中国电机工程学报Issue(31)：170-176,7.
复合电场下油纸（板）绝缘击穿特性及其数学模型
Breakdown Characteristics and Its Mathematical Model of Oil-pressboard Insulation Under Compound Electric Field
摘要
Abstract
In order to study the breakdown characteristics of oil-pressboard insulation under compound electric field, the typical oil-pressboard insulating structure was taken as the study object. The breakdown characteristic of typical oil-pressboard insulation was obtained under compound electric field via breakdown tests at first. Then the electric fields in oil and oil-impregnated pressboard were simulated according to the equivalent circuit. The breakdown characteristic tests of oil and oil-impregnated pressboard were carried out separately under compound electric field. On the basis of the electric field mathematical expressions of the oil and oil-impregnated pressboard, the relationship between the electric field E and AC contentηwas got, and the electric field distribution in oil and oil-impregnated pressboard was compared with their breakdown strengths. And then the breakdown voltage mathematical expressions with AC content were concluded. The results showed that the main reason why the breakdown voltage of oil-pressboard insulating structure rises before and falls later is that the electric fields in the two materials vary with the AC content and there is difference in breakdown characteristics between two materials.关键词
换流变压器/油纸绝缘/复合电场/击穿特性/电场仿真/数学模型Key words
converter transformer/oil-pressboard insulation/compound electric field/breakdown characteristics/electric-field simulation/mathematical model分类
信息技术与安全科学引用本文复制引用
陈庆国,池明赫,高源,魏新劳,王永红,张松..复合电场下油纸（板）绝缘击穿特性及其数学模型[J].中国电机工程学报,2013,(31):170-176,7.基金项目
国家重点基础研究发展计划项目(973计划)(2011CB211707)；教育部新世纪优秀人才支持计划(NCET-09-0242)；黑龙江省杰出青年基金. Project Supported by National Basic Research Program of China (2011CB211707) （973计划）
Program for New Century Excellent Talents in University (NCET-09-0242) （NCET-09-0242）
Heilongjiang Province Outstanding Youth Science Fund （）
