Evaluation of AC Copper Loss Reduction Effect of Magnetic‐Coated Flat Wire

Evaluation of AC Copper Loss Reduction Effect of Magnetic‐Coated Flat Wire

This paper shows that a magnetic coating can reduce AC copper loss caused by the proximity effect based on a measured value. A solenoid coil is used for the measurement. This reduction was quantified by supplying external magnetic fields to conductors placed in a central region of the solenoid coil...

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Veröffentlicht in:IEEJ transactions on electrical and electronic engineering 2025-02, Vol.20 (2), p.165-174
Hauptverfasser: Kitajima, Jun, Sakae, Takashi, Sato, Mitsuhide, Mizuno, Tsutomu, Shimoda, Yuki, Kubota, Akihiro, Wada, Shogo, Kichiji, Teruo, Kumagai, Hideo
Format: Artikel
Sprache:eng
Schlagworte:
AC copper loss
Coating effects
Coils
Copper loss
flat wire
Loss reduction
magnetic coated wire
proximity effect
solenoid coil
Solenoids
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Zusammenfassung:This paper shows that a magnetic coating can reduce AC copper loss caused by the proximity effect based on a measured value. A solenoid coil is used for the measurement. This reduction was quantified by supplying external magnetic fields to conductors placed in a central region of the solenoid coil and measuring AC copper loss as changes in the coil's resistance. AC copper loss in aluminum flat wires was minimized by applying a magnetic coating to the wires. The experimental and FEM results confirmed the reduction. The AC copper loss was reduced by a maximum of 59% due to applying magnetic coating. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.
ISSN:1931-4973
1931-4981
DOI:10.1002/tee.24199