| 纳秒级高压脉冲下变压器油中沿面闪络特性的实验研究 |
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| 引用本文： | 王珏,邵涛,严萍,黄文力,张适昌,孙广生.纳秒级高压脉冲下变压器油中沿面闪络特性的实验研究[J].高压电器,2005,41(1):1-3. |
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| 作者姓名： | 王珏 邵涛 严萍 黄文力 张适昌 孙广生 |
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| 作者单位： | 中国科学院电工研究所,北京,100080;中国科学院电工研究所,北京,100080;中国科学院研究生院,北京,100080 |
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| 基金项目： | 国家重点自然科学基金项目(50437020)，国家863计划项目 |
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| 摘 要： | 介绍了影响固体绝缘材料在变压器油中沿面放电特性的主要因素。分别进行了变压器油中尼龙6,有机玻璃在不同脉冲宽度、脉冲速度和不同电极夹角下沿面放电特性的实验研究,并且与直流、工频和雷电波条件下的沿面放电情况进行了比较。实验发现,相对于直流、工频和雷电波条件,纳秒级脉冲下材料在变压器油中的沿面击穿场强会大幅度的提高。在试样与电极夹角约45°时,绝缘材料的沿面击穿场强最高。对重频纳秒脉冲作用下材料在变压器油中的沿面闪络特性做了初步的实验。
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| 关 键 词： | 纳秒脉冲 变压器油 沿面放电 闪络 |
| 文章编号： | 1001-1609(2005)01-0001-03 |
| 修稿时间： | 2004年8月30日 |
Experimental Study on Dielectric Surface Flashover under Nanosecond Pulse in Transformer Oil |
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| WANG Jue,SHAO Tao,YAN Ping,HUANG Wen-li,ZHANG Shi-chang,SUN Guang-sheng.Experimental Study on Dielectric Surface Flashover under Nanosecond Pulse in Transformer Oil[J].High Voltage Apparatus,2005,41(1):1-3. |
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| Authors: | WANG Jue SHAO Tao YAN Ping HUANG Wen-li ZHANG Shi-chang SUN Guang-sheng |
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| Affiliation: | WANG Jue1,SHAO Tao1,2,YAN Ping1,HUANG Wen-li1,2,ZHANG Shi-chang1,SUN Guang-sheng1 |
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| Abstract: | In this paper, main influential factors on dielectric surface discharge in transformer oil are discussed. Many experiments are carried out in the lab. The surface discharge characteristics of nylon 6 and organic glass in transformer oil under different conditions such as pulse width, pulse repetition rate and angle between electrode and sample, have been obtained. It is indicated that electric field stress of surface flashover under nanosecond pulse is much more higher than that under DC and AC. When angle between electrode and sample is around 45°, the surface flashover stresses of nylon 6 and organic glass are the highest. Some experiments under repetitive nanosecond pulses are performed, too. |
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| Keywords: | nanosecond pulse transformer oil surface discharge flashover |
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