22.9kV交联聚乙烯电缆劣化特性试验研究依赖于化合物和固化过程

Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93) Pub Date : 1993-10-17 DOI:10.1109/CEIDP.1993.378876

J. Koo, H. Kim, K. Kim, Y. Ann

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引用次数: 0

摘要

对22.9kV交联聚乙烯(XLPE)电力电缆的老化特性进行了系统的比较研究，其老化特性可能不仅取决于不同的固化工艺，还取决于不同的抗氧化添加剂。样品电缆在60 Hz和41kV (3Uo)下老化，在导体和半导体层之间引入70/spl℃的热水，在水浴中长达8760小时。然后，对这些老化电缆的交流击穿特性进行了测量。在绝缘材料的显微分析中，水树、结晶度和氧化水平是用切成径向截面的切片试样来测量的。

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An experimental investigation on the degradation characteristics of 22.9kV XLPE cables; dependence on the compounds and curing process

Systematic investigations have been carried out to compare the aging characteristics of 22.9kV XLPE (cross-linked polyethylene) power cables which might be dependent not only on the different types of curing processes on the various antioxidant additives. Sample cables were aged at 60 Hz and 41kV (3Uo), for which hot water at 70/spl deg/C was introduced between the conductor and the semiconductive layer during up to 8760 hrs in a water bath. Afterwards, the AC breakdown characteristics of these aged cables were measured. In a microscopic analysis of the insulating materials, water trees, crystallinity, and oxidation level were measured using a sliced specimen cut into radial sections.<>

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Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)

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