Electronic transformers using amorphous material

Milkovic, M.; Luborsky, F. E.; Chen, D.; Tompkins, R. E.

doi:10.1109/tmag.1977.1059526

Cited by 16 publications

(3 citation statements)

References 1 publication

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“…They are also more cost-effective than nanocrystalline magnetic materials, making them accessible for specific applications. Milkovic et al [ 48 ] reported the use of an amorphous core transformer magnetic link in an electronic current transformer as early as 1977, which outperformed the Fe-Si core transformer. In 1984, Yamamoto et al [ 49 ] conducted a design study of amorphous core transformers and found that the core loss of the amorphous core transformer was only about 25% of that of a 5000 kVA silicon steel core transformer.…”

Section: Developing High-frequency High-power-density Transformers Wi...mentioning

confidence: 99%

Developing High-Power-Density Electromagnetic Devices with Nanocrystalline and Amorphous Magnetic Materials

et al. 2023

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With the increasing demand for smaller, lighter, and more affordable electromagnetic devices, there is a growing trend toward developing high-power-density transformers and electrical machines. While increasing the operating frequency is a straightforward approach to achieving high power density, it can lead to significant power loss within a limited volume, resulting in excessive temperature rise and device degradation. Therefore, it is crucial to design high-power-density electromagnetic devices that exhibit low power loss and efficient thermal dissipation to address these challenges. Advanced techniques, such as the utilization of novel and advanced electromagnetic materials, hold great promise for overcoming these issues. Specifically, nanocrystalline and amorphous magnetic materials have emerged as highly effective solutions for reducing power loss and increasing efficiency in electromagnetic devices. This paper aims to provide an overview of the application of nanocrystalline and amorphous magnetic materials in transformers and electrical machines, along with key technologies and the major challenges involved.

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Section: Developing High-frequency High-power-density Transformers Wi...mentioning

confidence: 99%

Developing High-Power-Density Electromagnetic Devices with Nanocrystalline and Amorphous Magnetic Materials

et al. 2023

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“…Electronic current transformers have been made [26] using Fe-3.2% Si, 4-79 Mo Permalloy, and amorphous Fe40Ni40P14B6' The performance, evaluated in terms of linearity and phase error, of the amorphous alloy was significantly better than the Fe-Si but not quite as good as the Permalloy. The lower cost expected for the amorphous alloy may make it a useful material for this application in competition with the Permalloy.…”

Section: Descriptions Of Applicationsmentioning

confidence: 99%

Potential of amorphous alloys for application in magnetic devices

Luborsky

Becker

Frischmann

et al. 1978

Journal of Applied Physics

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Amorphous alloys have potential applications in all types of magnetic devices, in both the electronic and power areas of application. For electronic devices, the properties are comparable to those of commercial alloys and the materials offer potentially much lower cost. In power applications such as transformers, losses are far lower than in materials used at present. This results in a potential favorable trade-off between first cost and a substantial energy savings throughout the life of the device. Although power applications have not been emphasized up to now, they appear to hold great promise, especially as wider amorphous tapes become available.

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“…Due to the excellent soft magnetic properties, the amorphous ribbons could be applied to transformers and motors instead of traditional soft magnetic materials. In 1977, a distribution transformer employed amorphous ribbons was shown at the IEEE Conference, but the amorphous ribbons weren't applied to motors until General Electric Company invented an amorphous motor in 1979 [2,3].…”

Section: Introductionmentioning

confidence: 99%

Latest Research Progress of Amorphous Motors

Zhang

Gao

2012

AMM

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The development of amorphous motors has been paid more and more attention. Different types of amorphous motors are designed, calculated, manufactured and tested. All of the motors achieve high efficiency and high torque density, especially in the high speed applications. However, few amorphous motors have been applied to practical applications. This paper reviews the newly development of amorphous motors. Several deficiencies limited the development of amorphous motors are discussed, and some effective improved methods are proposed.

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Electronic transformers using amorphous material

Cited by 16 publications

References 1 publication

Developing High-Power-Density Electromagnetic Devices with Nanocrystalline and Amorphous Magnetic Materials

Developing High-Power-Density Electromagnetic Devices with Nanocrystalline and Amorphous Magnetic Materials

Potential of amorphous alloys for application in magnetic devices

Latest Research Progress of Amorphous Motors

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