# US 2014/0207399 A1 · System and Method for Monitoring a Power Line

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- Number: US 2014/0207399 A1
- Document ID: US20140207399A1
- Status: Published application
- Kind: A1
- Application number: 13/748,602
- Filed: 2013-01-24
- Published: 2014-07-24
- Earliest claimed: 2013-01-24
- Assignees: Cleaveland/Price Inc.
- Inventors: Hershel Roberson
- Web page: https://patentgrep.com/patent/US20140207399A1

## CPC

- G01R 15/18: using inductive devices, e.g. transformers
- G01R 15/04: Voltage dividers
- G01R 1/06777: {High voltage probes}
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

A system and method for monitoring power lines is disclosed herein. Specifically, the system for monitoring power lines can comprise a sensory assembly connected to each phase of a power line. The sensory assembly can comprise a sensory transceiver that broadcasts a signal comprising a digital representation of a voltage wave and a current wave on a single phase of a power line. The system can also comprise a common assembly comprising a common transceiver receiving the signal from the sensory transceiver. Furthermore, the system can comprise a microprocessor, which analyzes the signal and a precision timing device that directs the common transceiver to send signals, which synchronize the sensory assembly readings on a phase of a power line, back to the sensory assembly.

## Claims

### Claim 1

A power line monitoring system comprising
a sensory assembly, said sensory assembly connected to each phase of a power line, said sensory assembly comprising
a sensory transceiver that broadcasts a signal, said signal comprising a digital representation of a voltage wave and a current wave on a single phase of a power line, and
a common assembly comprising
a common transceiver, said common transceiver receiving said signal, and
a microprocessor, said microprocessor analyzing said signal, and
a precision timing device, said precision timing device directing said common transceiver to send signals to said sensory assembly, said signals synchronizing sensory assembly readings on a phase of a power line.

### Claim 2 (depends on 1)

The system of claim 1, wherein said sensory assembly comprises
a voltage sensor connected to at least one power line;
a current sensor connected to at least one power lines; and
one or more analog to digital converters connected to said voltage sensor and current sensor.

### Claim 3 (depends on 1)

The system of claim 1, wherein said sensory assembly comprises a monitoring sensor, said monitoring sensor physically attaching to a power line by clamp.

### Claim 4 (depends on 3)

The system of claim 3, wherein multiple sensory assemblies attach to each conductor of a three phase power line.

### Claim 5 (depends on 3)

The system of claim 3, wherein said sensory assembly samples voltage and current at a rate of at least 16 samples per power line cycle.

### Claim 6 (depends on 5)

The system of claim 5, wherein multiple sensory assemblies sample voltage and current simultaneously in the same phase in response to a transceiver signal from said common assembly.

### Claim 7 (depends on 1)

The system of claim 1, wherein sensory assembly comprises a frequency hopping spread spectrum radio for communications between said sensory assembly and said common assembly.

### Claim 8 (depends on 1)

The system of claim 1, wherein said common assembly comprises a digital signal processing algorithm scaled to fit a digital format compatible with said common transceiver and sensory transceiver.

### Claim 9 (depends on 1)

The system of claim 1, wherein common assembly comprises a network interface, said network interface linking wave form data transferred from common assembly to a long-range communications device and centralized host system computer.

### Claim 10 (depends on 1)

The system of claim 1, wherein said common assembly operates a motor operated switch, switching power through the power line conductors, or switching power to a capacitor bank used for power factor control of the power line.

### Claim 11

A method for monitoring a power line comprising
attaching a sensory assembly to each phase of a power line;
broadcasting a signal, said signal comprising a digital representation of a voltage wave and a current wave on a single phase of a power line, from a sensory transceiver of said sensory assembly to a common transceiver on a common assembly;
analyzing said signal by a microprocessor on said common assembly;
synchronizing said sensory assembly readings on a phase of a power line by directing a precision timing device on said sensory assembly;
monitoring said voltage and current levels synchronized in the same phase on power lines by the sensory assembly and common assembly; and
calculating said voltage and current levels synchronized in the same phase on power lines by said sensory assembly and said common assembly.

### Claim 12 (depends on 11)

The method of claim 11, wherein said sensory assembly comprises
a voltage sensor and a current sensor, each connected to at least one of said power lines, and
one or more analog to digital converters connected to said voltage sensor and said current sensor.

### Claim 13 (depends on 11)

The method of claim 11, wherein said sensory assembly comprises a monitoring sensor, said monitoring sensor physically attaches to a power line by clamp.

### Claim 14 (depends on 13)

The method of claim 13, wherein multiple sensory assemblies attach to each conductor of a three phase power line.

### Claim 15 (depends on 13)

The method of claim 13, wherein said sensory assembly samples voltage and current at a rate of at least 16 samples per power line cycle.

### Claim 16 (depends on 13)

The method of claim 13, wherein multiple sensory assemblies sample voltage and current simultaneously in the same phase in response to a transceiver signal from said common assembly.

### Claim 17 (depends on 13)

The method of claim 13, wherein sensory assembly comprises a frequency hopping spread spectrum radio for communications between said sensory assembly and said common assembly.

### Claim 18 (depends on 11)

The method of claim 11, wherein said common assembly comprises a digital signal processing algorithm scaled to fit a digital format compatible with said common transceiver and said sensory transceiver.

### Claim 19 (depends on 11)

The method of claim 11, wherein said common assembly comprises a network interface, said network interface linking wave form data transferred from common assembly to a long-range communications device and centralized host system computer.
