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Experimental Study of Analog Defects in HV XLPE Cable Based on Conventional and High-Band Pulse Current Methods
Pages: 30-33
Year: Issue:  5
Journal: Electric Wire & Cable

Keyword:  XLPE电缆悬浮缺陷滑闪缺陷时频图局部放电;
Abstract: 由于结构、施工等原因,电缆附件中出现局部放电的概率较大,为了研究高压电缆附件中缺陷致局部放电的发展过程,搭建了基于110 kV真实XLPE电缆的模拟缺陷试验平台,在电缆终端制作了悬浮和滑闪两种放电模型.研究结果表明:悬浮模型单周期放电次数少、放电模式单一,随着电压的增加,悬浮模型的放电量会出现增长的趋势;滑闪模型单周期放电次数多,放电模式不唯一,随着电压的增加,滑闪模型的放电量增加不明显.
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