Stationary induction apparatus with core indentations and ridges

Details Stationary induction apparatus with core indentations and ridges Stationary induction apparatus with core indentations and ridges

1987-12-31

1989-09-05

Kozma, Thomas J.

Inductor devices

With core clamps, wedges or fasteners

336217, 336234, H01F 2726

Patent

active

048642673

ABSTRACT:
An iron core of a stationary induction apparatus such as a transformer has a plurality of steel sheets stacked in layers. Each corner of the core has a yoke member and a leg member abutting and jointed to each other at their obliquely cut ends in such a manner that the two members of alternating layers partially overlap each other over a predetermined overlapping region at each corner of the core. The surfaces of the members in the overlapping region are roughened by, for example, being provided with fine linear indentations and ridges.

REFERENCES:
patent: 2565303 (1951-08-01), Garbarino
patent: 3076160 (1963-01-01), Daniels
patent: 3252119 (1966-05-01), Graham

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