| 变压器典型油纸绝缘局部放电特性 |
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| 引用本文： | 杨眉,李剑,杨丽君,李莉,宁佳欣.变压器典型油纸绝缘局部放电特性[J].重庆大学学报(自然科学版),2007,30(2):46-49. |
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| 作者姓名： | 杨眉 李剑 杨丽君 李莉 宁佳欣 |
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| 作者单位： | 重庆大学,高电压与电工新技术教育部重点实验室,重庆,400030;中电国华电力股份有限公司,北京热电分公司,北京,100025 |
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| 摘 要： | 根据对变压器油纸绝缘内部常见缺陷的分析,制作了5种油纸绝缘缺陷放电模型,并在不同温度和电压下进行老化实验,用以模拟变压器中的实际缺陷.研究了不同类型放电的发展过程,分析了温度和电压对油纸绝缘局部放电的影响.对应于不同类型的放电和同一放电模型的不同放电阶段,放电的灰度图谱都存在较大差异,因此,可以通过灰度图谱来区分不同的放电类型和放电阶段.所得结果为进一步研究变压器局部放电模式识别和绝缘老化特征提供了实验依据.
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| 关 键 词： | 局部放电 油纸绝缘 灰度图谱 老化 |
| 文章编号： | 1000-582X(2007)02-0046-04 |
| 修稿时间： | 2006-09-30 |
Partial Discharge in Oil-paper Insulation of Transformer |
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| YANG Mei,LI Jian,YANG Li-jun,LI Li,NING Jia-xin.Partial Discharge in Oil-paper Insulation of Transformer[J].Journal of Chongqing University(Natural Science Edition),2007,30(2):46-49. |
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| Authors: | YANG Mei LI Jian YANG Li-jun LI Li NING Jia-xin |
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| Institution: | 1. Key Laboratory of High Voltage Engineering and Electrical New Technology, Ministry of Education, Chongqing University, Chongqing 400030, China; 2. CLD Guohua Beijing Power, Beijing 100025, China. |
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| Abstract: | Based on the analysis of defect in oil-paper insulation of transformer, 5 corresponding PD models were made to simulate the actual defects existed in transformers. Aging experiment was carried out at different temperature and test voltage. The developing process of different types of PD was studied and the influence of temperature and voltage on PD in oil-paper insulation, were analyzed. Gray images show differences for different typrs of PD or one type of PD at different precedures. Gray images can be used to recognize PD patterns and discharge stage. The research resalts coutribute for further research on PD pattern recognition and insulation aging of transformer. |
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| Keywords: | Partial discharge oil-paper insulation gray images aging |
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