Results 51 to 60 of about 644 (184)
High Voltage, Volume 10, Issue 6, Page 1380-1389, December 2025.ABSTRACT Partial discharge (PD) is the indicator of the insulation defect in cables. However, the pulse current method, which is widely adopted in land cables, cannot obtain PD signals of high‐voltage direct current (HVDC) submarine cables due to attenuation and installation position.
Hang Wang +7 more
wiley +1 more source
TiO2 Nanotube Array Sensor for Detecting the SF6 Decomposition Product SO2
Sensors, 2012 The detection of partial discharge through analysis of SF6 gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment.
Ju Tang +4 more
doaj +1 more source
Enhancing Corrosion Resistance of Copper for C4F7N Based Eco‐Friendly Gas‐Insulated Equipment
High Voltage, Volume 10, Issue 5, Page 1125-1134, October 2025.ABSTRACT Perfluoroisobutyronitrile (C4F7N) is recognised as the next‐generation dielectric medium for eco‐friendly gas‐insulated equipment (GIE). However, there is gas metal incompatibility in strong electromagnetic environments and environmentally friendly insulating gas atmospheres that endangers the operational safety and service life of GIE.
Song Xiao +6 more
wiley +1 more source
Revista de Defesa da Concorrência, 2018 O presente artigo, através de metodologia dedutiva, por meio de pesquisa bibliográfica atinente ao tema, especialmente doutrinária e documental, objetiva realizar uma análise crítica sobre o critério de dosimetria das multas aplicadas aos cartéis ...
Rodrigo de Camargo Cavalcanti
doaj
Environmentally Friendly Compact Air-Insulated High-Voltage Substations
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 +1 more source
High Voltage, Volume 10, Issue 4, Page 890-902, August 2025.Abstract Accurately identifying the location and type of internal defects in gas‐insulated switchgear (GIS) is a challenge. To address this challenge, this study proposes a novel method for the nondestructive detection of GIS internal defects. This method is based on x‐ray digital radiography (X‐DR) technology and an improved real‐time models for ...
Guote Liu +3 more
wiley +1 more source
High Voltage, Volume 10, Issue 4, Page 831-844, August 2025.Abstract Mechanical vibration defect is the key factor leading to sudden failure of gas‐insulated switchgear (GIS) equipment. It is important to realise effective prediction of the mechanical vibration state development trend of GIS equipment in order to improve its active safety protection level.
Xu Li +5 more
wiley +1 more source
A novel GIS breakdown location method based on natural frequency of transient voltage
High Voltage, Volume 10, Issue 4, Page 856-875, August 2025.Abstract During on‐site withstand voltage tests of gas‐insulated switchgears (GIS), once a breakdown occurs, it is hard to locate the breakdown position due to the intricate branch structures and minimal breakdown energy. The existing methods may require the placement of a large number of sensors with unsatisfactory accuracy, which adversely affects ...
Qiang Sun +9 more
wiley +1 more source
Applied SciencesAir switchgear is an important power equipment in the transmission, transformation, and distribution process of the power system. Insulation defects can lead to partial discharge, which is one of the primary causes of air switchgear failure.
Yi Tian +3 more
doaj +1 more source
Synthesis of Graphene-Based Sensors and Application on Detecting SF6 Decomposing Products: A Review
Sensors, 2017 Graphene-based materials have aroused enormous focus on a wide range of engineering fields because of their unique structure. One of the most promising applications is gas adsorption and sensing. In electrical engineering, graphene-based sensors are also
Xiaoxing Zhang, Hao Cui, Yingang Gui
doaj +1 more source