服役老化交联聚乙烯配电电缆状态评估

Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI:10.1109/EEIC.2001.965673

W. McDermid, J. Bromley

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引用次数: 3

摘要

由于曼尼托巴水电公司将电压从12千伏转换为25千伏，大量使用了约25年的15千伏XLPE电缆被废弃。利用这个机会进行了诊断测试，包括泄漏电流测量、同心中性点的定位和恶化检测以及局部放电点的定位和量化。随后，进行了0.1 Hz击穿试验。同样数量的电缆用0.1 Hz正弦波和0.1 Hz cos-矩形波形进行测试。本文回顾了这些测试的结果及其在维修方面的适用性。

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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Condition assessment of service aged XLPE distribution cable

As a result of a voltage conversion from 12 kV to 25 kV at Manitoba Hydro, a significant amount of 15 kV XLPE cable, approximately 25 years of age was abandoned. The opportunity was taken to carry out diagnostic tests consisting of leakage current measurements, location and detection of deterioration in the concentric neutral, and location and quantification of partial discharge sites. Following this, 0.1 Hz breakdown tests were done. Similar amounts of the cable were tested with 0.1 Hz sine wave and 0.1 Hz cos-rectangular waveform. The paper reviews the findings of these tests and their applicability for maintenance purposes.

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Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)

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