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US 2010/0301833 A1Published application
Load sensing high efficiency transformer assembly
AssigneeWarner Power, LLC
InventorDerek Foster
Life of this patent
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Abstract
A load sensing, high efficiency, modular transformer assembly for use in power distribution networks. The control of each module of the modular assembly of high efficiency transformers results in considerable energy savings when compared to conventional transformers. The assembly is controlled according to the requirements of the connected load, with modules being switched in and out of circuit, thereby resulting in a transformer with a higher efficiency than is possible with currently available distribution transformers of equivalent capacity. Connection and disconnection of the transformer modules is accomplished with the use of a purpose designed electronic controller.
Claims15
A three module transformer assembly, comprising:
- a first transformer module having at least one input and at least one output, wherein said at least one input of said first transformer module is connected to an input;
- a second transformer module having at least one input and at least one output, wherein said at least one input of said second transformer module is connected to an input source by means of a control relay, said control relay responsive to a second transformer module control signal, for energizing and de-energizing said second transformer module;
- a third transformer module having at least one input and at least one output, wherein said at least one input of said third transformer module is connected to an input source by means of a control relay, said control relay responsive to a third transformer module control signal, for energizing and be energized and said third transformer module;
- and
- a controller, coupled to said output of said first, second and third transformer modules and to said second and third transformer module control relay, and configured for sensing the output current of said transformer modules being drawn by a load coupled to said first, second and third transformer module outputs, for determining whether said output current of all of said transformer modules is equal to greater than one of said transformer modules or greater than two of said transformer modules, and responsive to said determination, for providing one or more of a second and third transformer module control signal for energizing one or more of said second and third transformer modules in response to said output current of said transformer modules being drawn by a load.
2 more elements
A multi-module transformer assembly, comprising:
- a plurality of transformer modules, each transformer module having at least one input and at least one output, wherein one of said plurality of transformer modules is continuously connected to an input source and to an output load, and wherein said at least one input of each of the remaining of said plurality of transformer modules is connected to said input source by means of a control relay, said control relay responsive to a predetermined transformer module control signal, each predetermined transformer module control signal configured for energizing and de-energizing a corresponding one of said plurality of transformer modules;
- and
- a controller, coupled to said output of each of said plurality of transformer modules, and configured for sensing the output current of said plurality of transformer modules being drawn by a load coupled to said plurality of transformer module outputs, for determining whether said output current of said plurality of transformer modules is equal to greater than one of said transformer modules or greater than two or more of said transformer modules, and responsive to said determination, for providing one or more of a transformer module control signal for energizing one or more of said plurality of transformer modules in response to said output current of said transformer modules being drawn by a load.
A multi-module transformer assembly, comprising:
- a plurality of transformer modules, each transformer module having at least one input and at least one output, wherein one of said plurality of transformer modules is continuously connected to an input source and to an output load, and wherein said at least one input of each of the remaining ones of said plurality of transformer modules is connected to said input source by means of a control relay, said control relay responsive to a predetermined transformer module control signal, each predetermined transformer module control signal configured for energizing and de-energizing a corresponding one of said plurality of transformer modules;
- and
- a controller, coupled to said output of each of said plurality of transformer modules, and configured for sensing the output current of said plurality of transformer modules being drawn by a load coupled to said plurality of transformer module outputs, for determining whether said output current of said plurality of transformer modules is equal to greater than one of said transformer modules or greater than two or more of said transformer modules, and responsive to said determination, for providing one or more of a transformer module control signal for energizing one or more of said plurality of transformer modules in response to said output current of said transformer modules being drawn by a load, and wherein said controller is further configured to provide, on a rotating basis, each of said transformer module control signals for each of said plurality of transformer modules, such that when one or more transformer modules are deactivated, said controller rotates through the activation and deactivation of each of said plurality of transformer modules thereby ensuring that all said plurality of transformer modules are in generally regular use.
Dependencies are inferred from the claim text.