Results 81 to 90 of about 595 (205)

Detection of characteristic component H2S in SF6 and SF6/N2 mixture using cavity ring‐down spectroscopy

High Voltage, Volume 10, Issue 1, Page 88-94, February 2025.
Abstract A high‐sensitivity cavity ring‐down spectroscopy gas detection system with integrated optical components and embedded microprocessor units is presented for the detection of hydrogen sulfide (H2S) in sulphur hexafluoride (SF6) and its mixture with nitrogen (N2).
Anhao Jiang, Chaohai Zhang, Min Zhu, Xiaoxing Zhang   +3 more
wiley   +1 more source

The Decomposition Pathways of C₄F₇N/CO₂ Mixtures in the Presence of Organic Insulator Vapors

IEEE Access
As a potential substitute for SF6, C4F7N/CO2 mixture gas has a broad application prospect in gas insulated substation (GIS) busbars and high-voltage circuit breakers.
Sijie Liu, Xiaolong Li, Wen Wang, Zhenxin Geng, Ying Lin   +4 more
doaj   +1 more source

Study on the optimization of arc extinguishing chamber structure of C4F7N mixed gas circuit breaker [PDF]

AIP Advances
As power-grid voltage levels continue to increase, the structural design and interruption performance of arc-extinguishing chambers in high-capacity C4F7N gas circuit breakers require further optimization.
Yongjie Nie, Daoyuan Chen, Bochen Li, Ke Wang   +3 more
doaj   +1 more source

Mechanism of O$_2$ influence on the decomposition process of the eco-friendly gas insulating medium C$_4$F$_7$N/CO$_2$

The C$_4$F$_7$N/CO$_2$/O$_2$ gas mixture is the most promising eco-friendly gas insulation medium available. However, there are few studies on the mechanism of the influence of the buffer gas O2 ratio and its role in the decomposition characteristics of ...
Brault, Pascal, Chu, Yitian, Hong, Dunpin, Li, Yi, Tian, Shuangshuang, Xiao, Song, Ye, Fanchao, Zhang, Xiaoxing   +7 more
core   +2 more sources

Study of Environmentally Friendly Arc Extinguishing Media as Alternatives to Sf6 in High-Voltage Circuit Breakers [PDF]

, 2022
Работа посвящена сравнению характеристик элегаза и альтернативных экологичных ему смесей в качестве изоляционных сред в высоковольтных выключателях.
Demkovich, V., Popovtsev, V., Демкович, В. В., Поповцев, В. В.   +3 more
core  

Characteristics of perfluoromethyl vinyl ether: A new eco‐friendly alternative gas for SF6

High Voltage, Volume 9, Issue 3, Page 509-517, June 2024.
Abstract The exploration of eco‐friendly insulating gas to substitute the most potent greenhouse gas sulphur hexafluoride (SF6) has consistently garnered significant attention. Herein, the authors evaluated the feasibility of utilising perfluoromethyl vinyl ether (PMVE, C3F6O) as a new branch of eco‐friendly insulating gas for the first time.
Song Xiao, Yijiang Chen, Mingjun Tang, Shuangshuang Tian, Haoran Xia, Yifan Wang, Ju Tang, Yi Li, Xiaoxing Zhang   +8 more
wiley   +1 more source

Investigating the Influence of O₂ on Surface Flashover Characteristics and Gas-Solid Interface Compatibility in C₄F₇N/CO₂ Mixtures Under Negative DC Voltage

IEEE Access
Previous studies have indicated that the addition of O2 can enhance the insulation performance and chemical stability of C4F7N/CO2 mixed gases during partial discharge to a certain extent.
Dongwei Sun, Feng Wang, Kaibin Liang, Lipeng Zhong, Heng Yi, Nian Tang, Zhi Li   +6 more
doaj   +1 more source

Study on the thermal decomposition characteristics of C(4)F(7)N–CO(2) mixture as eco-friendly gas-insulating medium

High Voltage, 2019
The authors explored the thermal decomposition characteristics of perfluoroisobutyronitrile–carbon dioxide (C(4)F(7)N–CO(2)) gas mixture as eco-friendly dielectric medium.
Yi Li, Xiaoxing Zhang, Xiaoxing Zhang, Ji Zhang, Cheng Xie, Xianjun Shao, Ziling Wang, Dachang Chen, Song Xiao   +8 more
doaj   +1 more source

2-D and 3-D Radiative Transfer Calculation in Arc Plasmas Burning in Environmentally Friendly High-Voltage Switchgear [PDF]

This contribution reports on the radiation transfer calculation in high-voltage switching arcs burning in CO2+O2 and C4F7N+CO2 in a self-blast circuit breaker.
Esmaeili, S, Yan, JD, Zhang, K
core   +1 more source

New trends in field of the Power Circuit Breakers [PDF]

, 2023
SF6 je silný skleníkový plyn, který se používá jako izolační a zhášecí médium v elektrických systémech VN a vyšších. Vzhledem k jeho s vysokému potenciálu globálního oteplování roste zájem o vývoj technologií bez-SF6 pro elektrická energetické zařízení ...
Alexandru Macovei
core