# US 2010/0164473 A1 · Meter phase identification

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- Number: US 2010/0164473 A1
- Document ID: US20100164473A1
- Status: Published application
- Kind: A1
- Application number: 12/345,702
- Filed: 2008-12-30
- Published: 2010-07-01
- Earliest claimed: 2008-12-30
- Assignees: General Electric Company
- Inventors: Kenneth J. Caird
- Web page: https://patentgrep.com/patent/US20100164473A1

## CPC

- G01R 29/18: Indicating phase sequence; Indicating synchronism
- G01R 31/60: Identification of wires in a multicore cable
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

A multi-phase electrical power distribution network includes a substation; a signal generator for providing a different signal on each of a plurality of phases leaving the substation; and a signal discriminator for detecting each of the different signals at a consumer of the electrical power.

## Claims

### Claim 1

A multi-phase electrical power distribution network, comprising:
a substation;
a signal generator for providing a different signal on each of a plurality of phases leaving the substation; and
a signal discriminator for detecting each of the different signals at a consumer of the electrical power.

### Claim 2 (depends on 1)

The network recited in claim 1, further comprising a meter including the signal discriminator.

### Claim 3 (depends on 1)

The network recited in claim 1, wherein the signal comprises an alternating signal.

### Claim 4 (depends on 3)

The network recited in claim 3, wherein the alternating signal comprises a frequency less than about 60 Hz.

### Claim 5 (depends on 3)

The network recited in claim 3, wherein the alternating signal comprises a frequency less than about 50 Hz.

### Claim 6 (depends on 3)

The network recited in claim 3, wherein the alternating signal comprises a frequency less than about 25 Hz.

### Claim 7 (depends on 3)

The network recited in claim 3, wherein the alternating signal comprises a frequency less than about 10 Hz.

### Claim 8 (depends on 4)

The network recited in claim 4, wherein the signal discriminator comprises a digital filters.

### Claim 9 (depends on 8)

The network recited in claim 8, further comprising a meter including the signal discriminator.

### Claim 10

An electrical meter comprising a signal discriminator for receiving a signal from a substation and determining a phase to which the meter is connected.

### Claim 11 (depends on 10)

The electrical smart meter recited in claim 10, wherein the signal comprises an alternating signal.

### Claim 12 (depends on 11)

The electrical smart meter recited in claim 11, wherein the signal discriminator comprises aat least one filter.

### Claim 13 (depends on 12)

The network recited in claim 12, wherein the alternating signal comprises a frequency of less than 60 Hz.

### Claim 14

A method of meter phase identification, comprising:
generating a different signal on each of a plurality of phases from a substation;
receiving one of the different signals at a consumer meter; and
discriminating the received signal for determining to which of the plurality of phases the meter is connected.

### Claim 15 (depends on 14)

The method recited in claim 14, wherein the signal comprises and alternating signal.

### Claim 16 (depends on 15)

The method recited in claim 15, wherein the alternating signal comprises a frequency less than 60 Hz.

### Claim 17 (depends on 16)

The method recited in claim 16, wherein the discriminating step further comprises filtering the signal.