期刊名称：Bulletin of the Institute of Heat Engineering
印刷版ISSN：2083-4187
出版年度：2014
卷号：94
期号：4
页码：250
语种：English
出版社：Warsaw University of Technology
摘要：With the development of power systems in recent years, the total amount of power cables in operation hasincreased greatly, and there are growing reports of cable failure. Cable failures may be due to various intrinsicor extrinsic factors and can lead to massive economic loss. With regard to high-voltage cables, such as 110 kVpower cables, there are very few accurate reports on the actual fault observed. This article first analyses thepossible causes of power cable outer sheath failure. It then introduces the bridge and step voltage methods,which are traditionally used for cable fault locating, and describes a new method for accurate fault locatingin 110 kV cables, which uses the bridge method to pre-locate the fault and then the step voltage method toaccurately determine the precise fault locating. Field testing confirms the applicability of the new method foraccurate fault locating in 110 kV power cables. The results shown in this article may provide a good referencefor the development of future research in related fields.
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