Results 41 to 50 of about 4,696 (224)

Comparison of Dielectric Recovery After Arc Burning in SF6 Gas and Its Potential Alternatives

High Voltage, EarlyView.
ABSTRACT Although sulphur hexafluoride (SF6) exhibits exceptional insulating properties, it is a potent greenhouse gas. Therefore, studying alternatives to SF6 is critical for developing environmentally friendly high‐voltage electrical equipment.
Ziqi Liu, Hao Sun, Yi Wu, Mingzhe Rong, Zeyuan Luo   +4 more
wiley   +1 more source

The extraction method of evaluation index of safety insulation status of GIS equipment operation based on simplified indicators

Diance yu yibiao
Extracting the characteristic indicators of SF6 gas insulated switchgear that reflects equipment insulation status to evaluate its insulation state is the basis for safe operation.
GAO Yibo, ZHENG Zhiyao, FENG Liang, LIN Jianqin   +3 more
doaj   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

High Voltage, EarlyView.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li   +6 more
wiley   +1 more source

Investigation of Gas-Sensing Property of Acid-Deposited Polyaniline Thin-Film Sensors for Detecting H2S and SO2

Sensors, 2016
Latent insulation defects introduced in manufacturing process of gas-insulated switchgears can lead to partial discharge during long-time operation, even to insulation fault if partial discharge develops further.
Xingchen Dong, Xiaoxing Zhang, Xiaoqing Wu, Hao Cui, Dachang Chen   +4 more
doaj   +1 more source

Quantification of the performance of iterative and non-iterative computational methods of locating partial discharges using RF measurement techniques [PDF]

, 2017
Partial discharge (PD) is an electrical discharge phenomenon that occurs when the insulation materialof high voltage equipment is subjected to high electric field stress. Its occurrence can be an indication ofincipient failure within power equipment such
Alistair J. Reid, Bancroft, Brian G. Stewart, Bucher, Chiu, Coenen, El Mountassir, El Mountassir, Hikita, Ho, Hu, Judd, Lu, Mardiana, Markalous, Meijer, Miao, Moore, Othmane El Mountassir, Scott G. McMeekin, Sinaga, Steiner, Stewart, Tang, Tian, Tian, Wagenaars, Yang, Zhang, Zheng   +29 more
core   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

High Voltage, Volume 11, Issue 2, Page 317-344, April 2026.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi, Vijay K. Sood   +3 more
wiley   +1 more source

Numerical simulation on fault arc characteristics of medium voltage air medium switchgear [PDF]

AIP Advances
Based on magnetohydrodynamic theory, this paper establishes a two-dimensional axisymmetric model of a fault arc inside an enclosed medium-voltage (MV) air-insulated switchgear.
Lijun Wang, 王立军, Xinyi Liu, 刘心怡, Kexiang Huang, 黄柯翔, Tongqi Liu, 刘桐齐, Xuanrui Zhang, 张宣睿   +9 more
doaj   +1 more source

Anomaly Detection for Partial Discharge in Gas-Insulated Switchgears Using Autoencoder

IEEE Access, 2020
In this article, we propose a new anomaly detection method to detect the partial discharge in a gas-insulated switchgear. An autoencoder was used for anomaly detection and was modeled on the one-class classification problem.
Ngoc-Diem Tran Thi, The-Duong Do, Jae-Ryong Jung, Hyangeun Jo, Yong-Hwa Kim   +4 more
doaj   +1 more source

Sifat Dielektrik Campuran Gas CO2 dengan Nitrogen (N2) Dibawah Terpaan Medan Tinggi DC Polaritas Positif [PDF]

, 2017
Sulfur hexafluoride gas (SF6) is widely used in the power electrical system such as circuit breaker, gas insulated switchgear (GIS) and gas insulated line (GIL).
Anderson, M. (Michael), Murdiya, F. (Fri)   +1 more
core  

Research on Power Frequency Insulation Properties and Configurations of CF3SO2F Gas Mixture for Industrial Applications

High Voltage, Volume 11, Issue 2, Page 556-563, April 2026.
ABSTRACT The breakdown characteristics of the novel eco‐friendly insulating gas CF3SO2F are fundamental to the design of gas‐insulated equipment. In this paper, the gas mixture parameters for CF3SO2F were optimised for different ambient temperatures in order to ascertain the insulation performance and liquefaction temperature constraints.
Shubo Ren, Wenjun Zhou, Yu Zheng, Dongxin Hao, Wei Liu, Keli Gao   +5 more
wiley   +1 more source