Results 11 to 20 of about 130,424 (262)
Tower Air-gaps discharge characteristics and insulation coordination for UHV AC double-circuit line
The Journal of Engineering, 2019 In order to give out inverse V-type insulator tower air-gaps configuration of double-circuit UHV AC power transmission line, different distance air-gaps from high-voltage electrode to tower frame discharge tests of inverse V-string are carried out ...
Huo Feng, Nan Jing, Ye Qiming, Ma Yeming
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Influence of Mountain Wildfires on the Insulation Properties of Air Gaps in Power Grids
EnergiesThe complex terrain of China frequently leads to wildfires, which in turn pose a threat to the safe operation of power transmission lines. Studying the breakdown characteristics of air gaps under wildfire conditions is of great significance for ...
Fangrong Zhou +8 more
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Controlling magnetic inductance by air-gap configuration in power electronics applications [PDF]
Archives of Electrical Engineering, 2023 Gapped magnetic components are inherent to applications where conversion of power would force magnetic flux density beyond the saturation point of magnetic materials.
Rafal Kasikowski
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IET Science, Measurement & Technology, 2023 The diffusional process involving elastic collisions between charge carriers and neutrals has long been the predominant candidate for post‐injection momentum loss in the far wider drift region outside confined DC corona discharges in gases.
Francesco Lattarulo
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High Voltage, 2020 Saturable reactor insulation is currently stressed by an exponential decay pulse voltage under normal operating conditions. The partial discharge (PD) characteristics of epoxy resin under an exponential decay pulse voltage were studied here and were ...
Lu Gui +5 more
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Optimal design of q‐axis field winding structure of dual‐excited synchronous condenser
IET Electric Power Applications, 2023 The dual‐excited synchronous condenser (DESC) has two field windings whose axes are located at direct and quadrature axes respectively. The DESC has more capacity of absorbing reactive power than that of the traditional synchronous condenser (TSC ...
Guorui Xu +3 more
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Dynamic analysis of Halbach coaxial magnetic gears based on magnetic equivalent circuit modelling
IET Circuits, Devices and Systems, 2021 Halbach permanent magnet arrays (HPMAs) are an attractive configuration that can be applied in PM electric machines such as magnetic gears. These arrays have some merits, namely near‐sinusoidal distribution of flux density along air gap, low torque ...
A. Beirami +3 more
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Development of a ±660 kV DC transmission line arrester
The Journal of Engineering, 2019 In order to improve the lightning withstand level of ±660 kV DC transmission line in China, the authors had begun to develop the ±660 kV DC line arrester since 2014, which was developed successfully in 2016.
Shanqiang Gu +6 more
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IET Energy Systems Integration, 2021 This article studies and investigate the magnetic characteristics of a surface mounted permanent magnet (SPM)‐type brushless direct current (BLDC) motor when subjected to demagnetisation fault conditions.
Adil Usman +2 more
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IET Electric Power Applications, 2021 In this study, the rotor loss as well as the temperature variations due to the static air‐gap eccentricity (SAGE) and the rotor inter‐turn short circuit (RISC) in synchronous generators is presented.
Yu‐Ling He +8 more
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