H - Electricity
01
F
306/313, 336/43
H01F 27/04 (2006.01) H01F 29/02 (2006.01) H01H 19/12 (2006.01)
Patent
CA 1149431
ABSTRACT OF THE DISCLOSURE A device for transformation of alternating current- voltage which includes a core, a primary winding subassembly and a secondary winding subassembly. One or both of the primary and secondary winding subassemblies consists of at least one pair of equal turn and approximately equal resistance windings wrapped co-directionally around the core, and each having an equal number of tapped sections. A special tandem switch selectively interconnects tapped sections within winding pairs to provide a desired output terminal winding array such that all sections connected through the switch are energized, and are in the current carrying path at all selected switch positions, with selectively seriesed and selectively paralleled portions of the switch-coupled winding pairs being selectively encircuited at each switch position. The functioning primary and secondary windings are asymmetrically disposed in relation to each other at most of the switch positions, and the leakage reactance is unequal through the several paired windings when they are connected by said transformer switch to place less than all of the tapped sections of each in parallel.
406537
Owen Donald W.
Ridout & Maybee Llp
LandOfFree
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