Acoustic and Soft Magnetic Properties in Amorphous Alloy-Based Distribution Transformer Cores

Author

Takahashi, Koichi ; Azuma, Daichi ; Hasegawa, Ryusuke

Author_Institution

Metglas, Inc., Conway, SC, USA

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

4001

Lastpage

4004

Abstract

A new amorphous Fe-based alloy, Metglas^® 2605 HB1M, has been developed for distribution transformer cores, modifying the chemical compositions of a conventional alloy. The distribution transformer model cores based on HB1M and conventional Metglas^® 2605 HB1 alloy were annealed with magnetic field and then evaluated on their acoustic and soft magnetic properties. It has been found that A-weighted sound power levels and exciting power of HB1M-based cores are lower than those of HB1-based cores. These transformer performance improvements result from the magnetic anisotropy being induced more easily in HB1M than in HB1 alloy.

Keywords

acoustic noise; amorphous state; chemical analysis; iron alloys; magnetic anisotropy; magnetic annealing; soft magnetic materials; transformer cores; A-weighted sound power levels; HB1M-based cores; Metglas 2605 HB1M; acoustic properties; amorphous Fe-based alloy; annealing; chemical compositions; distribution transformer cores; exciting power; magnetic anisotropy; magnetic field; soft magnetic properties; Amorphous magnetic materials; Annealing; Magnetic anisotropy; Magnetic hysteresis; Metals; Transformer cores; Acoustic noise; Metglas 2605 HB1M alloy; amorphous alloy; magnetic anisotropy; transformer core;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2238221

Filename

6559170