METHOD, DEVICE, AND SYSTEM FOR MONITORING A COMPONENT

• US 20130073257A1
• Filed: 09/19/2011
• Published: 03/21/2013
• Est. Priority Date: 09/19/2011
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Williams, Craig Benjamin, Greenwood, Todd Elliott
• Application Number:
  US13/236,152
• Publication Number:
  US 20130073257A1
• Time in Patent Office: Days
• US Class Current: 702/179
• CPC Class Codes: G01R 31/1254 of gas-insulated power appliances or vacuum gaps testing switches G01R31/327; detecting electrical or mechanical defects in encased switchgear H02B13/065
• CPC Class Codes: G01R 31/3274 Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance measuring contact resistance G01R27/205
• CPC Class Codes: H01H 1/0015 Means for testing or for inspecting contacts, e.g. wear indicator measuring circuits G01R31/3274
• CPC Class Codes: H01H 2071/044 Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures

Abstract

A system includes a sensor configured to provide a signal related to an operating condition of a component, a memory for storing values representative of the operating condition, and a processor coupled to the sensor and to the memory. The processor is programmed to calculate a first value of the operating condition during a first period of time based on the stored values, calculate a second value of the operating condition during a second period of time using the first value, and determine a status of the component using the second value.

Claims

1. A system comprising:

a sensor configured to provide a signal related to an operating condition of a component;

a memory for storing values representative of the operating condition; and

a processor coupled to said sensor and to said memory, said processor programmed to;

calculate a first value of the operating condition during a first period of time based on the stored values;

calculate a second value of the operating condition during a second period of time using the first value; and

determine a status of the component using the second value.

2. A system in accordance with claim 1, wherein the first value is one of an average, a rolling average, a mode, a median, a range, and a standard deviation of the operating condition during the first period of time.

3. A system in accordance with claim 1, wherein the second value is one of an average, a rolling average, a mode, a median, a range, and a standard deviation of the operating condition during the second period of time.

4. A system in accordance with claim 1, wherein said processor is programmed to calculate the second value of the operating condition of the component over an operational lifetime of the component.

5. A system in accordance with claim 4, wherein said processor is programmed to determine the status of the component by:

receiving an expected lifetime of the component based on the second value; and

subtracting a duration of the operational lifetime from the expected lifetime of the component.

6. A system in accordance with claim 5, wherein said processor is programmed to determine the status of the component to be a remaining useful life of the component.

7. A system in accordance with claim 6, wherein said processor is further programmed to issue a notification if the remaining useful life is less than a threshold value.

8. A system in accordance with claim 7, wherein the threshold value is based on the expected lifetime of the component.

9. A system in accordance with claim 7, wherein said processor is further programmed to implement an action to extend the remaining useful life of the component if the remaining useful life is less than the threshold value.

10. A system in accordance with claim 9, wherein the action includes at least one of reducing an amount of current flowing through the component, reducing a temperature of the component, and reducing a humidity of air in close proximity to the component.

11. A system in accordance with claim 9, wherein the component is a trip mechanism configured to interrupt a current provided to a load, said processor is programmed to implement the action by adjusting a trip threshold for the trip mechanism.

12. A system in accordance with claim 1, wherein the status is at least one of a remaining useful life of the component, a remaining thickness of an electrical contact within the component, a normal operating range of the operating condition of the component, a recommended operating range of the operating condition of the component, a notification that the operating condition of the component is outside of an operating range of the component, an identification of a maintenance issue, and an identification of a change in the operation of the component.

13. A circuit protection device for use in electrically protecting a load, said circuit protection device comprising:

a trip mechanism configured to interrupt a current provided to the load;

a sensor configured to provide a signal related to an operating condition of said trip mechanism;

a memory for storing values representative of the operating condition; and

a processor coupled to said trip mechanism, to said sensor, and to said memory, said processor programmed to;

calculate a first value of the operating condition during a first period of time based on the stored values;

calculate a second value of the operating condition during a second period of time using the first value; and

determine a status of said trip mechanism using the second value.

14. A circuit protection device in accordance with claim 13, wherein the status is a remaining useful life of said trip mechanism and wherein said processor is programmed to calculate the second value of the operating condition of said trip mechanism over an operational lifetime of said trip mechanism.

15. A circuit protection device in accordance with claim 14, wherein said processor is programmed to determine the remaining useful life of said trip mechanism by:

receiving an expected lifetime of said trip mechanism based on the second value; and

subtracting a duration of the operational lifetime from the expected lifetime of said trip mechanism.

16. A circuit protection device in accordance with claim 15, wherein said processor is further programmed to issue a notification if the remaining useful life is less than a threshold value.

17. A circuit protection device in accordance with claim 16, wherein the threshold value is based on the expected lifetime of said trip mechanism.

18. A circuit protection device in accordance with claim 16, wherein said processor is further programmed to implement an action to extend the remaining useful life of said trip mechanism if the remaining useful life is less than the threshold value.

19. A circuit protection device in accordance with claim 16, wherein said processor is programmed to implement the action by adjusting a trip threshold for said trip mechanism.

20. A method for monitoring a component, said method comprising:

measuring an operating condition of the component, wherein the operating condition includes a temperature of the component;

storing values representative of the operating condition in a memory;

calculating, by a processor, a first value of the operating condition during a first period of time based on the stored values;

calculating, by a processor, a second value of the operating condition during a second period of time using the first value; and

determining, by a processor, a remaining useful life of the component using the second value.

21. A method in accordance with claim 20, wherein calculating the second value comprises calculating the second value of the operating condition of the component over an operational lifetime of the component.

22. A method in accordance with claim 21, wherein determining the remaining useful life of the component comprises:

receiving an expected lifetime of the component based on the second value; and

subtracting a duration of the operational lifetime from the expected lifetime of the component.

23. A method in accordance with claim 22, further comprising issuing a notification if the remaining useful life is less than a threshold value.

24. A method in accordance with claim 23, further comprising implementing an action to extend the remaining useful life of the component if the remaining useful life is less than the threshold value.

25. A method in accordance with claim 24, wherein the component is a trip mechanism configured to interrupt a current provided to a load, and wherein implementing an action comprises adjusting a trip threshold for the trip mechanism.