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Application of the Extended Phase-Resolved PD Patterns for Analysis of PD Activity in Epoxy Resin Insulation

机译:扩展相分辨PD模式在环氧树脂绝缘中PD活性分析中的应用

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For many years, one of the tools allowing the observation and analysis of activity of partial discharges (PD) occurring in the insulating systems of electrical equipment is the phase-resolved PD pattern acquisition method. Usually, raw PD measurement data collected during test of the insulating system regarding the number (intensity) of discharges during the defined test time are collected in a matrix representing 2-dimensional PD phase-charge space. Because of their digital form, it is possible to perform their complex numerical processing/transforming to obtain extended in-depth information on 2-dimensional distributions of other quantities describing large sets of registered PD pulses. The paper presents the application of this type of extended analysis for the description of selected properties of partial discharges arising in the thermosetting epoxy-mica insulation of rotating machines. Results of measurements made in laboratory conditions on insulating system of a motor stator bar were used for PD data analysis.
机译:多年来,用于观察和分析电气设备绝缘系统中发生的局部放电(PD)活性的工具之一是相分辨的PD模式采集方法。通常,在绝缘系统的测试过程中收集的有关定义的测试时间内的放电次数(强度)的原始PD测量数据会收集在代表二维PD相电荷空间的矩阵中。由于其数字形式,可以执行其复杂的数值处理/转换,以获得有关描述大量已注册PD脉冲的其他量的二维分布的扩展深度信息。本文介绍了这种扩展分析的应用,以描述旋转机械的热固性环氧云母绝缘中产生的局部放电的选定特性。在实验室条件下对电机定子棒的绝缘系统进行的测量结果用于PD数据分析。

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