Results 11 to 20 of about 10,045 (225)
Control of Magnetizing Inrush Current in a Transformer by Means of Thyristors [PDF]
, 1976 When a transformer is energized, the inrush of abnormally high magnetizing current may be noted for a short time until normal flux conditions are established.
Himei, Toyoji +5 more
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Energies, 2019 In recent years, the zero-mode inrush current of high-impedance transformer with built-in high-voltage winding (T-Hin), which has large amplitude and decays slowly, causes the misoperation of zero-sequence overcurrent protection.
Wenbin Cao +5 more
doaj +1 more source
Novel soft-start method for three-phase voltage source rectifier based on virtual resistor control
Archives of Electrical Engineering, 2020 The existence of inrush current poses a significant problem during the start-up process within three-phase voltage-source rectifiers. To address this problem, this study proposes a strategy to suppress the inrush current effectively based on the virtual ...
Kaizhong He, Hongsheng Su
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Energies, 2021 When the electromagnetic transients occur in a power transformer, an inrush current is generated in its winding. The inrush current not only affects the performance of the transformer windings, but also affects the lifetime of the transformer.
Wenqi Ge +4 more
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The effect of inrush transients on pv inverter's grid impedance measurement based on inter-harmonic injection [PDF]
, 2010 This paper addresses a cause for false tripping of photovoltaic inverters with antiislanding protection based on impedance measurement with inter-harmonic injection. Earlier discussions about tripping problems happening when several devices are doing the
Bhattacharyya, S. +5 more
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Energies, 2018 This paper proposes the inrush current suppressor using an AC chopper in a large-capacity wind power generation system (WPGS) with two squirrel-cage induction machines (SCIMs), which are switched over depending on the wind speed. The input side of the AC
Sho Shibata +3 more
doaj +1 more source
Implications of fault current limitation for electrical distribution networks [PDF]
, 2010 This paper explores the potential future need for fault current limitation in the UK's power system, and some of the technical implications of this change.
Blair, S.M. +5 more
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Automatic J–A Model Parameter Tuning Algorithm for High Accuracy Inrush Current Simulation
Energies, 2017 Inrush current simulation plays an important role in many tasks of the power system, such as power transformer protection. However, the accuracy of the inrush current simulation can hardly be ensured.
Xishan Wen, Jingzhuo Zhang, Hailiang Lu
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Effect of CT transient characteristics on transfer of inrush
The Journal of Engineering, 2019 During the inrush period, multiple misoperation accidents of differential protection of transformers happened, which seriously threatened the safe and stable operation of power grid.
Wei Liu +5 more
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Voltage compensation-type inrush current limiter for reducing power transformer inrush current
IET Electric Power Applications, 2012 When a transformer is initially energised, its iron core is driven into saturation, which will result in high-amplitude magnetising inrush current. For lessening this transient phenomenon, a voltage compensation-type inrush current limiter (VCT-ICL) is presented in this study.
H.-T. Tseng, J.-F. Chen
openaire +1 more source