Results 21 to 30 of about 644 (184)
Self-Attention Network for Partial-Discharge Diagnosis in Gas-Insulated Switchgear
Energies, 2020 Detecting, measuring, and classifying partial discharges (PDs) are important tasks for assessing the condition of insulation systems used in different electrical equipment.
Vo-Nguyen Tuyet-Doan +4 more
doaj +1 more source
A measurement system for very fast transients in GIS power substations [PDF]
E3S Web of Conferences, 2020 In order to acquire the very fast transients during the disconnector operations in GIS (gas insulated switchgear, GIS) of power substation, a novel measurement system is developed and tested.
Wu Yan +3 more
doaj +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
doaj +1 more source
High Voltage, EarlyView.ABSTRACT The breakdown characteristics of the novel eco‐friendly insulating gas CF3SO2F are fundamental to the design of gas‐insulated equipment. In this paper, the gas mixture parameters for CF3SO2F were optimised for different ambient temperatures in order to ascertain the insulation performance and liquefaction temperature constraints.
Shubo Ren +5 more
wiley +1 more source
Green Gas for Grid as an Eco-Friendly Alternative Insulation Gas to SF6: A Review
Applied Sciences, 2020 This paper deals with a review of the state-of-the-art performance investigations of green gas for grid (g3) gas, which is an emerging eco-friendly alternative insulation gas for sulfur hexafluoride (SF6) that will be used in gas-insulated power ...
Baofeng Pan +5 more
doaj +1 more source
Detection Method of Partial Discharge on Transformer and Gas-Insulated Switchgear: A Review
Applied Sciences, 2023 The detection of partial discharge (PD) activities in high-voltage equipment can be conducted according to several mechanisms of signal detection, including electromagnetic wave signal detection, acoustic signal detection, chemical reactions, electrical ...
Zulbirri Faizol +8 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Structural mechanics field simulation plays a critical role in the vibration characteristic analysis of electrical equipment. Existing structural field analysis of equipment based on numerical simulation faces challenges such as convergence difficulties and prolonged computational time, failing to meet the demand for real‐time prediction of ...
Wanqing Wang +6 more
wiley +1 more source
Diance yu yibiaoExtracting the characteristic indicators of SF6 gas insulated switchgear that reflects equipment insulation status to evaluate its insulation state is the basis for safe operation.
GAO Yibo +3 more
doaj +1 more source
Development of ± 550 kV DC GIS Basin Insulator
High Voltage, EarlyView.ABSTRACT The basin insulator is a core component of the insulation system for ± 550 kV gas‐insulated switchgear (GIS). This paper, using a finite element method for multi‐physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators.
Shaohua Cao +9 more
wiley +1 more source
Sensors, 2016 Latent insulation defects introduced in manufacturing process of gas-insulated switchgears can lead to partial discharge during long-time operation, even to insulation fault if partial discharge develops further.
Xingchen Dong +4 more
doaj +1 more source