南方电网技术2016，Vol.10Issue(9)：61-68,8.DOI:10.13648/j.cnki.issn1674-0629.2016.09.010
加装增爬伞对±800 kV特高压直流分压器内外场强的影响
Effect of Adding Creepage Extender on Internal and External Electric Field Strength of ± 800 kV UHVDC Voltage Divider
石延辉 1陆昶安 1何平 1盛康1
作者信息
- 1. 南方电网超高压输电公司广州局，广州510663
- 折叠
摘要
Abstract
Adding creepage extender is currently recognized as an effective measure for reducing the occurrence of rain flashover of external insulation. Combining with the 800 kV UHVDC voltage divider model of an existing UHVDC converter station,the electric potentials and electric field distributions of installing creepage extender in different position respectively in clean,wet dirt condition are simulated and analyzed,simulation results show that the electric field strengths are increased near the high-voltage end of the DC volt-age divider after installing creepage extender,and different installation positions have a little effect on the internal electric field distribu-tion,which is 5% higher when creepage extender are added on its internal RC node rather than on upper or lower ends of the node.关键词
直流分压器/特高压直流/湿污状态/增爬伞/内外场强分布Key words
DC voltage divider/UHVDC/wet dirt condition/creepage extender/distribution of internal and external electric field strength分类
信息技术与安全科学引用本文复制引用
石延辉,陆昶安,何平,盛康..加装增爬伞对±800 kV特高压直流分压器内外场强的影响[J].南方电网技术,2016,10(9):61-68,8.
