高压电器2012，Vol.48Issue(10)：88-93,6.
开关柜局部放电暂态对地电压的分布特性研究
Research of Transient Earth Voltage Distribution Characteristics by Partial Discharge in Switchgears
陈庆祺 1张伟平 1刘勤锋 1马双 2刘诣 2张鸿平2
作者信息
- 1. 广东电网公司东莞供电局,东莞523000
- 2. 国网电力科学研究院,武汉430000
- 折叠
摘要
Abstract
TEV (transient earth voltage)technology become more and more important in HV switchgear PD detection, so, the method on how to better utilize TEV in scientific research is a priority. Based on research results on TEV principle, simulation and analysis the TEV of metal cabinet by FDTD,and switchgear partial discharge measurement on the simulation results,both with good consistency of the method describe in the simulation to obtain the feasibility of switchgear TEV signal. Based on the above method, the outer surface of a typical layout of HV switchgear forty-two test points TEV signal simulation analysis, the results show that: TEV detection signal amplitude with distance from the source point and the incentive decreases with an increase; Detection point near cracks and discontinuities, can be measured larger TEV signal; Electromagnetic interference between different switchgear is small. Switchgear for the TEV method of partial discharge detection and better use of provides a theoretical basis.关键词
高压开关柜/局部放电/暂态对地电压/时域有限差分法/电磁波Key words
high voltage switchgear/ partial discharge/ transient earth voltage/ finite-difference time-domain method/ electromagnetic wave分类
信息技术与安全科学引用本文复制引用
陈庆祺,张伟平,刘勤锋,马双,刘诣,张鸿平..开关柜局部放电暂态对地电压的分布特性研究[J].高压电器,2012,48(10):88-93,6.
