Results 1 to 10 of about 3,163 (202)
Once again on loading and capacity selection of autotransformers in transmission grids [PDF]
E3S Web of Conferences, 2023 The aspects which have a bearing upon selection of capacity of autotransformers, such as load graphs, permissible temperature characteristics, n-1, n-2 modes, are considered.
Vasilenko Nikita +2 more
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Efficient Zero-Sequence Impedance Measurement in Autotransformers Using Low-Voltage Excitation
Applied Sciences, 2023 In accordance with the IEEE standard, the zero-sequence impedance test of transformers necessitates an open or short circuit test on the high-voltage side winding.
Min Zhang +6 more
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Electrical engineering & Electromechanics, 2019 Purpose. The purpose of the paper is to determine the basic electrical characteristics and to develop a calculation method and algorithm for optimizing the design parameters of autotransformers intended for use in a melting ice scheme with a non ...
O. P. Lazurenko +4 more
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Integral Approach-Based Sensitive Protection of Autotransformers for Turn-to-Turn Faults
EnergiesCurrent differential protection, using either phase currents or negative-sequence components, is commonly applied for the sensitive protection of power transformers.
Krzysztof Solak +2 more
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INCREASING THE EFFICIENCY OF POWER AUTOTRANSFORMERS
Vestnik Chuvashskogo universiteta, 2023 The issues of implementing effective measures to reduce losses during the operation of power electrical equipment are of particular practical interest for electric grid and industrial enterprises. It is known that power transformers have a fairly high coefficient of performance (COP) in nominal (and close to them) modes.
Maksim G. Popov +2 more
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Autotransformers for power systems
PRZEGLĄD ELEKTROTECHNICZNY, 2018 When the primary and secondary voltages are obtained from the same winding, or from two windings which are galvanically connected, such a transformer is called an autotransformer.
W. Ziomek
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About loading of autotransformers in main electrical grids and conclusions for designing
E3S Web of Conferences, 2017 The justification issues and the capacity selection of autotransformers in the main electrical grids, which require the accounting of the operation regimes of power units for the future of 10 or more years are considered.
Vasilenko Nikita +2 more
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Investigation of Steady State Two-Phase Short Circuit Modes Of Phase-Shifting Autotransformer with Hexagon Scheme and with Adjusting Autotransformer [PDF]
Problems of the Regional Energetics, 2023 The purpose of work is to investigate two - phase short-circuiting modes of new autotransformer FACT’s - type device and is intended for power systems flexible connection.
Bosneaga V., Suslov V.
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Calculation of protection function settings of new elements of the 500 kV transmission system [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2022 In the paper the protection function setting calculations for elements of the transmission system are shown. Analyzed transmission system consists of the 500 kV and 230 kV voltage levels.
Sučević Nikola
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IET Electric Power Applications, 2023 Once the short circuit damage accident of a large capacity 500 kV transformer occurs suddenly, it will seriously affect the safe operation of the power grid.
Zhongxiang Li +7 more
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