| 检测XLPE电缆绝缘水树老化状态的超低频方波-工频叠加法研究 |
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| 引用本文： | 郑晓泉,屠德民. 检测XLPE电缆绝缘水树老化状态的超低频方波-工频叠加法研究[J]. 电工电能新技术, 2000, 19(3): 27-31 |
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| 作者姓名： | 郑晓泉 屠德民 |
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| 作者单位： | 西安交通大学电力设备电气绝缘国家重点实验室,西安,710049 |
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| 摘 要： | 本文提出了能有效检测ＸＬＰＥ电缆绝缘水树老化状态的超低频方波－工频电压叠加法新技术，对含水树ＸＬＰＥ电缆分别放加单极性方波和正负对称方波电压叠加工频电压所产生的响应电流特性进行了实验研究，找出了最佳叠加工频电压值，最后对产生超低频方波－工频电压叠加电汉响应的机理及其检测的影响因素进行了探讨。
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| 关 键 词： | XLPE电缆 水树老化 超低频方波－工频叠加法 绝缘 |
Study on ULFSW-PFV superposition method of detecting water treeing degradation of XLPE cable insulation |
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| ZHENG Xiao-quan,TU De-min. Study on ULFSW-PFV superposition method of detecting water treeing degradation of XLPE cable insulation[J]. Advanced Technology of Electrical Engineering and Energy, 2000, 19(3): 27-31 |
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| Authors: | ZHENG Xiao-quan TU De-min |
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| Abstract: | An ultra|low frequency square wave(ULFSW) and power frequency voltage(PFV) superposition method for detecting water treeing degradation of XLPE cable insulation is proposed.The current responses of water treeing degraded XLPE cable insulation under square wave of single polarity and double polarities are measured respectively. It is found that there is an optimum value of power voltage as the square|wave voltage is fixed.Finally the mechanism of current responses under ULFSW|PFV superposition voltage is analyzed and the disturbing factors in measurement are discussed. |
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| Keywords: | XLPE cable water|tree degradation ultra|low square|wave response current mechanism |
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