TY - GEN
T1 - The influence of T-shaped structure on partial discharge radiated electromagnetic wave propagation in GIS
AU - Li, Tianhui
AU - Rong, Mingzhe
AU - Wang, Xiaohua
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/1/5
Y1 - 2016/1/5
N2 - When ultra-high-frequency (UHF) method is applied in partial discharge (PD) detection for GIS, the propagation and rules of electromagnetic (EM) wave need to be understood clearly for conducting diagnosis and assessment about the real insulation status. The preceding researches are mainly concerning about the radial component of electromagnetic (EM) wave, but the propagation of the components in axial and radial directions and that perpendicular to the radial direction of the GIS tank are rarely considered. So in this research, in order to clarify the propagation process and improve the utilization of UHF technique in PD diagnosis, the propagation characteristics of EM wave in different directions in a 252 kV GIS with T-shaped structure (TS) are profoundly investigated. The attenuation rules of the peak to peak value (Vpp) and cumulative energy are concluded. According to the property of electric field distribution and attenuation curves of the UHF signal, the influence of T-shaped structure is analyzed. This paper discusses the propagation mechanism of UHF signal in T-shaped tank, which provides a better understanding of the PD propagation process as well as some referential significance towards the utilization of UHF technique.
AB - When ultra-high-frequency (UHF) method is applied in partial discharge (PD) detection for GIS, the propagation and rules of electromagnetic (EM) wave need to be understood clearly for conducting diagnosis and assessment about the real insulation status. The preceding researches are mainly concerning about the radial component of electromagnetic (EM) wave, but the propagation of the components in axial and radial directions and that perpendicular to the radial direction of the GIS tank are rarely considered. So in this research, in order to clarify the propagation process and improve the utilization of UHF technique in PD diagnosis, the propagation characteristics of EM wave in different directions in a 252 kV GIS with T-shaped structure (TS) are profoundly investigated. The attenuation rules of the peak to peak value (Vpp) and cumulative energy are concluded. According to the property of electric field distribution and attenuation curves of the UHF signal, the influence of T-shaped structure is analyzed. This paper discusses the propagation mechanism of UHF signal in T-shaped tank, which provides a better understanding of the PD propagation process as well as some referential significance towards the utilization of UHF technique.
KW - Gas insulated switchgear (GIS)
KW - UHF
KW - electromagnetic wave
KW - partial discharge (PD)
KW - propagation characteristic
UR - https://www.scopus.com/pages/publications/84962157721
U2 - 10.1109/TENCON.2015.7372760
DO - 10.1109/TENCON.2015.7372760
M3 - 会议稿件
AN - SCOPUS:84962157721
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
BT - TENCON 2015 - 2015 IEEE Region 10 Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th IEEE Region 10 Conference, TENCON 2015
Y2 - 1 November 2015 through 4 November 2015
ER -