DocumentCode
2290739
Title
Amorphous core transformers for induction heating converters at 25 kHz
Author
Lupi, S. ; Nunes, M.F.
Author_Institution
Dept. of Electr. Eng., Padua Univ., Italy
fYear
1990
fDate
7-12 Oct. 1990
Firstpage
2036
Abstract
The design and construction of an industrial 25 kHz, 600 kVA power unit with pancake coils are discussed. Criteria for specifying the rated power of the transformer and a comparison with grain-oriented Si-steel transformers are presented. It is shown that the main advantages of using amorphous alloys in this frequency range, in comparison with grain oriented Si-steel cores, are lower first and total costs of the unit for the same output power, higher efficiency values, and reduction of the weight of the transformer.<>
Keywords
induction heating; power convertors; power transformers; transformer cores; 25 kHz; 600 kVA; amorphous core transformers; grain-oriented Si-steel transformers; induction heating converters; pancake coils; Amorphous magnetic materials; Amorphous materials; Coils; Costs; Electrical equipment industry; Frequency; Magnetic cores; Magnetic materials; Power generation economics; Transformer cores;
fLanguage
English
Publisher
ieee
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
Type
conf
DOI
10.1109/IAS.1990.152466
Filename
152466
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