Inductor devices – With means to change coil length or connections – Series change
Patent
1988-11-29
1989-09-05
Kozma, Thomas J.
Inductor devices
With means to change coil length or connections
Series change
174114R, 174119R, 336186, 336187, 336223, H01F 2112, H01F 2718
Patent
active
048642665
ABSTRACT:
A high-voltage winding for core-form power transformers is disclosed that uses two different conductor configurations within a single coil to minimize eddy current losses. The winding includes a first elongated conductor bundle formed from a plurality of thin enamel coated conductor ribbons arranged in side by side relation. A plurality of second elongated conductor bundles are each formed from at least one bundle section having a multiplicity of elongated insulated conductor strands arranged in side by side relation. Each of the conductor strands is less than 40 mils thick. The coil includes a top end section, a body section and a bottom end section. The body section is spirally wound with the first conductor bundle. The top and bottom end sections are wound with the second conductor bundles. In windings that include tap connectors, the tap section is also wound with one of the second conductor bundles.
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Feather Landis E.
Holm Richard D.
Martincic Paul W.
Thompson Richard E.
Electric Power Research Institute Inc.
Kozma Thomas J.
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