Results 21 to 30 of about 4,686 (224)
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
Partial Discharge Measurements in a High Voltage Gas Insulated Transmission Line Insulated with CO2
Energies, 2020 This paper uses practical experimentation to analyse the effect of replacing SF6 with pure CO2 in conventional gas insulated transmission line sections by studying partial discharge measurements taken with applied voltages up to 242 kV (rms). The results
Phillip Widger +5 more
doaj +1 more source
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
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
Environmental impacts of high penetration renewable energy scenarios for Europe [PDF]
, 2016 The prospect of irreversible environmental alterations and an increasingly volatile climate pressurises societies to reduce greenhouse gas emissions, thereby mitigating climate change impacts.
Arvesen, Anders +4 more
core +1 more source
IEEE Access, 2019 In the above-named work, we explored the thermal compatibility between C4F7N-CO2 gas mixture with copper, aluminum used in gas insulated switchgear. The elemental composition of metal surface was investigated using the X-ray photoelectron spectroscopy ...
Yi Li +7 more
doaj +1 more source
IEEE Access, 2022 Flashover at gas/insulator interface acts as a vital challenge to the safe and stable operation of gas-insulated system especially when involved with surface metallic particle.
Xiaolong Li, Chen Cao, Xin Lin
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
International Journal of Distributed Sensor Networks, 2020 Partial discharges are the main insulation defects encountered in gas-insulated switchgears. When it occurs inside the gas-insulated switchgear cavity, it degrades insulation, and, sooner or later, causes a breakdown.
Jiajia Song, Jinbo Zhang, Xinnan Fan
doaj +1 more source
Boundary element based multiresolution shape optimisation in electrostatics [PDF]
, 2015 We consider the shape optimisation of high-voltage devices subject to electrostatic field equations by combining fast boundary elements with multiresolution subdivision surfaces.
Bandara, Kosala +4 more
core +1 more source