Results 1 to 10 of about 43,708 (186)

Unsteady heat transfer of long gas insulated transmission lines in tunnel: Model and analysis [PDF]

Heliyon
The temperature of the cable core and cable casing is crucial for the safety and efficiency of the transmission system. Accurately predicting the distribution and variation of the transmission temperature field in the gas insulated transmission lines ...
Guo Li, Wenhui Zeng, Jiayuan Fan, Luo Yi, Wenjie Xu   +4 more
doaj   +2 more sources

Metal particle contamination in gas-insulated switchgears/gas-insulated transmission lines

CSEE Journal of Power and Energy Systems, 2021
Jian Wang, Qi Hu, Yanan Chang, Jingrui Wang, Ruixue Liang, Youping Tu, Chuanyang Li, Qingmin Li   +7 more
doaj   +2 more sources

Environment-friendly insulating gases for HVDC gas-insulated transmission lines

CSEE Journal of Power and Energy Systems, 2021
Geng Chen, Youping Tu, Cong Wang, Jue Wang, Zhikang Yuan, Guoming Ma, Jian Wang, Bo Qi, Chuanyang Li   +8 more
doaj   +3 more sources

Field Optimization and Electrostatic Stress Reduction of Proposed Conductor Scheme for Pliable Gas-Insulated Transmission Lines

Applied Sciences, 2019
The implementation of stranded conductors in flexible gas-insulated transmission lines (FGILs) requires field intensity minimization as well as field irregularity suppression in order to avoid dielectric breakdown.
Muhammad Junaid Alvi, Tahir Izhar, Asif Ali Qaiser, Hafiz Shafqat Kharal, Adnan Safdar   +4 more
doaj   +2 more sources

Influence of Conducting Particle on DC Flashover Characteristics and Tracking Property of GIS/GIL Insulator

IEEE Access, 2022
Flashover at gas/insulator interface acts as a vital challenge to the safe and stable operation of gas-insulated system especially when involved with surface metallic particle.
Xiaolong Li, Chen Cao, Xin Lin
doaj   +1 more source

Seismic Performance Evaluation and Retrofit Strategy of Overhead Gas-Insulated Transmission Lines

Buildings, 2023
The overhead gas-insulated transmission line (GIL) in ultra-high-voltage converter stations, distinct from traditional buried pipelines, demands a thorough investigation into its seismic behavior due to limitations in existing codes.
Xiaoxuan Li, Qiang Xie, Jiayi Wen
doaj   +1 more source

Experimental Results of Partial Discharge Localization in Bounded Domains

Sensors, 2021
This work presents a novel diagnostic method to localize Partial Discharges (PDs) inside Medium Voltage (MV) and High Voltage (HV) equipment. The method is well suited for that equipment presenting a bounded domain with fixed Boundary Conditions (BCs ...
Luca Perfetto, Gabriele D’Antona
doaj   +1 more source

A Review on Real-Size Epoxy Cast Resin Insulators for Compact High Voltage Direct Current Gas Insulated Switchgears (GIS) and Gas Insulated Transmission Lines (GIL)—Current Achievements and Envisaged Research and Development

Energies, 2020
Due to the ever-increasing demand for electricity in the one hand and the environmental constraints to use clean energy on the other hand, the global production of energy from remote renewable sources, particularly from large hydropower plants and ...
Nabila Zebouchi, Manu. A. Haddad
doaj   +1 more source

Method of GIL partial discharge localization based on natural neighbour interpolation and ECOC‐MLP‐SVM using optical simulation technology

High Voltage, 2021
Partial discharge (PD) is one of the main causes rendering the deterioration of the insulation state in gas‐insulated transmission line (GIL). Accurate and timely localization of the PD source is essential to ensure the safe and stable operation of the ...
Yiming Zang, Yong Qian, Hui Wang, Antian Xu, Gehao Sheng, Xiuchen Jiang   +5 more
doaj   +1 more source

Effects of volume and surface conductivity on the surface charge and electric field characteristics of the tri‐post insulator in SF6‐filled ± 500 kV DC‐GIL

IET Generation, Transmission & Distribution, 2023
Herein, the surface charge characteristics of a tri‐post insulator in a ± 500 kV direct current gas‐insulated transmission lines (DC‐GIL) filled with SF6 are thoroughly studied.
Xiaolong Li, Guangkuo Zhang, Chen Cao, Yan Shi, Jie Li, Wenzhi Chang   +5 more
doaj   +1 more source