通过测量感应电压脉冲产生的剩余电荷对水树退化电缆进行截面定位

IF 0.4 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Engineering in Japan Pub Date : 2025-04-27 DOI:10.1002/eej.23506

Koki Watanabe, Tatsuya Sakoda, Akira Takahashi, Naoyuki Negishi, Kazunori Miyazaki

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引用次数: 0

摘要

为了建立一种新的水树降解的22 kV交联聚乙烯（XLPE）电缆的截面定位技术，即包含在另一根未降解的电缆中，我们测量了阻抗失配处的反射注入脉冲，这取决于水树。注入脉冲被传播到待测电缆中，并且测量到的反射脉冲的到达时间随着水树退化电缆的位置而变化。利用反射脉冲的到达时间实现了剖面定位。

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Section Locating of Water-Tree Degraded Cable by Measuring Residual Charges Induced by Induced Voltage Pulses

To establish a novel section locating technique for a water-tree degraded 22 kV cross-linked polyethylene (XLPE) cable, that is, included in another undegraded cables, we measured a reflected injection pulse at the impedance mismatch, which is dependent on water trees. The injection pulse was propagated into cables to be measured, and the measured arrival times of reflected pulses containing residual charges due to water trees were varied depending on the locations of water-tree degraded cables. The section locating was achieved by using the arrival time of the reflected pulse.

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来源期刊

Electrical Engineering in Japan 工程技术-工程：电子与电气

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Electrical Engineering in Japan (EEJ) is an official journal of the Institute of Electrical Engineers of Japan (IEEJ). This authoritative journal is a translation of the Transactions of the Institute of Electrical Engineers of Japan. It publishes 16 issues a year on original research findings in Electrical Engineering with special focus on the science, technology and applications of electric power, such as power generation, transmission and conversion, electric railways (including magnetic levitation devices), motors, switching, power economics.