Results 21 to 30 of about 4,585 (188)

Insulation strength of CF3I-CO2 gas mixtures as an alternative to SF6 in MV switch disconnectors [PDF]

open access: yes, 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

Influence of Conducting Particle on DC Flashover Characteristics and Tracking Property of GIS/GIL Insulator

open access: yesIEEE Access, 2022
Flashover at gas/insulator interface acts as a vital challenge to the safe and stable operation of gas-insulated system especially when involved with surface metallic particle.
Xiaolong Li, Chen Cao, Xin Lin
doaj   +1 more source

A convolutional neural network based deep learning methodology for recognition of partial discharge patterns from high voltage cables [PDF]

open access: yes, 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

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

Status Review on Gas Insulated Switchgear Partial Discharge Diagnostic Technique for Preventive Maintenance [PDF]

open access: yes, 2017
Gas insulated switchgear (GIS) plays a vital role in high voltage transmission of electrical energy due to its advantages of high reliability and performance, compact in dimensions and outstanding compatibility with the environment.
Abdul-Malek, Zulkurnain   +2 more
core   +2 more sources

Correction to “Thermal Compatibility Between Perfluoroisobutyronitrile-CO2 Gas Mixture With Copper, Aluminum Switchgear”

open access: yesIEEE Access, 2019
In the above-named work, we explored the thermal compatibility between C4F7N-CO2 gas mixture with copper, aluminum used in gas insulated switchgear. The elemental composition of metal surface was investigated using the X-ray photoelectron spectroscopy ...
Yi Li   +7 more
doaj   +1 more source

Boundary element based multiresolution shape optimisation in electrostatics [PDF]

open access: yes, 2015
We consider the shape optimisation of high-voltage devices subject to electrostatic field equations by combining fast boundary elements with multiresolution subdivision surfaces.
Bandara, Kosala   +4 more
core   +1 more source

Evaluation of SF6 leakage from gas insulated equipment on electricity networks in Great Britain [PDF]

open access: yes, 2018
This paper examines the data collected from the power industry over the last six years of actual reported emissions of sulphur hexafluoride (SF6) and the potential impact.
Haddad, Abderrahmane, Widger, Phillip
core   +2 more sources

A precise ultra high frequency partial discharge location method for switchgear based on received signal strength ranging

open access: yesInternational Journal of Distributed Sensor Networks, 2020
Partial discharges are the main insulation defects encountered in gas-insulated switchgears. When it occurs inside the gas-insulated switchgear cavity, it degrades insulation, and, sooner or later, causes a breakdown.
Jiajia Song, Jinbo Zhang, Xinnan Fan
doaj   +1 more source

Research of Reliable Power Supply Schemes for OOO Gazprom Production Yamburg Gas Field [PDF]

open access: yes, 2015
In article the analysis of substation electric part for the enterprises an oil and gas complex power supply is carried out: structure and switchgear schemes, uninterrupted reserve sources structure.
Askarov, Alisher   +2 more
core   +2 more sources

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