Results 41 to 50 of about 595 (205)

Modern Applications of Electrostatics and Dielectrics [PDF]

open access: yes, 2021
Electrostatics and dielectric materials have important applications in modern society. As such, they require improved characteristics. More and more equipment needs to operate at high frequency, high voltage, high temperature, and other harsh conditions.

core   +1 more source

Research Progress on Synergistic Effect between Insulation Gas Mixtures [PDF]

open access: yes, 2020
Synergetic effect is a special gas discharge phenomenon among insulating gas mixtures, which has important reference value for gas selection of future gas-insulated power equipment.
Xiao, Dengming, Zhao, Su
core   +2 more sources

Diffusional Behavior of New Insulating Gas Mixtures as Alternatives to the SF6-Use in Medium Voltage Switchgear [PDF]

open access: yes, 2022
Regarding the use of SF6 in medium voltage switchgear (MVS), a review of alternatives was encouraged by the European Parliament in Regulation No 517/2014. This is aimed at a new regulatory change, that is expected soon, which will include its prohibition,
Alonso Alonso, María Luz   +8 more
core   +1 more source

AC volume breakdown and surface flashover of a 4% NovecTM 4710/96% CO2 gas mixture compared to CO2 in highly nonhomogeneous fields [PDF]

open access: yes, 2020
AC pre-discharge currents, breakdown, and flashover voltage measurements are reported in a 10 mm needle-plane arrangement in a 4% NovecTM 4710/96% CO2 gas mixture and compared with CO2 for pressures up to 8.8 bar abs.
Haddad, Abderrahmane   +3 more
core   +2 more sources

Arc decomposition behavior of C4F7N/Air gas mixture and biosafety evaluation of its by‐products

open access: yesHigh Voltage, 2022
At present, reports on the arc interruption and decomposition behavior of a C4F7N/air gas mixture especially the biosafety of its by‐products are limited.
Fanchao Ye   +7 more
doaj   +1 more source

Surface flashover in 50 years: Theoretical models and competing mechanisms

open access: yesHigh Voltage, Volume 8, Issue 5, Page 853-877, October 2023., 2023
Abstract Surface flashover is a devastating electronic avalanche along the gas–solid interface when a high electric field is applied, which is a potential issue that threatens the safe operations of advanced power electronic, electrical, and spacecraft applications. However, the underlying physical mechanisms for surface flashover development are still
Zhen Li   +5 more
wiley   +1 more source

Optical Feature Analysis and Diagnosis of Partial Discharge in C4F7N/CO2 Based on Multispectral Array

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Optical detection of partial discharge (PD) is an important way to reflect the insulation status of equipment. C4F7N/CO2 gas mixture is one of the most potential substitutes for SF6 at present, but there is a lack of research on its optical PD ...
LI Ze, QIAN Yong, ZANG Yiming, ZHOU Xiaoli, SHENG Gehao, JIANG Xiuchen
doaj   +1 more source

Influence of micro‐water on AC breakdown characteristics of C4F7N/CO2 gas mixture under non‐uniform electric field

open access: yesHigh Voltage, 2022
The application of eco‐friendly C4F7N/CO2 gas mixture has become a hot topic in the power industry. To obtain the influence law of micro‐water on the AC insulation characteristics of C4F7N/CO2 gas mixture, breakdown tests were carried out under different
Yuan Yang   +5 more
doaj   +1 more source

Analysis of the insulation characteristics of hexafluorobutene (C 4 H 2 F 6 ) gas and mixture with CO 2 /N 2 as an alternative to SF 6 for medium-voltage applications [PDF]

open access: yes, 2023
This paper investigates C4H2F6, a promising environmentally friendly insulating gas that possesses high dielectric strength and a low global warming potential.
Ahmed, Rizwan   +5 more
core   +1 more source

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