ELECTROMECHANICAL DEVICE FOR PROGNOSTIC AND DIAGNOSTIC HEALTH ASSESSMENT OF A POWER CIRCUIT BREAKER'S POWER TRANSMISSION AND DISTRIBUTION SYSTEM IN REAL TIME

• US 20170047184A1
• Filed: 08/13/2015
• Published: 02/16/2017
• Est. Priority Date: 08/13/2015
• Status: Abandoned Application

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: Ashtekar, Koustubh Dnyandeo, Benke, James Jeffery, Chen, Jiong, Yu, Li, Wu, Fangji, Hartzel, Ronald Dale
• Application Number:
  US14/825,243
• Publication Number:
  US 20170047184A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01H 11/0062 Testing or measuring non-electrical properties of switches, e.g. contact velocity monitoring contacts H01H1/0015; monitoring gas density H01H33/563; monitoring vacuum H01H33/668; calibrating H01H69/01; adjusting H01H71/74; testing of electrical properties G01R31/333
• 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
• CPC Class Codes: H01H 71/04 Means for indicating condition of the switching device by means of an auxiliary contact H01H71/46

Abstract

A component monitoring system structured to monitor circuit breaker assembly component characteristics is provided. The component monitoring system includes a record assembly, a number of sensor assemblies, a comparison assembly, and an output assembly. The record assembly includes selected nominal data for a selected circuit breaker component. The sensor assembly is structured to measure a number of actual component characteristics of a selected circuit breaker component and to transmit actual component characteristic output data. The comparison assembly is structured to receive an electronic signal from said record assembly and said sensor assemblies, to compare said sensor assembly actual component characteristic output data to said selected nominal data and to provide an indication signal as to whether said sensor assembly output data is acceptable when compared to the selected nominal data. The output assembly includes a communication assembly and an output device.

Claims

1. A circuit breaker assembly component monitoring system structured to monitor circuit breaker assembly component characteristics, said system comprising:

a record assembly including selected nominal data for a selected circuit breaker component;

a number of sensor assemblies structured to measure a number of actual component characteristics of a number of selected circuit breaker components and to transmit actual component characteristic output data;

a comparison assembly structured to receive an electronic signal from said record assembly and said sensor assemblies, to compare said sensor assembly actual component characteristic output data to said selected nominal data and to provide an indication signal as to whether said sensor assembly output data is acceptable when compared to the selected nominal data;

an output assembly including a communication assembly and an output device;

said communication assembly structured to receive said indication signal from said comparison assembly and to communicate a signal to said output device;

each sensor assembly in electronic communication with said comparison assembly; and

said comparison assembly in electronic communication with said communication assembly.

2. The component monitoring system of claim 1 wherein:

said comparison assembly includes a processing assembly, an input/output device, and a comparison module;

said processing assembly structured to execute said comparison module; and

said comparison assembly structured to compare said sensor assembly actual component characteristic output data to said selected nominal data and to provide an indication signal representing an indication of remaining useful life for a selected circuit breaker component.

3. The component monitoring system of claim 2 wherein:

the indication of remaining useful life is calculated according to the equation;

y₁=β

₁ƒ

₁(x_1i)+β

₂ƒ

₂(x₂₁)+β

₃ƒ

₃(x₃₁)+ . . . +β

_kƒ

_k(x_k1)+ε

₁

wherein;

y=actual component characteristic output data at certain times size (n×

1)

T=Time function or forms of functions containing time (t)∈

(ƒ

₁(t₁), ƒ

₂(t₂), . . . , ƒ

_k((t_k))

X=relation between dependent and independent variables ∈

(ƒ

₁(x₁), ƒ

₂(x₂), . . . , ƒ

_k ((x_k))

β

=Vector with k parameters forming model equation=[β

₁β

₂ . . . β

_k]^Tƒ

₁(x),ƒ

₂(t)

ε

˜

N(O,σ

²)=independent and identically distributed random variable (iid) ∈

(ε

₁, ε

₂, ε

₃, . . . , ε

_n).

4. The component monitoring system of claim 2 wherein:

the indication of remaining useful life is calculated according to the equation;

5. The component monitoring system of claim 2 wherein:

the indication of remaining useful life is calculated according to the equation;

6. The component monitoring system of claim 2 wherein said comparison module includes a stress sensor module, a control circuit monitoring module, an open/close evaluation module and charging monitoring module.

7. The component monitoring system of claim 2 wherein:

said comparison assembly includes a modular housing assembly;

said modular housing assembly including a number of sidewalls and a selectable coupling;

said modular housing assembly sidewalls defining an enclosed space; and

said processing assembly disposed within said modular housing assembly enclosed space.

8. The component monitoring system of claim 5 wherein:

said modular housing assembly includes a number of communication ports;

each said modular housing assembly communication port in electronic communication with said processing assembly; and

each said modular housing assembly communication port in electronic communication with a sensor assembly.

9. The component monitoring system of claim 1 wherein said record assembly includes initial selected nominal data and at least one of acquired selected nominal data or local acquired selected data.

10. The component monitoring system of claim 1 wherein said selected nominal data is stored as a reduced data set.

11. A circuit breaker assembly comprising:

an operating mechanism including a number of components;

a component monitoring system structured to monitor circuit breaker assembly component characteristics, said component monitoring system including a record assembly, a number of sensor assemblies, a comparison assembly, and an output assembly;

said record assembly including selected nominal data for a selected circuit breaker component;

each sensor assembly structured to measure a number of actual component characteristics of a number of selected circuit breaker components and to transmit actual component characteristic output data;

said comparison assembly structured to receive an electronic signal from said record assembly and said sensor assemblies, to compare said sensor assembly actual component characteristic output data to said selected nominal data and to provide an indication signal as to whether said sensor assembly output data is acceptable when compared to the selected nominal data;

said output assembly including a communication assembly and an output device;

said communication assembly structured to receive said indication signal from said comparison assembly and to communicate a signal to said output device; and

each sensor assembly in electronic communication with said comparison assembly;

said comparison assembly in electronic communication with said communication assembly.

12. The circuit breaker assembly of claim 11 wherein:

said comparison assembly includes a processing assembly, an input/output device, and a comparison module;

said processing assembly structured to execute said comparison module; and

said comparison assembly structured to compare said sensor assembly actual component characteristic output data to said selected nominal data and to provide an indication signal representing an indication of remaining useful life for a selected circuit breaker component.

13. The circuit breaker assembly of claim 12 wherein:

the indication of remaining useful life is calculated according to the equation;

y₁=β

₁ƒ

₁(x_1i)+β

₂ƒ

₂(x₂₁)+β

₃ƒ

₃(x₃₁)+ . . . +β

_kƒ

_k(x_k1)+ε

₁

wherein;

y=actual component characteristic output data at certain times size (n×

1)

T=Time function or forms of functions containing time (t)∈

(ƒ

₁(t₁), ƒ

₂ (t₂), . . . , ƒ

_k((t_k))

X=relation between dependent and independent variables ∈

(ƒ

₁(x₁), ƒ

₂(x₂), . . . , ƒ

_k ((x_k))

β

=Vector with k parameters forming model equation=[β

₁β

₂ . . . β

_k]^Tƒ

₁(x),ƒ

₂ (t)

δ

˜

N(O,σ

²)=independent and identically distributed random variable (iid) ∈

(ε

₁,ε

₂,ε

₃, . . . , ε

_n).

14. The circuit breaker assembly of claim 12 wherein:

the indication of remaining useful life is calculated according to the equation;

15. The circuit breaker assembly of claim 12 wherein:

the indication of remaining useful life is calculated according to the equation;

16. The circuit breaker assembly of claim 12 wherein said comparison module includes a stress sensor module, a control circuit monitoring module, an openiclose evaluation module and charging monitoring module.

17. The circuit breaker assembly of claim 12 wherein:

said comparison assembly includes a modular housing assembly;

said modular housing assembly including a number of sidewalls and a selectable coupling;

said modular housing assembly sidewalls defining an enclosed space; and

said processing assembly disposed within said modular housing assembly enclosed space.

18. The circuit breaker assembly of claim 15 wherein:

said modular housing assembly includes a number of communication ports;

each said modular housing assembly communication port in electronic communication with said processing assembly; and

each said modular housing assembly communication port in electronic communication with a sensor assembly.

19. The circuit breaker assembly of claim 11 wherein said record assembly includes initial selected nominal data and at least one of acquired selected nominal data or local acquired selected data.

20. The circuit breaker assembly of claim 11 wherein said selected nominal data is stored as a reduced data set.