Power source system with multiple electrical outputs

Patent metadata

Field	Value
Publication number	US-9735588-B2
Application number	US-201615209674-A
Country	US
Kind code	B2
Filing date	Jul 13, 2016
Priority date	Jan 13, 2015
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

A system providing a power source includes an electrical input and multiple electrical outputs. The electrical input is couplable to a current clamp that selectively clamps around at least one electrical conductor. A transformer coupled to the electrical input receives an input electrical signal from the at least one electrical conductor and produces an output electrical signal that is electrically isolated from the input electrical signal. Conversion circuitry electrically converts the output electrical signal to a converted electrical signal that is usable to power multiple electrical devices. Distribution circuitry distributes the converted electrical signal to the multiple electrical outputs, wherein each electrical output is couplable to an electrical device to provide power to the electrical device.

First claim

The invention claimed is:

1. A system providing a power source, comprising:
a current clamp that forms a current transformer, wherein the current clamp is configured to be clamped around an electrical conductor and output an induced current when a varying current is flowing through the electrical conductor; and
a power distribution unit electrically coupled to the current clamp, wherein the power distribution unit includes:
multiple electrical outputs;
conversion circuitry that electrically converts the induced current to a converted current that is usable to power multiple electrical devices; and
distribution circuitry that distributes the converted current to the multiple electrical outputs, wherein each electrical output is couplable to an electrical device to provide power to the electrical device, and wherein the distribution circuitry includes one or more gating elements that control an amount of converted current that flows to one or more of the multiple electrical outputs.

2. The system of claim 1 , wherein the induced current is an alternating current and the conversion circuitry electrically converts the induced current to a direct current.

3. The system of claim 1 , wherein the current clamp outputs the induced current at a first voltage and the conversion circuitry electrically converts the induced current to a converted current having a second voltage lower than the first voltage.

4. The system of claim 1 , wherein the distribution circuitry distributes the converted current equally to the multiple electrical outputs.

5. The system of claim 1 , wherein the distribution circuitry selectively distributes different amounts of the converted current to different electrical outputs of the multiple electrical outputs.

6. The system of claim 1 , wherein the distribution circuitry further includes a sensor operable to sense an amount of current flowing to the multiple electrical outputs, and wherein the one or more gating elements control the amount of converted current that flows to the one or more electrical outputs based on the sensed amount of current.

7. The system of claim 1 , wherein the one or more gating elements selectively control the amount of converted current that flows to an electrical output based on a priority assigned to the electrical output.

8. The system of claim 1 , wherein the one or more gating elements selectively control the amount of converted current that flows to an electrical output based on a location of the electrical output relative to other electrical outputs.

9. The system of claim 1 , wherein the one or more gating elements selectively control the amount of converted current that flows to different electrical outputs during different time periods.

10. A system providing a power source, comprising:
an electrical input and multiple electrical outputs, wherein the electrical input is couplable to a current clamp that selectively clamps around at least one electrical conductor;
a transformer coupled to the electrical input, wherein the transformer produces an output electrical signal that is electrically isolated from current flowing in the at least one electrical conductor;
conversion circuitry that electrically converts the output electrical signal to a converted electrical signal that is usable to power multiple electrical devices; and
distribution circuitry that distributes the converted electrical signal to the multiple electrical outputs, wherein each electrical output is couplable to an electrical device to provide power to the electrical device, and wherein the distribution circuitry includes one or more gating elements that control an amount of the converted electrical signal that is distributed to one or more of the multiple electrical outputs.

11. The system of claim 10 , wherein the current clamp forms the transformer and produces the output electrical signal by induction from an electrical signal flowing in the at least one electrical conductor.

12. The system of claim 10 , wherein the distribution circuitry includes a sensor that senses an amount of current flowing to the multiple electrical outputs, the system further comprising control circuitry that controls an amount of current that flows to one or more of the multiple electrical outputs based on the sensed amount of current.

13. The system of claim 10 , further comprising communication circuitry that communicates with at least one electrical device coupled to at least one electrical output of the multiple electrical outputs and receives data from the at least one electrical device.

14. The system of claim 13 , wherein the communication circuitry receives data from the at least one electrical device via the at least one electrical output to which the electrical device is coupled.

15. The system of claim 13 , wherein the communication circuitry further communicates with a remote computing device and transmits the received data to the remote computing device.

16. The system of claim 10 , further comprising communication circuitry configured to communicate with a remote computing device and receive instructions from the remote computing device, wherein the one or more gating elements control an amount of current that flows to one or more of the multiple electrical outputs based on instructions received from the remote computing device.

17. The system of claim 10 , further comprising communication circuitry configured to communicate with a remote computing device that is not coupled to any of the multiple electrical outputs and transmit information pertaining to operation of the system to the remote computing device.

18. A system providing a power source positionable within an area holding electrical equipment, the system comprising:
a current transformer that is selectively positionable with respect to an electrical conductor of multiple electrical conductors that are located in the area with the electrical equipment such that a varying current flowing through the electrical conductor induces a current in the current transformer;
conversion circuitry electrically coupled to the current transformer, wherein the conversion circuitry electrically converts the current induced in the current transformer to a converted current that is usable to power multiple electrical devices; and
distribution circuitry that distributes the converted current to multiple electrical outputs of a power distribution unit, wherein each electrical output of the power distribution unit is couplable to an electrical device to provide power to the electrical device, and wherein the distribution circuitry includes one or more gating elements that control an amount of converted current that flows to one or more of the multiple electrical outputs,
wherein at least the conversion circuitry, the distribution circuitry, and the multiple electrical outputs are contained within a housing of the power distribution unit, and
wherein the power distribution unit remains in the area where the electrical equipment is located when the current transformer is positioned with respect to the electrical conductor and the converted current is being distributed to the multiple electrical outputs.

19. The system of claim 18 , wherein the current transformer is a current clamp that is clampable around an electrical conductor in the area where the electrical equipment is located.

Assignees

• Fluke Corp

Inventors

• Gilbert John M
• Epperson David L
• Ringsrud Paul A

Classifications

• G01R15/186

  using current transformers with a core consisting of two or more parts, e.g. clamp-on type (G01R15/142 - G01R15/16 take precedence; tong testers G01R1/22) · CPC title

• G01R1/22

  Tong testers acting as secondary windings of current transformers · CPC title

• G01R1/02 Primary

  General constructional details · CPC title

• G01R19/2513

  Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging · CPC title

• G01R15/14

  Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks · CPC title