Results 21 to 30 of about 777 (200)

Best choice of insulation gas medium for MMGS in fast linear transformer driver

AIP Advances, 2020
Gas spark closing switch is one of the most important components for a fast linear transformer driver (FLTD). In this paper, we describe the investigation of insulation gas media for a multi-gap multi-channel gas spark closing switch.
Xuandong Liu, Xianfei Liu
doaj   +2 more sources

Assessment on gas‐polyethylene terephthalate solid interface partial discharge properties of C4F7N/CO2 gas mixture for eco‐friendly gas insulating transformer

High Voltage
The eco‐friendly insulating gas perfluoroisobutyronitrile (C4F7N) is potentially used in gas‐insulated transformers (GIT) to replace sulphur hexafluoride (SF6). However, evaluation of the long‐term insulation reliability and gas–solid interface discharge
Song Xiao, Yifan Wang, Chenhua Ren, Haoran Xia, Yue Zhao, Jingzi Qin, Xiaoxing Zhang, Yi Luo, Yi Li   +8 more
doaj   +2 more sources

The Decomposition Mechanism of C₄F₇N–Ag Gas Mixture Under High Temperature Arc

Applied Sciences
The global phase-out of sulfur hexafluoride (SF6), an insulating gas with high global warming potential (GWP), has driven the search for eco-friendly alternatives in high-voltage equipment.
Tan Liu, Yi Ding, Congrui Zhang, Xingjian Kang   +3 more
doaj   +2 more sources

Study on the effects and mechanism of temperature on the thermal decomposition characteristics of C4F7N/CO2/O2 mixed gas [PDF]

AIP Advances
To address environmental concerns arising from the potent greenhouse effect of SF6, C4F7N/CO2/O2 mixed gases have garnered significant attention as highly promising eco-friendly insulating media.
Hongshi Chen, Wei Guo, Hongyi Hu, Zehui Yao, Zhechun Cai, Xiaojing Zhao, Feng Zhang, Peiqiong Lin, Hui Zhu   +8 more
doaj   +2 more sources

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   +2 more sources

Decomposition characteristics and influencing mechanisms of C4F7N/CO2 gas with different metal materials

AIP Advances
C4F7N/CO2 gas mixture, as the main new environmentally friendly gas insulation medium, is now being widely used in the ring network switchgear and other gas electrical equipment.
Yuan Yang, Keli Gao, Hao Wang, Shuai Yuan, Jinchao Du, Yansong Ji, Dehui Fu, Yin Huang, Guangkai Cui   +8 more
doaj   +2 more sources

The decomposition pathways of C4F7N/CO2/O2 mixtures in the PTFE vapors

AIP Advances
The C4F7N/CO2/O2 mixtures have better arc-extinguishing performance compared to the C4F7N/CO2 mixtures, and they have a broader application prospect as a substitute for SF6 in high-voltage circuit breakers and gas insulated substation pipelines.
Sijie Liu, Xiaolong Li, Zhenxin Geng, Ying Lin   +3 more
doaj   +2 more sources

Heptafluorobutyronitrile (C4F7N), Hydrolysis, a Density Functional Theory (DFT) Investigation

Chemical Engineering Transactions
Heptafluorobutyronitrile (C4F7N) has received much consideration as an effective substitute to sulfur hexafluoride (SF6) in the electrical industrial sector over the last decade.
Muhammad Bilal Arif, Christophe Coquelet, Frank Jacquier, Carlo Adamo, Maxime Lacuve, Rachel Calvet   +5 more
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Compatibility and Interaction Mechanism between EPDM Rubber and a SF6 Alternative GasC4F7N/CO2/O2 [PDF]

ACS Omega, 2021
Xiaoxing Zhang, Peng Wu, Lin Cheng, Sicong Liang   +3 more
doaj   +2 more sources

Simulation analysis of arc extinguishing performance of C4F7N/CO2 gas with under impulse arc

电力工程技术
Currently, the C4F7N/CO2 hybrid gas is regarded as one of the most promising SF6 substitutes. In order to explore the arc quenching capabilities of the C4F7N/CO2 gas mixture, a set of arc energy balance equations is developed in accordance with the arc ...
WU Dong, CHEN Wengui
doaj   +2 more sources