电测与仪表2025，Vol.62Issue(11)：80-87,8.DOI:10.19753/j.issn1001-1390.2025.11.009
1100 kV交流变压器胶浸纤维套管电容芯子及均压罩参数优化
Parameter optimization of 1100 kV AC transformer resin-impregnated fiber bushing capacitor core and grading shield
摘要
Abstract
High-voltage bushings are an important part of transformers.Resin-impregnated fiber bushings have been popularly used in recent years because of their flame-retardant and explosion-proof characteristics,but there is in-sufficient research on the optimal design of their structural parameters.A finite element model of resin-impregnated fiber bushing of 1 100 kV alternating current transformer was built based on the primary structural parameters.The electric field distribution of the capacitor core and the grading shield was analyzed,the influence of the structural dimensions of the grading shield on its maximum electric field intensity was studied,and a design scheme of the ca-pacitor core and grading shield of the bushing was put forward considering the actual production process and work requirements.The results show that,compared with the primary scheme,the maximum electric field intensity at the end of the plate of the optimized capacitor is decreased by 16.6％,the maximum electric field intensity in the ra-dial direction is decreased by 8.9％,and the number of layers of the plate is decreased by 9 layers.The maximum electric field intensity of the optimized grading shield is 7.725 kV/mm,and the structure of the grading shield is significantly reduced.The research results can be used to guide the structural design of resin-impregnated fiber bushings for 1 100 kV AC transformers.关键词
有限元法/胶浸纤维套管/电场分布/电容芯子/均压罩Key words
finite element method/resin-impregnated fiber bushing/electric field distribution/capacitive core/grading shield分类
动力与电气工程引用本文复制引用
杨雁飞,邱逸群,黄道春,邓永清,兰贞波,邓建钢..1100 kV交流变压器胶浸纤维套管电容芯子及均压罩参数优化[J].电测与仪表,2025,62(11):80-87,8.基金项目
湖北省重点研发计划项目(2021BAA182) （2021BAA182）
