Transient Simulation Model for Electric Field Distribution in Cable Joint
作者单位：Guagnzhou Power Supply CSG North China Electric Power University
会议日期：2019年
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：supported by the Science and Technology Project of China South Power Gird Co. Ltd. (GZHKJXM20180140)
关 键 词：Cable joint switching impulse voltage electric field intensity distribution finite element method
摘 要：The analysis of the impact of the switching impulse voltage on the internal electric field of the cable joint plays a key role in studying the breakdown of the *** this paper,the finite element method is used to simulate the transient electric field of the axisymmetric model of the cable *** changing the closing moment,the influence of different closing moments on the electric field intensity distribution is studied and *** results show that under the switching voltage excitation,when the closing moment at t0=nT,the electric field distribution in the cable joint is consistent with the steady state without ***,the point near the root of the stress cone will distort when the switch is closed,the closing moment is at 7.5 ms,which is the most *** closing time is at 10 ms,has the greatest influence on the electric field intensity distribution in the cable joint,especially the stress cone end,the bottom of the high voltage shield and the position near the high voltage conductor in the air domain.