Thermal Current Interruption Performance of CO2 and CO2/C4F7N mixture [PDF]
PLASMA PHYSICS AND TECHNOLOGY, 2023 This contribution aims to compare the thermal interruption performance of pure CO2with a mixture of CO2/C4F7N. Measurements primarily show higher interrupting capability for amixture with C4F7N.
Engelbrecht, Joseph +3 more
core +4 more sources
Negative corona discharge mechanism in C4F7N–CO2 and C4F7N–N2 mixtures
AIP Advances, 2022 Due to their good dielectric properties and low global warming potential, C4F7N–CO2 and C4F7N–N2 mixtures have shown promising potential to replace SF6 in high voltage gas insulated equipment.
Qingqing Gao +7 more
doaj +2 more sources
The decomposition mechanism of C4F7N-Cu gas mixtures [PDF]
AIP Advances, 2019 C4F7N is one of the most remarkable replacements for SF6, and its decomposition mechanism has a great influence on insulating performance and environmental properties. It is noteworthy that discharges or high temperature also evaporates metal electrodes (
Yuwei Fu +4 more
doaj +2 more sources
Effect of Copper Vapor on Radiation Properties of C4F7N Gas Mixtures [PDF]
PLASMA PHYSICS AND TECHNOLOGY, 2023 C4F7N and its mixture with buffer gases are regarded as the most promising SF6-alternative gases in gas circuit breakers. The switching arc can severely ablate the electrodes, producing copper metal vapor that combine with the C4F7N gas mixture to chang ...
Deng, Jungwei, Li, Xingwen, Zhang, Boya
core +3 more sources
Clarifications on the behavior of alternative gases to SF6 in divergent electric field distributions under AC voltage [PDF]
AIP Advances, 2021 Negative and positive partial discharge inception voltages and breakdown measurements are reported in a needle-plane electrode system as a function of pressure under AC voltage for natural gases (N2, CO2, and O2/CO2), pure NovecTM gases (C4F7N and C5F10O)
(Manu) Haddad, Abderrahmane +3 more
core +5 more sources
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
Radiative Properties and Numerical Modeling of C4F7N-CO2-O2 Thermal Plasma [PDF]
PLASMA PHYSICS AND TECHNOLOGY, 2019 C4F7N and C4F7N-CO2 mixtures are considered as alternatives to SF6 for use in medium voltage gas insulated switchgear applications (GIS), due to the low global warming potential and good dielectric properties of C4F7N.
Gnybida, M. +2 more
core +3 more sources
Inhibition Effect of Solid Products and DC Breakdown Characteristics of the HFO1234Ze(E)-N2-O2 Ternary Gas Mixture. [PDF]
ACS Omega, 2021 HFO1234ze(E) is an environmentally friendly SF6 substitute gas with prominent application potential. To suppress the generation of the HFO1234ze(E) solid decomposition products, which may cause great hazards to the gas–solid insulation strength, a gas ...
Liu H, Li Q, Wang J, Jiang Y, Haddad AM.
europepmc +3 more sources
Numerical simulation of streamer discharge with different electrode shapes in C4F7N
AIP Advances, 2023 In recent years, the environmentally friendly gas, C4F7N, has been recognized as a potential SF6 alternative gas due to its excellent insulation. To study the streamer discharge characteristics of different electrode shapes in C4F7N, a fluid model was ...
Xinfeng Yan +4 more
doaj +2 more sources
AC breakdown and decomposition products detection characteristics of eco-friendly insulating medium in gas insulated switchgear [PDF]
Scientific ReportsGas Insulated Switchgear (GIS) was a crucial electrical equipment that provides the safety and security of power systems, and finding the eco-friendly alternatives of sulphur hexafluoride (SF6) as insulating medium in GIS has been an urgent demand in ...
Shuai Du +5 more
doaj +2 more sources