Results 31 to 40 of about 677,995 (332)
IEEE Access, 2023 Power transformers are inevitably subjected to external short circuit impact during their service period. The electromagnetic force generated by the fault current may cause winding destabilization and collapse.
Qiang Ou +4 more
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IET Generation, Transmission & Distribution, 2022 This paper presents a reluctance‐based model considering the frequency‐dependent loss nature of the windings for the analysis of three‐phase five‐leg transformers under grid voltages with direct current (DC) bias.
Sevket Canturk +3 more
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The absoption refrigerator as a thermal transformer [PDF]
, 2009 The absorption refrigerator can be considered a thermal transformer, i.e. a device that is analogous to the electric transformer. The analogy is based on a correspondence between the extensive quantities entropy and electric charge and that of the ...
Carnot S +4 more
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Study on the Method of Calculating Temperature Rise of Transformer [PDF]
E3S Web of Conferences, 2020 The internal temperature of the transformer is a key parameter to measure the thermal state of the transformer. The service life of the transformer generally depends on the life of the insulating material, and high temperature is the main reason why ...
Li Tao +3 more
doaj +1 more source
Voltage regulation considerations for the design of hybrid distribution transformers [PDF]
, 2014 The future substation depends on finding a way to mitigate the effects of the drawbacks of the conventional legacy by employing the efficiency of the solid state switches [1].
Alqarni, M, Darwish, M, Radi, MA
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Комбінований фільтрокомпенсуючий пристрій
Elektrotehnìka ta Elektroenergetika, 2010 Пропонується схема комбінованого фільтрокомпенсуючого пристрою. Основні переваги фільтра полягають в автоматичній зміні параметрів компенсації вищих гармонік з мінімальними втратами електричної енергії при передачі реактивної потужності, а також у ...
V. V. Kushch +3 more
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Less-conventional low-consumption galvanic separated MOSFET-IGBT gate drive supply [PDF]
, 2017 A simple half-bridge, galvanic separated power supply which can be short circuit proof is proposed for gate driver local supplies. The supply is made while hacking a common mode type filter as a transformer, as the transformer shows a good insulation, it
Bikorimana, Jean Marie Vianney +1 more
core +3 more sources
Power Transformer Vibration Analysis Model Based on Ensemble Learning Algorithm
IEEE AccessThe inflow of DC magnetic flux into the core of power transformers under DC bias conditions leads to a significant increase in operational losses, noise levels, and vibration amplitudes, posing substantial threats to the stability and reliability of the ...
Baidi Shi +6 more
doaj +1 more source
Multilevel single phase isolated inverter with reduced number of switches [PDF]
, 2018 This paper proposes a cascaded single phase multilevel inverter using an off-the-shelf three-phase inverter and transformer. The concept is based on a cascaded connection of two inverter legs using a typical three phase inverter in such a way that the ...
Atef Abbas Elsaharty, Mohamed +3 more
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