直流斜坡电压叠加下电子束辐照XLPE薄膜的高场耗散电流波形

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI:10.1109/CEIDP.1997.634580

K. Tohyama, T. Tokoro, S. Mitsumoto, M. Nagao, M. Kosaki

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引用次数: 1

摘要

为了研究交联对聚乙烯高场介电性能的影响，采用不同凝胶组分的样品，对电子束(EB)辐照交联聚乙烯(IR-XLPE)薄膜在90/spl℃下的交流耗散电流波形进行了观察。90/spl℃时的介电性能不仅与凝胶组分有关，还与膜在EB辐照侧的位置有关。结果表明，电场、温度和IR-XLPE薄膜的凝胶分数对高温区域的移动载流子有较大的影响。采用不同凝胶分数的IR-XLPE薄膜，观察了交直流电场叠加作用下的交流耗散电流波形。电子束辐照侧第20、30和40个样品的耗散电流波形受外加电压直流分量即极性和幅值的影响较大。

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High-field dissipation current waveforms in e-beam irradiated XLPE film superposed by DC ramp voltage

In order to investigate the influence of crosslinking on high field dielectric properties of polyethylene, the observations of AC dissipation current waveforms of electron beam (EB) irradiated crosslinked polyethylene (IR-XLPE) films at 90/spl deg/C were carried out by using the samples with different gel fractions. The dielectric property at 90/spl deg/C depends not only on the gel fraction but also on the position of film from EB irradiation side. It might be indicated that the mobile carrier in high temperature region is strongly affected by electric field, temperature and the gel fraction of IR-XLPE film. AC dissipation current waveforms under the superposition of AC and DC electric field were observed by using IR-XLPE films with different gel fractions. The dissipation current waveforms of the 20th, 30th and 40th samples from the electron beam irradiation side were strongly affected by the DC component of applied voltage, namely its polarity and magnitude.

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IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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