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.
Claims24
A voltage harvesting device for use in a power distribution system, the voltage harvesting device comprising:
- a transformation circuit comprising,
- at least one first impedance component,
- at least one second impedance component comprising,
- a first input for coupling to a loaded or unloaded source line voltage,
- a second input for coupling to the at least one first impedance component, and
- an output for coupling to a load,
- wherein an AC voltage on the output of the second impedance component is a higher voltage than the loaded or unloaded source line voltage;
- and
- a voltage converter for converting the AC voltage on the output of the second impedance component to a DC voltage usable by at least one distribution system communication and control device operatively associated with the voltage harvesting device.
A voltage harvesting device for use in harvesting power in high voltage AC power distribution systems, the voltage harvesting device comprising:
- a transformation circuit comprising,
- a transformer comprising,
- a primary side with a first input for electrical connection to a loaded or unloaded AC line voltage source, and a second input, and
- a secondary side having a first output for electrical connection to a floating ground referenced to the loaded or unloaded source AC line voltage and a second output providing an AC voltage above a voltage of the loaded or unloaded AC line voltage source;
- at least one resistive element electrically connected between the second input of the transformer and actual ground;
- and
- a voltage converter for converting the AC voltage on the second output of the secondary side to a DC voltage usable by at least one distribution system communication and control device operatively associated with the voltage harvesting device.
Dependencies are inferred from the claim text.