Results 1 to 10 of about 13,357 (265)
High Frequency Transformers for Solid-State Transformer Applications
Applied Sciences, 2023 This paper focuses on the study of the high frequency transformer incorporated in solid- state transformers, specifically on the development of the steps that enable the design of an optimized high frequency transformer and its equivalent model based on ...
Nuno Santos +5 more
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The Effects of K-BNNS Nanoparticles on PD Characteristics of Composite Aramid Paper [PDF]
NanomaterialsAramid paper serves as an insulating material in high-frequency power electronic transformers, and the incorporation of composite K-BNNS particles has been shown to enhance the insulating properties of aramid paper.
Yan-Hong Chen +5 more
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Reference High-Voltage Sensing Chain for the Assessment of Class 0.1-WB3 Instrument Transformers in the Frequency Range up to 150 kHz According to IEC 61869 [PDF]
SensorsThis paper presents the development and characterization of a reference high-voltage sensing chain for the calibration and conformity assessment of instrument transformers with Class 0.1-WB3, in the extended frequency range up to 150 kHz, according to ...
Mohamed Agazar +2 more
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Energy Reports, 2022 Nanocrystalline transformers have better electromagnetic properties than electrical steel transformers, such as lower losses. Nowadays, numerous nanocrystalline magnetic cores have served in the research work of high-frequency transformers, but there is ...
Zhenyu Cai +3 more
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The simulation of a new high frequency transformer
Journal of Energy Systems, 2022 Core losses of transformers motivate many engineers and scientists to design and implement different transformers for their specific aims. Since there exists a growing interest on high frequency applications in today’s world, design and optimization studies of a magnetic fluid core transformer (MFCT), having an easy and cheap production approach in ...
Sude HATEM, Erol KURT
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IEEE Open Journal of Power Electronics, 2022 In both planar and wire-wound transformers, large copper cross-sections and parallel windings are often used to increase conduction area and decrease copper loss.
Michael Solomentsev, Alex J. Hanson
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High-Frequency Current Transformers Cascade for Power Electronics Measurements
Sensors, 2022 High-frequency current transformers (HFCT) are widely used to measure fast transient current. Their advantages are simple structure and relatively moderate price.
Maciej Chojowski +3 more
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High-frequency transformation of Rhizobium meliloti [PDF]
Journal of Bacteriology, 1988 Transformation of R factor RP4 and its derivative pRK290 from Escherichia coli to Rhizobium meliloti is reported. The efficiency of transformation was in the range of 10(-5) per viable cell. In addition, chromosomal DNA prepared from one R. meliloti strain resistant to streptomycin was transferred to the isoleucine-valine-requiring mutant susceptible ...
J, Courtois, B, Courtois, J, Guillaume
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A Higher-Order Loss-Separation Model for Fast Estimation of Core Loss in High-Frequency Transformers
IEEE Access, 2023 The core loss calculation is essential for the design and performance evaluation of high-frequency transformers. It is related to the dimensions, temperature rises performance, and operating efficiency of transformer designs.
Lujia Wang +5 more
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Overvoltage Protection for High Frequency High Voltage Power Transformers
Eletrônica de Potência, 2019 Transformers with high-voltage operation may have undesired behavior due to the effects of their parasitic elements. In power electronics applications, if the primary voltage has harmonics, transformer resonances may be excited, causing high primary ...
Diego Teruo Mendes de Souza +2 more
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