High-field dissipation current waveform in e-beam-irradiated XLPE film at high temperature
High-field dissipation current waveform in e-beam-irradiated XLPE film at high temperature
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高温下电子束辐照 XLPE 薄膜的高场耗散电流波形
DOI：
10.1109/94.506209
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发表时间：
1996
影响因子：
3.1
通讯作者：
T. Tokoro
中科院分区：
文献类型：
--
作者：
M. Nagao;M. Kosaki;K. Tohyama;T. Tokoro
我们开发了一种检测方法的交流耗散电流波形结合快速上升的交流斜坡电压的应用作为一种新的技术，以评估高场介电性能和耗散电流波形在很短的时间范围内。该测量在电子束辐照的交联聚乙烯膜上进行。在高温下，高场tan /spl δ/和交流耗散电流与电场呈非线性关系，且耗散电流随电场减小而增大，表明电极载流子注入的贡献。高温区的耗散电流波形在半周期的前半部分出现峰值，后半部分迅速下降。这一结果可能是由于异质和家庭空间电荷的形成所造成的注入载流子从电极。
We developed a detection method of ac dissipation current waveforms combined with a fast rising ac ramp voltage application as a new technique to evaluate the high-field dielectric properties and the dissipation current waveform over a very short time range. This measurement was carried out on electron beam irradiated crosslinked polyethylene film. At high temperature the high field tan /spl delta/ and ac dissipation current show nonlinear electric field dependence and the dissipation current during decreasing field becomes larger than that during increasing field, suggesting the contribution of carrier injection from electrodes. The dissipation current waveforms in the high temperature region show the peak in the first part of each half cycle of a full waveform, and fast decrease in the latter part. This result is probably due to the hetero and home space charge formation caused by the injected carriers from the electrode.