场老化交联聚乙烯电缆泄漏电流特性研究

[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials Pub Date : 1991-07-08 DOI:10.1109/ICPADM.1991.172105

H. Muto, Y. Yamashita, Y. Maruyuma, Z. Iwata

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引用次数: 2

摘要

研究了交联聚乙烯(XLPE)电缆在直流和交流电场作用下的泄漏电流特性。通风树退化严重的电缆直流泄漏电流和直流分量明显增加。在这种情况下，桥式通风树在增加电流方面起着重要作用。在该类型电缆中观察到充电电流的低频分量。发现充电电流的直流泄漏电流、直流分量和低频分量以复杂的方式变化，取决于施加的电压及其历史。这可能与内部水树结构的变化有关。

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A study on leakage current characteristics of field aged XLPE cable

The leakage current characteristic of degraded XLPE (cross-linked polyethylene) cable was investigated under DC and AC electric field. The cable with heavy vented tree degradation showed a typical increase of DC leakage current and Dc component. In this instance, the bridged vented tree plays an important role in the increase of this current. The low-frequency component of the charging current was observed in the type of cable. The DC leakage current, DC component, and low-frequency component of the charging current were found to vary in a complex manner, depending on the applied voltage and its history. This may be attributable to the change of the internal water tree structure.<>

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[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials

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