Results 31 to 40 of about 527 (251)

Superconducting Transformers [PDF]

, 2017
The paper provides an overview of power applications of High Temperature Superconductivity (HTS) with emphasis on superconducting transformers. Properties of available HTS materials are reviewed and modelling aspects briefly introduced. A conceptual design of a 240MVA HTS grid autotransformer is summarised and principal features discussed.
openaire   +1 more source

Superconducting traction transformer

Transformers Magazine, 2021
An ongoing project to develop HTS traction transformers for the Chinese Fuxing high-speed train is demonstrating that the high-power density can be reached using high-temperature superconductors (HTS). The findings are spectacular: the existing 6.5 MVA traction transformers can be replaced with drop-in superconducting transformers, achieving targets of
Song, Wenjuan, Jiang, Zhenan, Staines, Mike, Wimbush, Stuart   +3 more
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Quench protection of superconducting transformers.

TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 1990
Methods to protect superconducting transformers from premature quench due to local disturbances and excess current at accidental short-circuit were studied with regard to structure of the conductor and construction of the transformer. Average variations in temperature of the winding were calculated by a heat balance equation under the conditions both ...
IWAKUMA, Masataka, FUNAKI, Kazuo, YAMAFUJI, Kaoru   +2 more
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ac loss measurements on a superconducting transformer for a 25 kA superconducting rectifier [PDF]

Cryogenics, 1984
Ac loss measurements have been performed on a superconducting transformer. The transformer is a part of a 25 kA thermally switched superconducting rectifier operating at a frequency of 0.1 Hz. The loss measurements have been automatized by means of a microcomputer sampling four relevant signals and processing these data to reliable loss numbers ...
ten Kate, H.H.J., Mulders, J.M., de Reuver, J.L., van de Klundert, L.J.M.   +3 more
openaire   +2 more sources

Justification for creating a mobile complex to assess electric energy loss in power transformers during the operation process [PDF]

E3S Web of Conferences, 2019
The paper analyzes the statistical data on the transformers of the Kromsky branch of Oreloblenergo OJSC including the average lifetime of the transformers and no-load losses measured in accordance with the requirements of Russian standard GOST 3484.1 ...
Vinogradov A. V., Vinogradova A. V., Bolshev V. E., Ward M. O., Makhiyanova N. V., Dolomaniuk L. V.   +5 more
doaj   +1 more source

Modeling and Experimental Study of the Inrush Current of a High-Temperature Superconducting Transformer [PDF]

Problems of the Regional Energetics
Inrush current in high-temperature superconducting (HTS) transformers is a little-studied phenomenon. After connecting to the power grid, a current flow through the windings which exceeding the critical current value of the superconducting tape.
Manusov V.Z., Ivanov D.M., Ivanova E.V.
doaj   +1 more source

Artificial intelligence for superconducting transformers [PDF]

Transformers Magazine, 2021
Artificial intelligence (AI) techniques are currently widely used in different parts of the electrical engineering sector due to their privileges for being used in smarter manufacturing and accurate and efficient operating of electric devices. Power transformers are a vital and expensive asset in the power network, where their consistent and fault-free
Yazdani-Asrami, Mohammad, Taghipour-Gorjikolaie, Mehran, Song, Wenjuan, Zhang, Min, Chakraborty, Sruti, Yuan, Weijia   +5 more
openaire   +4 more sources

Detection of inter-turn faults in transformer winding using the capacitor discharge method

Open Physics, 2017
The paper presents results of an analysis of inter-turn fault effects on the voltage and current waveforms of a capacitor discharge through transformer windings.
Michna Michał, Wilk Andrzej, Ziółko Michał, Wołoszyk Marek, Swędrowski Leon, Szwangruber Piotr   +5 more
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Analysis of the Properties of HTS 2G SCS and SF Windings During Failure States of Superconducting Transformers

Energies
The article presents a PSpice software-based numerical model of a superconducting transformer with HTS 2G SCS and SF windings for the analysis of electrical circuits, developed using PSpice version 24.1 (Cadence, 2024),which allows for the determination ...
Paweł Surdacki, Łukasz Woźniak
doaj   +1 more source

Optimization of the Antenna Unit of the Superconducting Magnetometer: Research of Weak Magnetic Signals

Кібернетика та комп'ютерні технології, 2022
Introduction. The article describes the optimization of the superconducting antenna design and balancing method of the superconducting antenna of magnetometer.
Yuriy Minov, Pavlo Shpylovyi, Yevhenii Melnyk   +2 more
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