Results 11 to 20 of about 2,074 (217)

A measurement system for very fast transients in GIS power substations [PDF]

open access: yesE3S 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

SF6 Decomposed Component Analysis for Partial Discharge Diagnosis in GIS: A Review

open access: yesIEEE Access, 2022
This paper compiles, summarizes, and deliberates over one hundred important works on the different approaches and advances in the surveillance and diagnosis of the internal status of SF6 gas-insulated equipment (GIE), particularly partial discharge (PD ...
Ammar Salah Mahdi   +2 more
doaj   +1 more source

Reviews of Research on Mechanical Fault Diagnosis in GIS [PDF]

open access: yesE3S Web of Conferences, 2020
Gas Insulated Switchgear (GIS) has been widely used in recent years due to their advantages of small floor area, high reliability and good safety. It has arised a series of problems.
Cai Yuqi, Jin Liang
doaj   +1 more source

Analisis Gangguan Pada Sistem Gardu Listrik Berbasis Gas Insulated Switchgear 150 kV Dengan Metode High Voltage Test [PDF]

open access: yes, 2023
The insulator system in substations is essential in maintaining safety and efficiency in electricity transmission and distribution lines. The purpose of this research is to conduct High Voltage tests to check possible malfunctions in a gas-insulated ...
Bachri, Karel Octavianus   +3 more
core   +2 more sources

Gas Insulated Switchgear Cartel in the Slovak Republic [PDF]

open access: yesYearbook 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   +1 more source

Research on Mechanical Defect Detection and Diagnosis Method for GIS Equipment Based on Vibration Signal

open access: yesEnergies, 2021
Gas insulated switchgear equipment (GIS) is widely used in power system, and more attention has been paid to discharge defects than mechanical defects. However, since mechanical defects are a major cause of the failure in GIS, it is of great significance
Liang He   +7 more
doaj   +1 more source

Adsorption properties of Ni cluster modified TiO2 (1 0 1) towards SF6 decomposition gases

open access: yesHigh Voltage, 2023
Online detection of insulation defects the decomposition products of SF6 plays a key role in ensuring the safe operation of the gas‐insulated switchgear (GIS) equipment. The pristine TiO2 (1 0 1) modified by Ni cluster (1–3 Ni atoms) is used as a new gas‐
Yingang Gui   +3 more
doaj   +1 more source

Overview of development, design, testing and application of compact gas-insulated DC systems up to ±550 kV

open access: yesGlobal 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]

open access: yes, 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]

open access: yesE3S Web of Conferences
The 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

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