Voltage harvester for power distribution system devices
AssigneeHubbell Incorporated
InventorsPeter Michael Agliata, Archana Sadhanala
Life of this patent
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Abstract
The present disclosure provides exemplary embodiments of voltage harvesting devices used in power distribution systems, and provides power distribution system architectures utilizing the voltage harvesting devices. Generally, the voltage harvesting devices transform distribution line AC voltages to produce a low wattage output for distribution system communication and control type devices. The voltage harvesting device can operate whether irrespective of the presence of load current.
Claims29
A voltage harvesting device for use in power distribution systems, the voltage harvesting device comprising:
- a housing;
- and
- a transformation circuit within the housing, the transformation circuit including at least one first impedance component and at least one second impedance component, the at least one first impedance component having:
- a positive input capable of being electrically coupled to a loaded or unloaded source line voltage;
- a negative input electrically coupled to the at least one second impedance component;
- and
- an output capable of being coupled to a device, wherein the output and the device both reference a floating ground of the loaded or unloaded source line voltage;
- wherein the first impedance component and the second impedance component are arranged as a voltage divider, the voltage divider producing an AC voltage on the output of the first impedance component that is a higher voltage than the loaded or unloaded source line voltage.
A voltage harvesting device for use in power distribution systems, the voltage harvesting device comprising:
- a housing;
- and
- a transformation circuit within the housing, the transformation circuit including:
- a transformer having a primary side with a first input terminal electrically connected to a loaded or unloaded line voltage source and a second input terminal, and a secondary side of the transformer having a first output terminal capable of being electrically connected to a floating ground referenced to the loaded or unloaded source line voltage and a second output terminal capable of producing an AC voltage above the voltage of the loaded or unloaded line voltage source;
- and
- at least one resistor having a first terminal electrically connected to the second input terminal of the transformer and a second terminal connected to actual ground.
A voltage harvesting circuit for use in power distribution systems, the voltage harvesting circuit comprising a transformer having a primary side with a first input terminal electrically connected to a loaded or unloaded line voltage source and a second input terminal, and a secondary side of the transformer having a first output terminal capable of being electrically connected to a floating ground referenced to the loaded or unloaded source line voltage and a second output terminal capable of producing an AC voltage above the voltage of the loaded or unloaded line voltage source;
- and at least one impedance component having a first terminal electrically connected to the second input terminal of the transformer and a second terminal connected to actual ground.
Dependencies are inferred from the claim text.