| 单芯XLPE电缆金属护套绝缘在线监测研究 |
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| 引用本文： | 周志成,何俊佳,陈俊武,邹云屏. 单芯XLPE电缆金属护套绝缘在线监测研究[J]. 高压电器, 2006, 42(2): 90-92 |
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| 作者姓名： | 周志成 何俊佳 陈俊武 邹云屏 |
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| 作者单位： | 华中科技大学电气与电子工程学院,湖北,武汉,430074;华中科技大学电气与电子工程学院,湖北,武汉,430074;华中科技大学电气与电子工程学院,湖北,武汉,430074;华中科技大学电气与电子工程学院,湖北,武汉,430074 |
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| 摘 要： | 分析了电缆金属护套接地模型,提出了环流法在线监测XLPE电缆金属护套绝缘性能。试验结果表明,环流值与金属护套绝缘性能差异密切相关,因而提出了“环流绝对值”与“环流相对变化量”的判据。开发的在线监测系统能很好地监测电缆金属护套绝缘性能,提高了电缆运行可靠性。
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| 关 键 词： | 单芯XLPE电缆金属护套 在线监测 环流法 |
| 文章编号： | 1001-1609（2006）02-0090-03 |
| 收稿时间： | 2005-11-23 |
| 修稿时间： | 2005-11-232006-01-15 |
Research on the Insulation On-line Monitoring of Single-core XPLE Cable Metal Sheath |
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| ZHOU Zhi-cheng,HE Jun-jia,CHEN Jun-wu,ZOU Yun-ping. Research on the Insulation On-line Monitoring of Single-core XPLE Cable Metal Sheath[J]. High Voltage Apparatus, 2006, 42(2): 90-92 |
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| Authors: | ZHOU Zhi-cheng HE Jun-jia CHEN Jun-wu ZOU Yun-ping |
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| Affiliation: | CEEE of Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | The insulation performance of single-core XLPE cable metal sheath concerns the safe operation of the cable. In this paper, the grounding model of single-core XLPE cable metal sheath is analyzed, and sheath current method is proposed for on-line monitoring the insulation performance of single-core XLPE cable metal sheath. The testing results show that value of sheath current is closely related to insulation performance of metal sheath. Thus the criterions of "absolute value of sheath current" and "relative variable of sheath current" are proposed. Operation in the field shows that the on-line monitoring method can monitor the insulation performance of single-core XLPE cable metal sheath and enhance the reliability of cable. |
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| Keywords: | single-core XPLE cable metal sheath on-line monitoring sheath current method |
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