Repairable amorphous metal transformer joint

Details Repairable amorphous metal transformer joint Repairable amorphous metal transformer joint

1996-01-31

1997-03-04

Kozma, Thomas J.

Inductor devices

With core clamps, wedges or fasteners

336213, 336217, 336234, H01F 2726, H01F 2730

Patent

active

056083718

ABSTRACT:
A method of making a repairable transformer having an amorphous metal core. The three uncut legs of an annealed wound amorphous metal core are covered with an adhesive material while leaving the cut leg and both adjoining radii covered, but not bonded. The core joint is opened and coils are placed over the legs that adjoin the cut leg. The core joint is closed and the edges of the joint and both adjoining radii are covered with an inner layer of porous material which is secured by an outer wrap of electrical grade steel. The resulting transformer can be easily repaired by unwrapping away the porous material that covers the cut leg and the adjoining radii, opening the core joint, replacing a defective coil or core, reclosing the core joint, and rewrapping the porous material and reclosing the outer layer of electrical grade steel.

REFERENCES:
patent: 2623920 (1952-12-01), Ford
patent: 4529457 (1985-07-01), Kushnick
patent: 4673907 (1987-06-01), Lee
patent: 4734975 (1988-04-01), Ballard et al.
patent: 4789849 (1988-12-01), Ballard et al.
patent: 4892773 (1990-01-01), Chenoweth et al.
patent: 4893400 (1990-01-01), Chenoweth

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