skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Alternating current loss reduction for rectangular busbars by covering their edges with low permeable magnetic caps

Abstract

A method to reduce ac conductive losses in a thin rectangular busbar made of copper is presented. The method is based on a technique, which makes the distribution of the ac current in the cross section of a busbar flatter. Edges of a thin busbar are covered with low permeability magnetic thin layers as caps. The magnetic cap makes the impedance experienced by the current flowing near the edge comparatively larger so that currents cannot get crowded near the edges of a busbar. This method is numerically verified.

Authors:
 [1]
  1. Applied Science for Electronics and Materials, Kyushu University, Kasuga (Japan)
Publication Date:
OSTI Identifier:
22273672
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AC LOSSES; ALTERNATING CURRENT; COPPER; IMPEDANCE; LAYERS; MAGNETIC SUSCEPTIBILITY; THIN FILMS

Citation Formats

Sasada, Ichiro, E-mail: sasada@ence.kyushu-u.ac.jp. Alternating current loss reduction for rectangular busbars by covering their edges with low permeable magnetic caps. United States: N. p., 2014. Web. doi:10.1063/1.4869068.
Sasada, Ichiro, E-mail: sasada@ence.kyushu-u.ac.jp. Alternating current loss reduction for rectangular busbars by covering their edges with low permeable magnetic caps. United States. doi:10.1063/1.4869068.
Sasada, Ichiro, E-mail: sasada@ence.kyushu-u.ac.jp. 2014. "Alternating current loss reduction for rectangular busbars by covering their edges with low permeable magnetic caps". United States. doi:10.1063/1.4869068.
@article{osti_22273672,
title = {Alternating current loss reduction for rectangular busbars by covering their edges with low permeable magnetic caps},
author = {Sasada, Ichiro, E-mail: sasada@ence.kyushu-u.ac.jp},
abstractNote = {A method to reduce ac conductive losses in a thin rectangular busbar made of copper is presented. The method is based on a technique, which makes the distribution of the ac current in the cross section of a busbar flatter. Edges of a thin busbar are covered with low permeability magnetic thin layers as caps. The magnetic cap makes the impedance experienced by the current flowing near the edge comparatively larger so that currents cannot get crowded near the edges of a busbar. This method is numerically verified.},
doi = {10.1063/1.4869068},
journal = {Journal of Applied Physics},
number = 17,
volume = 115,
place = {United States},
year = 2014,
month = 5
}