AC breakdown and decomposition products detection characteristics of eco-friendly insulating medium in gas insulated switchgear [PDF]
Scientific ReportsGas Insulated Switchgear (GIS) was a crucial electrical equipment that provides the safety and security of power systems, and finding the eco-friendly alternatives of sulphur hexafluoride (SF6) as insulating medium in GIS has been an urgent demand in ...
Shuai Du +5 more
doaj +2 more sources
Diagnosis of Partial Discharge Based on the Air Components for the 10 kV Air-Insulated Switchgear [PDF]
Sensors, 2022 Partial discharge (PD) is a common phenomenon of insulation aging in air-insulated switchgear and will change the gas composition in the equipment. However, it is still a challenge to diagnose and identify the defect types of PD.
Qipeng Tan +4 more
doaj +2 more sources
Gas Insulated Switchgear Cartel in the Slovak Republic [PDF]
Yearbook of Antitrust and Regulatory Studies, 2016 The case of the Gas insulated switchgear (hereafter, GIS) cartel is well known to competition experts all over Europe. The cartel lasted for more than twenty years and affected competition on relevant markets in several countries.
Silvia Sramelova
doaj +2 more sources
Environmentally Friendly Compact Air-Insulated High-Voltage Substations [PDF]
Energies, 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.
Maurizio Albano +3 more
doaj +4 more sources
Online Detection of Hydrogen Fluoride under Corona Discharge in Gas-Insulated Switchgear Based on Photoacoustic Spectroscopy [PDF]
SensorsInternal discharge and overheating faults in sulfur hexafluoride (SF6) gas-insulated electrical equipment will generate a series of characteristic gas products.
Liujie Wan, Xiaohe Zhao, Kang Li
doaj +2 more sources
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 +3 more sources
Review of Insulation Defect Detection Methods for a Gas-Insulated Switchgear
EnergiesGas-insulated switchgear (GIS) is a critical component of modern power systems. During operation, internal defects increase the probability of partial discharge and flashover within the insulation system, thereby constituting a major cause of equipment ...
Tengfei Li +5 more
doaj +2 more sources
Finite-difference time-domain simulation of partial discharges in a gas insulated switchgear
High Voltage, 2016 It is important to estimate the current magnitude and charge amount of a partial discharge (PD) in a gas-insulated switchgear (GIS). In this study, electromagnetic fields generated by a PD in an 84 kV-class three-phase GIS for testing have been measured ...
Hiroki Tanaka +6 more
doaj +3 more sources
Recurrent Neural Network for Partial Discharge Diagnosis in Gas-Insulated Switchgear
Energies, 2018 The analysis of partial discharge (PD) signals has been identified as a standard diagnostic tool for monitoring the condition of different electrical apparatuses.
Minh-Tuan Nguyen +3 more
doaj +3 more sources
Assessment of PD severity in gas‐insulated switchgear with an SSAE
IET Science, Measurement and Technology, 2017 Scientific partial discharge (PD) severity evaluation is highly important to the safe operation of gas‐insulated switchgear. However, describing PD severity with only a few statistical features such as discharge time and discharge amplitude is unreliable.
Ju Tang, Fuping Zeng, Xiaoxing Zhang
exaly +2 more sources