Technical specifications of porcelain element for high voltage insulators 高压绝缘子瓷件技术条件
Sampling plans for high voltage insulators 高压绝缘子抽样方案
Guide to artificial pollution tests on high voltage insulators to be used on d . c . systems 直流电流系统用高电压绝缘子的人工污染度试验指南
An economical and effective new technology using sound card is proposed in this paper . it collects the leakage current from high voltage insulator , and then deals with the noise elimination using wavelet analysis . compared with the traditional signal analyzing method , the wavelet analyzing technology not only can distill the leakage current signal from the noise precisely , but also can distinguish the low quality character of leakage current signal . this method plays an important role to the device in early fault diagnosis , and can improve the accuracy of measurement and fault diagnosis in the application 介绍了一种利用电脑的声卡对高压绝缘子的泄漏电流进行采集的经济有效的新技术,并通过小波分析技术对所获得的信号进行消噪处理.与传统的信号分析方法相比,小波分析技术不仅能从噪声中准确提取待测泄漏电流信号,同时又可真实复现泄漏电流信号中的劣化特征,这对设备的早期故障诊断具有重要意义.显著提高了测量的准确度,增强了设备故障诊断的准确性