Smart power monitoring for welding and cutting apparatus

Patent metadata

Field	Value
Publication number	US-10955869-B2
Application number	US-201715858048-A
Country	US
Kind code	B2
Filing date	Dec 29, 2017
Priority date	Dec 30, 2016
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

An indication of a type of circuit breaker through which a powered device is connected to a power source is received at a processor. A signal from a sensor indicating a level of power flow from the power source to the powered device is received at the processor. The power flow to the powered device is altered by the processor based upon the received signal and the type of circuit breaker such that the power flow does not cause the circuit breaker to interrupt the power flow to the powered device.

First claim

What is claimed is:

1. A method comprising:
receiving, at a processor, via a user interface, an indication of an amperage rating, selected from a plurality of presented ratings in the form of images of electrical outlets, of a circuit breaker through which a powered device is connected to a power source;
receiving, at the processor, a signal from a sensor indicating a level of power flow from the power source to the powered device;
altering, via the processor, the power flow to the powered device based upon the received signal and the amperage rating of the circuit breaker such that the power flow does not cause the circuit breaker to interrupt the power flow to the powered device.

2. The method of claim 1 , wherein the powered device comprises a welding device.

3. The method of claim 1 , wherein altering the power flow to the powered device comprises:
determining, via the processor, an average of the power flow from the signal; and
comparing the average of the power flow to a predetermined value associated with the circuit breaker.

4. The method of claim 1 , wherein altering the power flow to the powered device comprises drawing current through the circuit breaker that exceeds a current rating of the circuit breaker for a period of time insufficient to trip the circuit breaker.

5. The method of claim 1 , further comprising determining, via the processor, a threshold power flow through the circuit breaker over a period of time that will cause the circuit breaker to interrupt the power flow to the powered device from the indication, and
wherein altering the power flow to the powered device such that an average power flow to the powered device over the period of time does not exceed the threshold power flow through the circuit breaker.

6. The method of claim 1 , wherein receiving the signal comprises receiving a signal indicating one or more of a voltage, an amperage, an instantaneous level of the power flow, an average level of the power flow, and/or a rate of change of the power flow.

7. An apparatus comprising:
a sensor;
a powered device, and
one or more processors communicatively connected to the sensor and the powered device, wherein the one or more processors are configured to:
receive via a user interface, an indication of an amperage rating, selected from a plurality of presented ratings in the form of images of electrical outlets, of a circuit breaker through which the powered device is connected to a power source;
receive a signal from the sensor indicating a level of power flow from the power source to the powered device;
alter the power flow to the powered device based upon the received signal and the amperage rating of the circuit breaker such that the power flow does not cause the circuit breaker to interrupt the power flow to the powered device.

8. The apparatus of claim 7 , wherein the powered device comprises a welding device.

9. The apparatus of claim 7 , wherein the one or more processors are configured to alter the power flow to the powered device by:
determining an average of the power flow from the signal; and
comparing the average of the power flow to a predetermined value associated with the circuit breaker.

10. The apparatus of claim 7 , wherein the processor is configured to alter the power flow to the powered device by drawing current through the circuit breaker that exceeds a current rating of the circuit breaker for a period of time insufficient to trip the circuit breaker.

11. The apparatus of claim 7 , wherein the one or more processors are configured to determine from the indication a threshold power flow through the circuit breaker over a period of time that will cause the circuit breaker to interrupt the power flow to the powered device, and
wherein the one or more processors are configured to alter the power flow to the powered device such that an average power flow to the powered device over the period of time does not exceed the threshold power flow through the circuit breaker over the period of time.

12. The apparatus of claim 7 , wherein the signal comprises one or more of a voltage, an amperage, an instantaneous level of the power flow, an average level of the power flow, and/or a rate of change of the power flow.

13. A tangible, non-transitory computer readable storage medium encoded with instructions that when executed cause one or more processors to:
receive via a user interface, an indication of an amperage rating, selected from a plurality of presented ratings in the form of images of electrical outlets, of a circuit breaker through which a powered device is connected to a power source;
receive a signal from a sensor indicating a level of power flow from the power source to the powered device;
alter the power flow to the powered device based upon the received signal and the amperage rating of the circuit breaker such that the power flow does not cause the circuit breaker to interrupt the power flow to the powered device.

14. The computer readable storage medium of claim 13 , wherein the powered device comprises a welding device.

15. The computer readable storage medium of claim 13 , wherein the instructions cause the one or more processors to alter the power flow to the powered device by:
determining, via the processor, an average of the power flow from the signal; and
comparing the average of the power flow to a predetermined value associated with the circuit breaker.

16. The computer readable storage medium of claim 13 , wherein the instructions further cause the one or more processors to determine a threshold power flow through the circuit breaker over a period of time that will cause the circuit breaker to interrupt the power flow to the powered device from the indication, and
wherein the instructions cause the one or more processors to alter the power flow to the powered device such that an average power flow to the powered device over the period of time does not exceed the threshold power flow through the circuit breaker.

17. The computer readable storage medium of claim 13 , wherein the instructions cause the one or more processors to receive the signal by receiving a signal indicating one or more of a voltage, an amperage, an instantaneous level of the power flow, an average level of the power flow, and/or a rate of change of the power flow.

Assignees

• Esab Group Inc

Inventors

• Gharib Awad
• Mantell Lee

Classifications

• H02H3/093

  with timing means {(in general H02H3/027; thermal delay H02H3/085; timing means for undervoltage protection H02H3/247)} · CPC title

• H02H3/006

  Calibration or setting of parameters · CPC title

• G08C19/02

  in which the signal transmitted is magnitude of current or voltage (G08C19/36, G08C19/38 take precedence) · CPC title

• G05F5/00 Primary

  Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output · CPC title

• H01H75/02

  Details · CPC title