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AssigneeJfe Steel Corporation
InventorsHirotaka INOUE, Takeshi OMURA, Kenki SHIMIZU
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A three-phase three-legged wound core is disclosed. The three-phase three-legged wound core includes two adjacent inner cores and one outer core enclosing the two inner cores, the inner cores and the outer core including a grain-oriented electrical steel sheet. In the three-phase three-legged wound core, the two inner cores and the one outer core each have a flat section, a corner section adjacent to the flat section, a lap zone in the flat section, and a bent portion in the corner section; the corner sections of the two inner cores and of the one outer core are each provided with two bent portions, the angle formed by the two bent portions being 30° or more; and the grain-oriented electrical steel sheet has a magnetic flux density B8 of 1.84 T or more and 1.92 T or less at a magnetic field strength H of 800 A/m.
A three-phase three-legged wound core comprising two adjacent inner cores and one outer core enclosing the two inner cores, the inner cores and the outer core comprising a grain-oriented electrical steel sheet, wherein
A method for producing a three-phase three-legged wound core, the three-phase three-legged wound core being such that the three-phase three-legged wound core comprises two adjacent inner cores and one outer core enclosing the two inner cores;
Dependencies are inferred from the claim text.