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
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
A Classification System for Insulation Defect Identification of Gas-Insulated Switchgear (GIS), Based on Voiceprint Recognition Technology [PDF]
Applied Sciences, 2020 Insulation defects that occur in gas-insulated switchgear (GIS), which is one of the most important types of equipment in the power grid, can lead to serious accidents. The ultrasonic detection method is commonly used to detect partial discharge (PD) signals in power equipment to discover defects.
Weijia Yao +4 more
openaire +2 more sources
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 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
Environmentally friendly compact air-insulated high-voltage substations [PDF]
, 2018 This paper investigates the possible options for achieving a substantial reduction in a substation footprint using air-insulated switchgear as a more environmentally-friendly alternative to gas-insulated substations that use SF6 gas.
Albano, Maurizio +3 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
Gas Insulated Switchgear (GIS) Building Concrete Cracks Causes, Testing and Repair Procedures
, 2023 The Research paper describes the cracks reasoning with their identifications, testing and repair procedures, which can be used as lesson learned and research works with best practices for future projects.
ANWAR UL HAQ KHAN BLOCH +2 more
openaire +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
Pattern Recognition of Partial Discharge by Using Scale parameters-Energy Entropy Characteristic Pairs [PDF]
E3S Web of Conferences, 2019 In this paper, the complex wavelet transform (CWT) was used to process the ultra-high frequency partial discharge (UHF PD) signal in gas insulated switchgear (GIS) at different scales. The trend curves of complex wavelet transform energy entropy (CWT-EE)
Dongchao Liu +3 more
doaj +1 more source