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Ferroresonant Transformer Construction

IP.com Disclosure Number: IPCOM000050784D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 76K

Publishing Venue

IBM

Related People

Deloye, MJ: AUTHOR [+4]

Abstract

Presently used ferroresonant transformers contain a hand-taped bobbin which is costly to build, is externally connected to an oil-filled capacitor, and requires internal separations and shielding between certain windings which add to the cost. A transformer of this type is shown in Fig. 1.

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Ferroresonant Transformer Construction

Presently used ferroresonant transformers contain a hand-taped bobbin which is costly to build, is externally connected to an oil-filled capacitor, and requires internal separations and shielding between certain windings which add to the cost. A transformer of this type is shown in Fig. 1.

The construction of such transformers may be simplified by replacing the oil- filled capacitor with a metallized foil capacitor and arranging the windings of the transformer on molded plastic bobbins, as shown in Fig. 2. Bobbin 1 supports the primary winding, and bobbin 2 supports resonant and secondary windings. Bobbin 2 includes a compartment 3 for housing the resonant capacitor 4. Compartment 3 has slots 5 for connecting the resonant capacitor leads to the resonant winding within the bobbin enclosure.

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