Results 21 to 30 of about 7,327 (250)
Global Energy Interconnection, 2019 The development of high-voltage direct current gas-insulated switchgear assemblies (DC GIS) of rated voltages up to ±550 kV has been completed. DC GIS provide a compact technical solution with a high functional density, optimized for projects with ...
Maria Kosse +3 more
doaj +1 more source
Breakdown performance of vacuum circuit breakers using alternative CF3I-CO2 insulation gas mixture [PDF]
, 2016 In this paper, sulphur hexafluoride (SF6) insulated vacuum interrupter circuit breakers have been used to explore replacing SF6 gas with a trifluoroiodomethane and carbon dioxide (CF3I-CO2) gas mixture.
Griffiths, H., Haddad, A., Widger, P.
core +1 more source
On Reliability of 110-500 kV GIS: Operational Experience [PDF]
E3S Web of ConferencesThe accident rate of gas-insulated switchgears (GIS) is considered. The statistical sample covered 30 110-500 kV switchgear switchgears in a vast region of the European part of the country for the period 2008-2022.
Korotchenko Evgeniy +4 more
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Insulation strength of CF3I-CO2 gas mixtures as an alternative to SF6 in MV switch disconnectors [PDF]
, 2018 This paper evaluates the insulation performance of gas mixtures of trifluoroiodomethane and carbon dioxide (CF3I-CO2) in a medium voltage switch disconnector.
Griffith, H. +2 more
core +2 more sources
Journal of Physics: Conference Series, 2022 Abstract Gas-insulated switchgear (GIS) is one of the most important power devices in the power system. Once a fault occurs, it is difficult to determine and locate the fault due to its fully enclosed nature, which may lead to greater accidents and huge losses.
Mei Jie +6 more
openaire +1 more source
High Voltage, 2022 The gas‐insulated switchgear (GIS) has been widely used in modern ultra‐high voltage systems. However, once it fails, its fully enclosed feature brings challenges in its diagnosis and maintenance.
Yunqi Xing +8 more
doaj +1 more source
A convolutional neural network based deep learning methodology for recognition of partial discharge patterns from high voltage cables [PDF]
, 2019 It is a great challenge to differentiate partial discharge (PD) induced by different types of insulation defects in high-voltage cables. Some types of PD signals have very similar characteristics and are specifically difficult to differentiate, even for ...
Bhatti, Ashfaque Ahmed +11 more
core +4 more sources
Solid by-products of a CF3I-CO2 insulating gas mixtures on electrodes after lightning impulse breakdown [PDF]
, 2017 This paper investigates the solid by-products of CF3I–CO2 gas mixtures and their proposed use as an alternative insulation medium in gas insulated switchgear and lines.
Haddad, Abderrahmane, Widger, Phillip
core +1 more source
Digital colorimetric sensing for real‐time gas monitoring for smart green energy system
EcoMat, 2023 In this study, we demonstrate that a digital colorimetric sensor platform can transform a conventional energy system, such as gas‐insulated switchgear (GIS) into a smart green energy system. Our sensor platform consists of a colorimetric sensor film (CSF)
Hui Hun Cho +8 more
doaj +1 more source
A frequency-based RF partial discharge detector for low-power wireless sensing [PDF]
, 2010 Partial discharge (PD) monitoring has been the subject of significant research in recent years, which has given rise to a range of well-established PD detection and measurement techniques, such as acoustic and RF, on which condition monitoring systems ...
Baker, P.C. +2 more
core +1 more source