PD detection and localization by means of acoustic measurements on hydrogenerator stator bars
PD detection and localization by means of acoustic measurements on hydrogenerator stator bars
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DOI：
10.1109/94.407030
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发表时间：
1995-08
影响因子：
3.1
通讯作者：
R. Bozzo;F. Guastavino
中科院分区：
文献类型：
--
作者：
R. Bozzo;F. Guastavino
声局部放电检测出现在各种绝缘系统中的局部放电源的定位有用。这种方法的实用性，以定位在水轮发电机定子线棒放电源说明。所采用的测量程序，基于两个压电传感器定位在一个酒吧，允许识别的放电部位的位置在/spl sim/2厘米的误差范围内。这样的测量程序似乎是有用的诊断工具，在质量控制的酒吧，不通过指定的验收测试或在新的绝缘系统的发展。文中给出了测量电路和相应的测试方法。给出了关于所获得的信号的所测量的声速的进一步评论。>
Acoustic partial discharge detection appears useful for the location of PD sources within various kinds of insulating systems. The usefulness of such a method to locate discharge sources in hydrogenerator stator bars is illustrated. The adopted measuring procedure, based on two piezo-electric transducers positioned on a bar, allows the identification of the discharge site position within an error range of /spl sim/2 cm. Such a measuring procedure appears useful as a diagnostic tool in quality control for bars that do not pass the specified acceptance test or in the development of new insulating systems. The measurement circuit and the relevant test procedure are presented. Further comments about the measured acoustic velocities of the acquired signals are given. >