Results 81 to 90 of about 1,373 (216)
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
Research Status of Substation Vulnerability Under the Coupling Effect of Earthquake and Strong Wind
Advances in Civil Engineering, Volume 2026, Issue 1, 2026.With the progressive advancement of China’s power industry toward higher voltage levels and larger capacity, substations have become critical infrastructures whose resilience to natural disasters requires urgent enhancement. In particular, under the coupled effects of multiple hazards such as earthquakes and strong winds, the optimization of substation
Yihua Gao +5 more
wiley +1 more source
High Voltage, Volume 10, Issue 6, Page 1582-1592, December 2025.ABSTRACT The optical emission spectra (OES) reflect the presence of excited states in the gaseous discharge, which are directly linked to the decomposition characteristics of insulating gases. In this study, a pin/rod–plate discharge reactor driven by either a high‐voltage direct current (DC) generator or a pulsed generator was developed to establish ...
Chenxi Man +5 more
wiley +1 more source
Comparison of a gas insulated switchgear draft in 2D and 3D interface in the offer phase
, 2017 This thesis deals with the design of gas insulated switchgear produced in company ABB s.r.o. Theoretically describes the basics of project engineering in the 2D and 3D environments as well as the construction, partition and properties of the switchgear ...
Turkovič, Matúš
core
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
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
Shape Optimization of a Permittivity Graded Solid Insulator in a Gas Insulated Switchgear
Journal of the Korean Institute of Electrical and Electronic Material Engineers, 2012 A functionally graded material (FGM) spacer, which the distribution of dielectric permittivity inside an insulator changes spatially, can considerably reduce the electric field concentration around a high-voltage electrode and along the gas-insulator interface when compared to a conventional spacer with a uniform permittivity distribution.
Heugn-Jin Ju +2 more
openaire +2 more sources
High VoltageThe submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas‐insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar ...
Hong Shen +7 more
doaj +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
The suitability of N2 to replace SF6 in a triggered spark-gap switch for pulsed power applications
, 2009 The high dielectric strength of sulphur hexafluoride (SF6) when compared with other gases, coupled with safety benefits such as non-flammability and non-toxicity, has seen the widespread use of SF6 for the insulation of switching components. However, SF6
Timoshkin, I. +6 more
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