Power line surge arrestor monitoring system

• US 20080068027A1
• Filed: 09/20/2006
• Published: 03/20/2008
• Est. Priority Date: 09/20/2006
• Status: Abandoned Application

• Current Assignee: L-3 Communications Corporation (L3Harris Technologies, Inc.)
• Original Assignee: L-3 Communications Corporation (L3Harris Technologies, Inc.)
• Inventors: Rice, Kelly, Lane, Philip, Crain, Charles, Youngman, James
• Application Number:
  US11/523,939
• Publication Number:
  US 20080068027A1
• Time in Patent Office: Days
• US Class Current: 324/522
• CPC Class Codes: G01R 31/1236 of surge arresters monitoring overvoltage diverters or arresters H02H3/048
• CPC Class Codes: H02H 9/042 comprising means to limit the absorbed power or indicate damaged over-voltage protection device

Abstract

A monitoring system in accordance with one embodiment comprising a plurality of surge arrestors; a plurality of probes coupled, each one of the plurality of probes coupled to one of the plurality of surge arrestors; the plurality of probes comprising at least one current probe and at least one voltage probe; a switching matrix coupled to the plurality of probes; and an electronic measuring device coupled to the switch, the electronic measuring device for measuring signals from the plurality of probes, the signals corresponding to a status of each of the plurality the surge arrestors.

Claims

1. A system for monitoring a surge arrestor comprising:

a current probe for measuring a total current of the surge arrestor;

an electronic measuring device coupled to the current probe, the electronic measuring device for measuring a signal from the current probe, the signal corresponding to the total current of the surge arrestor;

a fuse coupled to the surge arrestor; and

a voltage probe coupled between the fuse and the surge arrestor.

2. The system of claim 1 further comprising a first computer coupled to the electronic measuring device, the first computer for receiving data corresponding to the signal measured by the electronic monitoring device.

3. The system of claim 2 further comprising a second computer coupled to the first computer over a network.

4. The system of claim 2 wherein the first computer is coupled to the electronic measuring device over a network.

5. The system of claim 2 wherein the computer determines a status of the surge arrestor based upon the data received from the electronic measuring device.

6. The system of claim 1 wherein the electronic measuring device is a spectrum analyzer, an oscilloscope, a stand-alone instrument, or integrated into a computer.

7. The system of claim 1 further comprising a switch coupled to the voltage probe and the current probe.

8. The system of claim 7 wherein an output from the switch is coupled to the electronic measuring device.

9. A method for monitoring a surge arrestor comprising:

coupling a first current probe to a first surge arrestor;

coupling a voltage probe to the first surge arrestor;

measuring an output of the first current probe and the voltage probe at an electronic measuring device; and

determining a status of the first surge arrestor based upon the measured output of the current probe and the voltage probe.

10. The method of claim 9 further comprising sending data corresponding to the measured output of the first current probe to a computer;

wherein the step of determining a status of the first surge arrestor is performed by the computer.

11. The method of claim 9 further comprising:

coupling a second current probe to a second surge arrestor;

measuring an output of the second current probe at the electronic measuring device; and

determining a status of the second surge arrestor based upon the measured output of the current probe.

12. The method of claim 11 further comprising:

sending data corresponding to the measured output of the first current probe to a computer, wherein the step of determining a status of the first surge arrestor is performed by the computer; and

sending data corresponding to the measured output of the second current probe to the computer, wherein the step of determining a status of the second surge arrestor is performed by the computer.

13. A monitoring system comprising:

a surge arrestor;

a fuse coupled to the surge arrestor;

a probe coupled between the fuse and the surge arrestor; and

an electronic measuring device coupled to the probe, the electronic measuring device for measuring a signal from the probe, the signal corresponding to a status of the surge arrestor.

14. The system of claim 13 further comprising a first computer coupled to the electronic measuring device, the first computer for receiving data corresponding to the signal measured by the electronic monitoring device.

15. The system of claim 14 further comprising a second computer coupled to the first computer over a network.

16. The system of claim 14 wherein the first computer is coupled to the electronic measuring device over a network.

17. The system of claim 13 wherein the computer determines a status of the surge arrestor based upon the data received from the electronic measuring device.

18. The system of claim 13 wherein the electronic measuring device is a spectrum analyzer, an oscilloscope, a stand-alone instrument, or integrated into a computer.

19. A monitoring system comprising:

a plurality of surge arrestors;

a plurality of fuses coupled to the surge arrestors;

a plurality of probes coupled, each one of the plurality of probes coupled to one of the plurality of surge arrestors, the plurality of probes comprising at least one current probe and one voltage probe;

a switching matrix coupled to the plurality of probes; and

an electronic measuring device coupled to the switch, the electronic measuring device for measuring signals from the first plurality of probes, the signals corresponding to a status of each of the plurality the surge arrestors.

20. The monitoring system of claim 19 further comprising a first computer coupled to the electronic measuring device, the first computer for receiving data corresponding to signals measured by the electronic monitoring device.

21. The monitoring system of claim 20 further comprising a second computer coupled to the first computer over a network.