Effect of shield placement for transient voltage mitigation due to switching surges in a 33/11 kV transformer windings. [PDF]
PLoS ONE, 2020 This study presents an investigation on the effect of shield placement for mitigation of transient voltage in a 33/11 kV, 30 MVA transformer due to Standard Switching Impulse (SSI) and Oscillating Switching Impulse (OSI) surges.
Avinash Srikanta Murthy +5 more
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Study of Electromagnetic and Thermal Transients in a High-temperature Superconducting Transformer during a Short Circuit [PDF]
Problems of the Regional Energetics, 2023 Today, high-temperature superconducting (HTS) current limiters and transformers allow to limit the surge short circuit current during failure without negatively affecting on the power grid com-plex at the normal operation mode. However, the transition of
Manusov V.Z., Ivanov D.M.
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Developed Method and Modelling of Three-phase Transformer Vector Groups Using ANSYS Maxwell [PDF]
Port Said Engineering Research Journal, 2023 This paper presents a developed method to connect the terminals of low voltage (LV) and high voltage (HV) windings of any given vector group connection.
Salah Selim
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Influence of the HTS Winding Tape on Limiting the Transient Currents in Superconducting Transformers
Energies, 2022 The article presents an extended computer model of a HTS (high temperature superconducting) 21 MVA 70/10.5 kV transformer with severalfold compound windings, based on a verified PSpice model of 10 kVA transformer with single windings. Two superconducting
Paweł Surdacki, Łukasz Woźniak
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The numerical method of inverse Laplace transform for calculation of overvoltages in power transformers and test results [PDF]
Serbian Journal of Electrical Engineering, 2014 A methodology for calculation of overvoltages in transformer windings, based on a numerical method of inverse Laplace transform, is presented.
Mikulović Jovan Č. +1 more
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IEEE Access, 2022 The traction transformer is a critical electrical component in high-speed-trains. We are currently building a 6.5 MVA superconducting traction transformer which will increase transformer efficiency to 99%, halve the weight, and avoid the fire risk
Wenjuan Song +5 more
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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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Design optimisation for distance between additional and tap winding in high-voltage transformers
High Voltage, 2020 The transformer is one of the main components in the power network and transformer windings are one of the most expensive elements in the power transformer.
Kamran Dawood +3 more
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Calculation and Investigation of Steady-State Asymmetric Modes of Three-Windings Three-Legs Power Transformer with Star/Star/Delta Windings Connection [PDF]
Problems of the Regional Energetics, 2018 For the purpose of calculation and studying of steady-state asymmetrical modes of operation of three-windings, three-leg power transformer with an arbitrary winding connection scheme the mathematical model is proposed.
Bosneaga V., Suslov V.
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Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks
Energies, 2020 Due to the increasing requirements for the reliability of electrical power supply and associated apparatus, it is necessary to provide a detailed analysis of the overvoltage risk of power transformer insulation systems and equipment connected to their ...
Jakub Furgał +2 more
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