AA050204)、国家自然科学基金(51477052)和中央高校基本科研业务费专项资金(2016XS03)资助项目. （863计划）
