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高压电器  2015 

电抗器潜伏性故障特征及其耦合量分析综述

, PP. 150-155

Keywords: 并联电抗器,潜伏性故障,振动信号,阵列式传感器,故障定位,参量耦合

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Abstract:

针对电抗器容量及电压等级提高所带来的潜伏性故障发生趋势增加,笔者分析了绝缘水平、温升、振动特征参量的检测技术特点及其局限性,阐述了振动信号可作为电抗器各类故障的体现方式及其与电抗器的绝缘、温升之间的耦合关系,提出基于振动法的电抗器潜伏性故障检测应解决的关键技术问题,尤其是大型电抗器阵列式振动传感器的应用及其振动传播特性对故障诊断与定位的作用。以潜伏性故障特征及其耦合关系的角度诊断故障类型与故障定位,对电抗器状态检修具有实际的工程应用价值。

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