Circuit protector monitoring and management systems and methods

• US 8,068,323 B2
• Filed: 01/26/2009
• Issued: 11/29/2011
• Est. Priority Date: 01/26/2009
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Cooper Technologies Company (Eaton Corporation PLC.)
• Inventors: Mughal, Owais Mahmood, Doljack, Frank Anthony
• Primary Examiner(s): Nguyen; Danny
• Application Number:
  US12/359,577
• Publication Number:
  US 20100188187A1
• Time in Patent Office: 1,037 Days
• Field of Search: 361/103, 361/104, 337/225
• US Class Current: 361/103
• CPC Class Codes: H01H 2300/032 using RFID technology in switching devices
• CPC Class Codes: H01H 85/24 Means for preventing insertion of incorrect fuse
• CPC Class Codes: H01H 85/34 Distinguishing marks, e.g. colour coding
• CPC Class Codes: H01H 9/168 making use of an electromagnetic wave communication
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/14 Protecting elements, switches, relays or circuit breakers

Abstract

Electronic systems and methods automatically monitor a presence, absence, and change of circuit protectors at specified locations in an electrical system. Circuit protectors may be automatically detected and correlated with specific circuit protection holders as they are installed and replaced in the electrical system. Determinations may be made regarding whether the installation or replacement is proper or improper for optimal protection of the electrical system.

Claims

1. A circuit protector management system comprising:

at least one circuit protection holder provided with a holder identification element;

a detector recognizing the holder identification element; and

a processor based device configured to correlate the holder identification tag with an installed circuit protector.

2. The system of claim 1, wherein the circuit protector is adapted to provide overcurrent protection.

3. The system of claim 1, wherein the circuit protector is a fuse.

4. The system of claim 1, wherein the holder identification element comprises a radio frequency identification tag.

5. The system of claim 1, wherein the detector wirelessly communicates with the holder identification element.

6. The system of claim 1, wherein the holder identification element is adhered to a surface of the circuit protection holder, thereby retrofitting the circuit protect holder to the circuit protector management system.

7. The system of claim 1, wherein the circuit protector includes a circuit protector identification element, the circuit protector identification element also recognized by the detector.

8. The system of claim 7, wherein the processor based device correlates the holder identification tag with an installed circuit protector when the circuit protector identification element is recognized by the detector and when the holder identification element is not recognized by the detector.

9. The system of claim 7, wherein the processor based device is configured to compare the correlated holder identification element and the circuit protector identification element to determine whether the circuit protector is proper or improper.

10. The system of claim 1, wherein the circuit protector holder is mounted to an electrical panel, the system further comprising an antenna coupled to the panel and communicating with the detector.

11. The system of claim 1, wherein the detector is a radio frequency identification reader device.

12. The system of claim 1, wherein the detector is further configured to recognize items of personal protective equipment.

13. The system of claim 12, wherein the detector is configured to determine whether recognized items of personal protective equipment are proper or improper.

14. The system of claim 1, further comprising a lockout device, the processor based device operating the lockout device to permit or deny access to the circuit protection holder.

15. The system of claim 1, wherein the circuit protector holder identification element is disabled when the circuit protector is installed to the circuit protection holder.

16. A circuit protector management system comprising:

a fuse holder adapted to receive at least one electrical fuse;

at least one fuse holder tag coupled to the fuse holder; and

a reader configured to communicate with the at least one fuse holder tag, wherein the reader communicates with the at least fuse holder tag when the fuse holder is empty and the reader is prevented from communicating with the at least one fuse holder tag when the electrical fuse is inserted in the fuse holder.

17. The system of claim 16 wherein the electrical fuse includes a fuse identification element, the reader communicating with the fuse identification element to detect installation of the fuse.

18. The system of claim 17 wherein the reader is a radio frequency identification interrogator device.

19. The system of claim 17, further comprising a processor based device configured to identify each fuse installed in the fuse holder.

20. The system of claim 19, wherein the processor based device is further configured to determine, based upon communications between the reader and the at least one fuse holder tag, whether or not an installed fuse is proper or improper.

21. The system of claim 19, wherein the processor based device is configured to generate a notification of an improper fuse.

22. The system of claim 16, wherein the fuse holder is mounted to lockable electrical panel.

23. The system of claim 22, further comprising a processor based device and a lockout device operable by the processor based device.

24. The system of claim 23, wherein the reader is configured to communicate with personal protective equipment tags, and the processor based device operating the lockout device in response to detected personal protective equipment tags.

25. A method of managing circuit protectors in an electrical system, the method executable by an electronic management system, the method comprising:

electronically detecting at a first point in time a presence of at least one circuit protection holder identification element corresponding to a circuit protection holder;

electronically detecting at a second point in time a presence of at least one circuit protector identification element corresponding to a circuit protector; and

electronically determining whether or not the circuit protector is installed to the circuit protection holder.

26. The method of claim 25, wherein determining whether or not the circuit protector is installed comprises:

electronically detecting a condition wherein the circuit protector identification element is present but the circuit protection holder identification element is not present.

27. The method of claim 25, further comprising electronically assigning the circuit protector to the circuit protection holder as the circuit protector is installed.

28. The method of claim 27, further comprising electronically comparing detected characteristics of the assigned circuit protector with detected characteristics of the circuit protector identification element to determine whether the circuit protector is proper or improper.

29. The method of claim 28, wherein the detected characteristics include one of a circuit protector type identifier, a circuit protector location identifier, and a circuit protector manufacturer identifier.

30. The method of claim 25, wherein electronically detecting comprises operating a radio frequency identification reader device to communicate with the circuit protection holder identification element and the circuit protector identification element.

31. The method of claim 25, further comprising:

electronically un-assigning the circuit protector from the circuit protection holder when the circuit protector is detected as being removed from the circuit protection holder;

electronically detecting at a third point in time a presence of another circuit protector identification element corresponding to another circuit protector; and

electronically re-assigning the another circuit protector to the circuit protection holder when the circuit protector holder identification element can no longer be detected.

32. The method of claim 25, further comprising electronically monitoring the circuit protector identification holder, and generating a notification when the circuit protector has operated to open a circuit path therethrough.

33. The method of claim 25, further comprising electronically verifying whether persons proximate the circuit protection holder possess appropriate personal protective equipment.

34. The method of claim 33, further comprising operating a lockout device in response to the electronic verification of personal protective equipment.

35. The method of claim 25, wherein the circuit protector holder is a fuse holder, and the circuit protector is a fuse.

36. An electronic circuit protector management system comprising:

means for connecting a circuit protector to an electrical system, the means for connecting provided with an identification element;

means for detecting the identification element; and

means for determining, based on communication with the means for detecting, whether a circuit protector is installed to the means for connecting.

37. The system of claim 36, further comprising means for identifying the installed circuit protector, allowing the means for determining to determine whether the installation of the circuit protector is proper.

38. The system of claim 36, wherein the means for connecting comprises a fuse holder.

39. A circuit protector management system comprising:

at least one circuit protection holder provided with a holder identification element;

a detector recognizing the holder identification element; and

a processor based device in communication with the detector, the processor based device configured to determine whether a circuit protect protector is installed in the at least one circuit protection holder.

40. The system of claim 39, wherein the circuit protection holder is a fuse holder and the circuit protector is a fuse.

41. A circuit protector management system comprising:

a plurality of circuit protection holders each provided with a respective holder identification element;

a detector recognizing the holder identification elements for each of the circuit protection holders; and

a processor based device in communication with the detector, the processor based device configured to determine whether circuit protectors are installed in each respective circuit protection holder.

42. The system of claim 41, wherein the processor based device is configured to individually identify each circuit protector installed in the circuit protector holders.

43. The system of claim 41, wherein the circuit protection holders are fuse holders and the circuit protectors are fuses.