Title :
Amorphous metal alloys wound cores test procedure
Author :
Boglietti, A. ; Ferraris, P. ; Lazzari, M. ; Profumo, F.
Author_Institution :
Dipartimento di Ingegneria Elettrica Ind., Politecnico di Torino, Italy
Abstract :
The behavior of several samples of amorphous tape-wound magnetic cores excited under sine-wave voltage conditions at 50 Hz is investigated. Measurements of the induced-voltage and the excitation-current waveforms are used to obtain the dynamic (AC) core characteristic loop consisting of the flux density versus ampere-turns and to obtain the core losses. The possibility of using wound core transformers with either silicon steel or amorphous magnetic materials is discussed. Extensive experimental results on the silicon steel and amorphous metal wound cores are presented in addition to some simulation results in order to validate the proposed procedure.<>
Keywords :
eddy current losses; magnetic cores; magnetic leakage; magnetic properties of amorphous substances; transformer cores; transformer testing; 50 Hz; amorphous magnetic materials; amorphous metal alloys; amorphous tape-wound magnetic cores; ampere-turns; core losses; dynamic core characteristics; eddy current losses; excitation-current waveforms; flux density; induced-voltage; silicon steel; test procedure; wound core transformers; Amorphous materials; Core loss; Density measurement; Loss measurement; Magnetic cores; Silicon; Steel; Testing; Transformer cores; Wounds;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152161
