Results 51 to 60 of about 1,999 (210)
High Voltage, EarlyView.ABSTRACT The breakdown characteristics of the novel eco‐friendly insulating gas CF3SO2F are fundamental to the design of gas‐insulated equipment. In this paper, the gas mixture parameters for CF3SO2F were optimised for different ambient temperatures in order to ascertain the insulation performance and liquefaction temperature constraints.
Shubo Ren +5 more
wiley +1 more source
Chromatic processing for feature extraction of PD-induced UHF signals in GIS
Global Energy Interconnection, 2020 Partial discharge (PD) detection is an effective means of discovering insulation faults in gas-insulated switchgear (GIS). One of the most extensively used methods in PD detection has historically been the ultrahigh frequency (UHF) method.
Xi Li +4 more
doaj +1 more source
Sifat Dielektrik Campuran Gas CO2 dengan Nitrogen (N2) Dibawah Terpaan Medan Tinggi DC Polaritas Positif [PDF]
, 2017 Sulfur hexafluoride gas (SF6) is widely used in the power electrical system such as circuit breaker, gas insulated switchgear (GIS) and gas insulated line (GIL).
Anderson, M. (Michael) +1 more
core
Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges
High Voltage, EarlyView.ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li +6 more
wiley +1 more source
Analysis of By-Products of N2-SF6 Gas Mixtures Sparked under Inhomogenous Field Conditions [PDF]
, 2004 A vast data on formation of by-products due to arc and spark decomposition of SF6 is available in literature [1–10]. But experimental work relating to N2 - SF6 gas mixtures is limited. In view of increasing application of gas mixtures, it is essential to
AM Casanovas +6 more
core +4 more sources
Applied Sciences, 2023 The mechanical reliability of the gas-insulated metal-enclosed switchgear (GIS) is critical to the safe and stable operation of a power system. The internal stress induced in GIS insulators, which typically lead to cracking, can degrade the mechanical ...
Zhouyiao Zou +9 more
doaj +1 more source
Calibration of Free-Space Radiometric Partial Discharge Measurements [PDF]
, 2017 The present study addresses the calibration of four types of partial discharge (PD) emulators used in the development of a PD Wireless Sensor Network (WSN).
Atkinson, R +7 more
core +1 more source
High Voltage, EarlyView.ABSTRACT Structural mechanics field simulation plays a critical role in the vibration characteristic analysis of electrical equipment. Existing structural field analysis of equipment based on numerical simulation faces challenges such as convergence difficulties and prolonged computational time, failing to meet the demand for real‐time prediction of ...
Wanqing Wang +6 more
wiley +1 more source
Adaptive Local Multigrid Methods for the Solution of Time Harmonic Eddy Current Problems [PDF]
, 2005 The efficient computation of large eddy current problems with finite elements requires adaptive methods and fast optimal iterative solvers like multigrid methods.
Hauser, Andreas +2 more
core +1 more source
IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.A series resistive‐capacitive divider for harmonic voltage measurement of gas‐insulated switchgear was studied. It can step down the voltage while amplifying the proportion of harmonics in the total sensed voltage, thereby increasing the significant figure for the measurement and enabling the accurate measurement of high‐order, low‐amplitude harmonics.
Huizhong Pang +6 more
wiley +1 more source