WANG YAN, TAN XIANGYU, CHEN JING, et al. Analysis of the Influence of Electric Field on the Insulation of Dry-type Air-core Reactor. [J]. Power capacitor & reactive power compensation, 2015, 36(6): 78-81.
WANG YAN, TAN XIANGYU, CHEN JING, et al. Analysis of the Influence of Electric Field on the Insulation of Dry-type Air-core Reactor. [J]. Power capacitor & reactive power compensation, 2015, 36(6): 78-81. DOI: 10.14044/j.1674-1757.pcrpc.2015.06.017.
Analysis of the Influence of Electric Field on the Insulation of Dry-type Air-core Reactor
摘要
近年来干式空心并联电抗器在运行过程中事故频发
威胁电力系统安全运行
也造成了较大的经济损失。干式空心电抗器的电场强度过强
会让干式空心电抗器的空气间隙发生沿面放电
一旦发生空气间隙局部放电
会腐蚀聚酯薄膜绝缘
引起绝缘劣化
进一步造成绝缘击穿
威胁着电力系统的安全运行。因此
通过有限元仿真软件对1台BKDK-20000/35型干式空心电抗器进行模型搭建
并对其进行数值计算
分析其电场分布情况
研究电场对干式空心电抗器绝缘性的影响。
Abstract
In recent years
the frequent fault of dry-type air-core shunt reactor in the operation not only threatens safe operation of power system
but also causes great economic losses. Excessive strong electric field strength of the dry hollow reactor will lead surface discharge of the reactor sphere gap and
once in the event of partial discharge of sphere gap
the insulation of polyester film is corroded
causing further dielectric breakdown and threatening safe operation of power system. Therefore
a model of one unit of BKDK-20000/35 dry-type air-core reactor is set up by way of finite element simulation software and its numerical calculation so to analyze its electric field distribution and study the influence of electric field on the insulation of air-core reactor.