Results 21 to 30 of about 952 (202)

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   +1 more source

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

Energies, 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, Jie Yang, Ziwei Zhang, Zongwu Li, Dengwei Ding, Minghu Yuan, Rong Li, Mao Chen   +7 more
doaj   +1 more source

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

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, Dejun Li, Karsten Juhre, Mark Kuschel   +3 more
doaj   +1 more source

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

High 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, Shun Yang, Chang Ji, Xianping Chen   +3 more
doaj   +1 more source

On Reliability of 110-500 kV GIS: Operational Experience [PDF]

E3S 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, Galiaskarov Irek, Misrikhanov Misrikhan, Ryabchenko Vladimir, Shuntov Andrey   +4 more
doaj   +1 more source

Defects and failure types of solid insulation in gas‐insulated switchgear: In situ study and case analysis

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, Zhiwen Wang, Lin Liu, Yuan Xu, Yang Yang, Shan Liu, Fusheng Zhou, Shun He, Chuanyang Li   +8 more
doaj   +1 more source

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, Riya Dutta, Jang‐Kyun Kwak, Changgyun Moon, Min‐Jae Kim, Su‐Jeong Suh, Dong‐Hwan Kim, Jung Heon Lee, Sunkook Kim   +8 more
doaj   +1 more source

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

, 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, Soewono, Arka Dwinanda, Jonathan, Edoardo   +2 more
core   +1 more source

Anomaly Detection of Gas-Insulated Switchgear (GIS) Equipment Based on Embedding Position Variational Auto-Encoder

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, Zhu Ming, Qi Yongka, Fu Ming, Xu Hui, Nie Dexin, Li Yongxiang   +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, Saeed S. Alshahrani, Ziyad F. Alzamil   +2 more
openaire   +1 more source