电力变压器超高频局部放电检测的灵敏度检验

Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI:10.1109/ELINSL.2004.1380448

S. Meijer, E. Gulski, J. Smit, H. Reijnders

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引用次数: 25

摘要

众所周知，由于绝缘缺陷引起的故障通常先于局部放电活动。在过去的几年里，人们对电力变压器的在线诊断方法进行了研究。本文对其中一种方法——UHF PD检测技术的灵敏度进行了测试，并将其应用于5种不同的高、中压变压器，额定功率范围在14 ~ 500 MVA之间。实验证明了超高频技术检测电力变压器局部放电的灵敏度。在此基础上，提出了一种类似于GIS的灵敏度检验方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Sensitivity check for UHF PD detection on power transformers

It is known that failure due to insulation defects are often preceded by partial discharge activity. Over the last years, online diagnostic methods for power transformers have been investigated. In this paper the sensitivity of one of these methods, the UHF PD detection technique, has been applied on five different high- and medium voltage transformers with power ratings in the range of 14 to 500 MVA. From these experiments, the sensitivity of the UHF technique to detect partial discharges in power transformers has been proven. Based on these results, a sensitivity check similar to GIS is proposed in this paper.

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Conference Record of the 2004 IEEE International Symposium on Electrical Insulation

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