Power line sag monitoring device

Patent metadata

Field	Value
Publication number	US-11424609-B2
Application number	US-202117199508-A
Country	US
Kind code	B2
Filing date	Mar 12, 2021
Priority date	Jan 15, 2019
Publication date	Aug 23, 2022
Grant date	Aug 23, 2022

Abstract

The present disclosure relates to systems and methods of sag in a power line. In an embodiment, a monitoring device may include a distance sensor and an operating parameter sensor. A processor of the monitoring device may acquire, via the distance sensor, a first distance measurement. The processor may acquire, via the operating parameter sensor, a first operating parameter measurement. The processor may provide an output signal indicating that the power line is sagging when a combination of the first distance measurement and the first operating parameter measurement exceed a first combined distance-operating parameter threshold.

First claim

What is claimed is:

1. An electronic device configured to determine sag in a power line of a power delivery system, comprising:
sensor circuitry configured to be positioned between a first structure and a second structure of the power line to detect an operating parameter of the power line, wherein the sensor circuitry is configured to be positioned closer to the first structure than a midpoint between the first structure and the second structure to allow the electronic device to detect a discharge event on the power line;
a tilt angle sensor configured to detect a tilt angle of the electronic device
memory;
a processor operatively coupled to the memory, wherein the processor is configured to:
receive one or more operating parameter measurements from the sensor circuitry;
receive one or more tilt angle measurements from the tilt angle sensor;
provide a first output signal when the one or more tilt angle measurements indicate that the power line is sagging and provide a second output signal when the one or more operating parameter measurements indicate that the discharge event has occurred.

2. The electronic device of claim 1 , wherein the first output signal comprises an indication of an estimate of the sag at the midpoint.

3. The electronic device of claim 1 , wherein the sensor circuitry comprises a microphone, an antenna, a current sensor, or any combination thereof.

4. The electronic device of claim 1 , wherein the electronic device comprises a line-mounted, line-powered device.

5. The electronic device of claim 1 , wherein the processor is configured to send the first output signal to a central monitoring station to be displayed on a display at the central monitoring station.

6. The electronic device of claim 1 , wherein the processor is configured to provide the first output signal to an intelligent electronic device (IED) to cause the IED to open a circuit breaker to disconnect the power line from the power delivery system to prevent excess sag on the power delivery system.

Assignees

• Schweitzer Engineering Lab Inc

Inventors

• Manson Scott M
• Achanta Shankar V
• Zweigle Gregary C
• Edge Richard M

Classifications

• H02H1/0023 Primary

  sensing non electrical parameters, e.g. by optical, pneumatic, thermal or sonic sensors · CPC title

• G01R19/2513 Primary

  Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging · CPC title

• H02H1/0092

  concerning the data processing means, e.g. expert systems, neural networks · CPC title

• G01P15/18

  in two or more dimensions · CPC title

• H02H1/0007

  concerning the detecting means (in general G01R or other subclasses of G01; reed switches H01H71/2445) · CPC title