Inductor devices – Winding with terminals – taps – or coil conductor end...
Patent
1993-07-01
1994-10-25
Kozma, Thomas J.
Inductor devices
Winding with terminals, taps, or coil conductor end...
336210, 336215, 336219, H01F 2726, H01F 2730
Patent
active
053593146
ABSTRACT:
This transformer core and coil assembly comprises (a) a low voltage coil surrounding a coil window and including first and second coil legs on opposite sides of the coil window, (b) a first plurality of side-by-side amorphous-steel core loops surrounding one of the coil legs, and (c) a second plurality of side-by-side amorphous-steel core loops surrounding the other of the coil legs. Extending between said coil legs in a position between two of said side-by-side core loops in the first plurality and between two of said side-by-side loops in the second plurality is a brace of plate form and of electrical insulating material for blocking motion of said coil legs toward each other in response to coil-collapsing forces developed by short-circuit currents through the low voltage coil, thereby protecting the amorphous-steel core loops from damage by these short-circuit produced forces tending to collapse the coil.
REFERENCES:
patent: 3082390 (1963-03-01), Peterson
patent: 3374453 (1968-03-01), Broverman
patent: 4663605 (1987-05-01), Lee
patent: 4673907 (1987-06-01), Lee
patent: 4707678 (1987-11-01), Siman
patent: 4734975 (1988-04-01), Ballard et al.
Bulletin GEA 11085A, dated Nov. 1984, Three-Phase Pad-Mounted Transformers; 8 pages; General Electric Company, Hickory, N.C.
McCain William E.
McQuay Edgar E.
Sinha Ram R. P.
Freedman William
General Electric Company
Kozma Thomas J.
Lampe, Jr. Robert C.
McGiness James E.
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