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Severity Assessment of Gas-Insulated Switchgear/Gas-Insulated Transmission Lines Partial Discharge Based on Adaptive Clustering

2025 International Conference on Automation, Electrical Control Systems and Equipment (AECSE)
Partial discharge (PD) induced by insulation defects in gas-insulated switchgear/gas-insulated transmission lines (GIS/GIL) is a primary cause of equipment failure.
Shu Niu   +6 more
semanticscholar   +1 more source

Discussion of "Insulation coordination for gas-insulated transmission lines (GIL)" and closure

IEEE Transactions on Power Delivery, 2001
A. Sabot comments on the paper by O. Volvker et al. (see ibid., vol.16, no.1, p.122-30, 2001). The author discusses three points: reference to the IEC standard 60071-2, the overvoltage calculations, and the GIL withstand voltage.
A. Sabot, O. Volcker, H. Koch
openaire   +1 more source

Significantly suppressing metal particle-induced surface charge accumulation of spacers in DC gas-insulated power transmission lines

Journal of Physics D: Applied Physics, 2022
In this letter, we report functions of surface roughening and fluorination on suppressing linear metal particle-induced spacer surface charge accumulation.
Yun-Qi Xing   +11 more
semanticscholar   +1 more source

Surface Charging Physics of the Basin Insulator in ±320-kV Gas-Insulated Transmission Lines

IEEE transactions on dielectrics and electrical insulation
Surface charge accumulation is a key factor that must be considered in the design of dc gas-insulated transmission line (GIL) insulators. In this letter, the insulator surface potential distribution of a ±320-kV GIL is measured under different voltage ...
Fangwei Liang   +6 more
semanticscholar   +1 more source

Electromagnetic Response Analysis of Gas-Insulated Transmission Lines Utilizing Cross-Dimensional Multi-Physics Coupling

IEEE Transactions on Power Delivery
The abnormal electromagnetic responses of Gas-Insulated Transmission Lines (GILs) pose a significant risk to equipment and grid safety; yet, the traditional full 3D electromagnetic analysis method is limited by computational efficiency and structural ...
Xu Zhang   +5 more
semanticscholar   +1 more source

An Ultrasonic Detection Method for Interface Defects of Three Post Insulators in Gas-insulated Transmission Lines

IEEE PES Asia-Pacific Power and Energy Engineering Conference, 2020
Interface defects induced during the manufacturing process, transportation and assembly in three post insulators would affect the safe and stable operation of gas insulated transmission lines (GIL).
Wei-Guo Li   +6 more
semanticscholar   +1 more source

Underground links by gas insulated transmission lines

APSCOM 2000 - 5th International Conference on Advances in Power System Control, Operation and Management, 2000
The concern to reduce the number of increasingly contested power transmission lines has led utilities and manufacturers as ALSTOM to search for new underground solutions. Today, the penetration of power lines into the heart of large cities is seriously hindered by the density of population and urban expansion.
openaire   +1 more source

Analysis on Common Faults of Gas Insulated Transmission Line

2020 4th International Conference on HVDC (HVDC), 2020
Gas-insulated metal-enclosed transmission line (GIL) is a new type of transmission equipment, which can be used to connect overhead line, GIS, transformers and switchgear in power plants. With the development of UHV transmission projects in China, the amount of GIL projects is increasing year by year, while its faults have been paid more attentions by ...
Yuyao Li   +5 more
openaire   +1 more source

Seismic Response Analysis of The Bent Section of Gas-Insulated Metal-Enclosed Transmission Lines

2025 2nd international conference on DC technologies and systems (DCTS)
To study the seismic performance of gas-insulated metal-enclosed transmission lines, a bent section of gas-insulated metal-enclosed transmission line (GIL) in a certain UHV converter station was selected as the research object. Considering the constraint
Yixun Zhang, Qiang Xie
semanticscholar   +1 more source

A Simulation Research on Diffusion Processes of Discharging Decomposition Products of C4F7N/CO2 in Gas Insulated Transmission Lines

IEEE International Conference on High Voltage Engineering and Application, 2020
To research diffusion processes of discharging decomposition products of C4F7N/CO2in gas insulated transmission lines (GIL) and clarify the impact of diffusion on insulation diagnosis, a diffusion model was built up according to Fick's law.
R. Qiu   +5 more
semanticscholar   +1 more source

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