Results 281 to 290 of about 7,162,114 (343)

Experimental and numerical study on formation of interface separation and interfacial dielectric strength of GIL insulator

IEEE Transactions on Dielectrics and Electrical Insulation, 2019
As the transmission capacity of gas insulated transmission line (GIL) increases, the synergistic improvement in dielectric and mechanical strengths of GIL insulators is urgently needed for the development of advanced power systems.
He Li, Qing Wang
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Electric field regulation and parameter optimization of surface nonlinear conductivity spacer for 500 kV DC-GIL

IEEE transactions on dielectrics and electrical insulation, 2020
In this paper, the surface nonlinear conductivity (SNC) spacer is proposed to regulate the electric field in a 500 kV DC-GIL, whose effects are verified by assigning a temperature gradient, a rough electrode, a metal particle and a polarity reversal ...
H. C. Liang, B. Du, J. Li
semanticscholar   +1 more source

Mechanical Stress Distribution and Reliability Analysis of GIL Tri-post Insulator

International Conference on Electrical Materials and Power Equipment, 2021
Tri-post insulator is the key insulation component of UHV and EHV gas insulated transmission pipeline (GIL), and its mechanical reliability is directly related to the operation safety of GIL.
Songtao Liu, Jin Li, B. Du, Hucheng Liang, L. Hao, Yaxiang Wang   +5 more
semanticscholar   +1 more source

The influence of surface charge accumulation on flashover voltage of GIS/GIL basin insulator under various voltage stresses

International Journal of Electrical Power & Energy Systems, 2019
Under AC, DC and switching impulse voltages, the surface charges accumulated on the basin insulators of Gas Insulated Substation (GIS) or Gas Insulated Metal Enclosed Transmission Line (GIL) could distort local electric field and even reduce the surface ...
B. Qi, C. Gao, Chengrong Li, Jun Xiong
semanticscholar   +1 more source

Prediction and analysis of replaceable scraper wear of slurry shield TBM in dense sandy ground: A case study of Sutong GIL Yangtze River Crossing Cable Tunnel

, 2020
Prediction and analysis of cutting tool wear in dense sandy ground is important for improving the working performance of slurry shield TBM, especially for long-distance cross-river tunnel. Appropriate prognosis model can not only improve the construction
Tang Shaohui, Xiao-Ping Zhang, Quansheng Liu, Chen Peng, Sun Xutao, Lei Sun, Yang Dai, Songjie Chen   +7 more
semanticscholar   +1 more source

High-Resolution Temperature Distribution Measurement of GIL Spacer Based on OFDR and Ultraweak FBGs

IEEE Transactions on Instrumentation and Measurement, 2020
The temperature distribution on the gas-insulated line (GIL) spacer affects surface charge accumulation. However, the spacer temperature distribution is hard to measure because the conventional electric sensors are large dimensions, hard to multiplex ...
G. Ma, Hong-yang Zhou, Yabo Li, Hanchi Zhang, W. Qin, Cheng-Rong Li, Chao Yan   +6 more
semanticscholar   +1 more source

A novel sight for understanding surface charging phenomena on downsized HVDC GIL spacers with non-uniform conductivity

, 2020
Surface charging phenomena on DC GIL spacers is a complicated process affected by lots of factors, among which surface conductivity is an important dielectrics parameter. In this study, experimental and theoretical research are carried out to investigate
Jianyi Xue, Junhong Chen, Junhao Dong, Guangyu Sun, Jun-bo Deng, Guanjun Zhang   +5 more
semanticscholar   +1 more source

JOSÉ MARÍA GIL-ROBLES GIL-DELGADO

2021
  +5 more sources

Electrical field distribution along SG6/N2 filled DC-GIS/GIL epoxy spacer

IEEE transactions on dielectrics and electrical insulation, 2018
The flashover faults due to the accumulation of surface charge have restricted the further development of spacers in HVDC GIS/GIL transmission systems.
B. Du, H. C. Liang, J. Li, Z. Ran
semanticscholar   +1 more source

Failure mode and effects analysis using Dempster-Shafer theory and TOPSIS method: Application to the gas insulated metal enclosed transmission line (GIL)

Applied Soft Computing, 2018
Failure mode and effects analysis (FMEA) as a useful tool in safety and reliability analysis to identify and eliminate known or potential failures from the process of product design, development and production has been widely used in a variety of ...
Zhen Wang, Jianmin Gao, Rongxi Wang, Kun Chen, Zhiyong Gao, Yao-Lin Jiang   +5 more
semanticscholar   +1 more source