# US 11,592,486 B2 · Electromechanical relay tester

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- Number: US 11,592,486 B2
- Document ID: US11592486B2
- Status: Granted
- Kind: B2
- Application number: 16/894,175
- Filed: 2020-06-05
- Published: 2021-12-09
- Granted: 2023-02-28
- Earliest claimed: 2020-06-05
- Assignees: Saudi Arabian Oil Company
- Applicants: Saudi Arabian Oil Company
- Inventors: Meshari Sulaiman Alnafi
- Web page: https://patentgrep.com/patent/US11592486B2

## CPC

- G01R 31/3278: {of relays, solenoids or reed switches (measuring contact resistance G01R27/205; high voltage magnetic switches G01R31/3271, G01R31/333; testing electric windings G01R31/72; monitoring of fail safe circuits H01H47/002)}
- G01R 31/3274: {Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance (measuring contact resistance G01R27/205)}
- G05B 19/0428: {Safety, monitoring (G05B19/0423 takes precedence)}
- H03K 17/18: Modifications for indicating state of switch
- G05B 2219/23278: Program by data flow
- G05B 2219/2609: Process control
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)

## Abstract

A method for automatically testing a relay is provided. The method includes applying power to a testing device for automatically testing the relay, determining a position of a selector switch based on a user selection for testing, selectively energizing the relay based on the position of the selector switch, detecting, by a hardware processor, an energize status signal from the selector switch, testing, by the hardware processor and based at least on the energize status signal, a control coil or a contact of the relay to generate a test result, and displaying, using display, the energize status signal and the test result.

## Claims

### Claim 1

A method for automatically testing a relay, the method comprising:
applying power to a testing device for automatically testing the relay;
determining a position of a selector switch based on a user selection for testing;
selectively energizing the relay based on the position of the selector switch, comprising:
determining a position of an AC/DC switch based on a further user selection for energizing the relay, and
applying a control voltage to the relay based on the position of the AC/DC switch;
detecting, by a hardware processor, an energize status signal from the selector switch;
testing, by the hardware processor and based at least on the energize status signal, a control coil or a contact of the relay to generate a test result; and
displaying, using display, the energize status signal and the test result.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
identifying an additional coil or an additional contact of the relay for testing; testing, in response to said identifying, the additional coil or the additional contact to generate an additional test result; and
further displaying, contemporaneously with displaying the energize status signal and the test result, the additional test result.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the relay comprises 11 pins.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the position of the selector switch comprises an energized test position and a de-energized test position.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the position of the AC/DC switch comprises an AC control voltage position and a DC control voltage position.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the control voltage comprises a 120 VAC voltage based on the AC control voltage position and a 120 VDC voltage based on the DC control voltage position.

### Claim 7

A testing device for testing a relay, comprising:
an ON/OFF switch for applying power to the testing device for automatically testing the relay;
an energize test selector switch for selectively energizing the relay based on a position of the energize test selector switch, wherein the position of the energize test selector switch is determined based on a user selection for testing;
an AC/DC switch for selectively applying a control voltage to the relay based on a position of the AC/DC switch, wherein the position of the AC/DC switch is determined based on a further user selection for energizing the relay;
a processor and a memory coupled to the processor, the memory storing instructions, when executed by the processor, comprising functionality for:
detecting an energize status signal from the energize test selector switch; and
testing, based at least on the energize status signal, a control coil or a contact of the relay to generate a test result; and
a display for displaying the energize status signal and the test result.

### Claim 8 (depends on 7)

The testing device according to claim 7, further comprising:
identifying an additional coil or an additional contact of the relay for testing;
testing, in response to said identifying, the additional coil or the additional contact to generate an additional test result; and
further displaying, contemporaneously with displaying the energize status signal and the test result, the additional test result.

### Claim 9 (depends on 7)

The testing device according to claim 7, wherein the relay comprises 11 pins.

### Claim 10 (depends on 7)

The testing device according to claim 7, wherein the position of the selector switch comprises an energized test position and a de-energized test position.

### Claim 11 (depends on 7)

The testing device according to claim 7, wherein the position of the AC/DC switch comprises an AC control voltage position and a DC control voltage position.

### Claim 12 (depends on 11)

The testing device according to claim 11, wherein the control voltage comprises a 120 VAC voltage based on the AC control voltage position and a 120 VDC voltage based on the DC control voltage position.

### Claim 13

A non-transitory computer readable medium (CRM) storing instructions executable by a computer processor for testing a relay, the instructions, when executed by the computer processor, comprising functionality for:
applying power to a testing device for automatically testing the relay;
determining a position of a selector switch based on a user selection for testing;
selectively energizing the relay based on the position of the selector switch, comprising:
determining a position of an AC/DC switch based on a further user selection for energizing the relay; and
applying a control voltage to the relay based on the position of the AC/DC switch;
detecting an energize status signal from the selector switch;
testing, based at least on the energize status signal, a control coil or a contact of the relay to generate a test result; and
displaying, using a display, the energize status signal and the test result.

### Claim 14 (depends on 13)

The non-transitory CRM according to claim 13, the instructions, when executed by the computer processor, further comprising functionality for:
identifying an additional coil or an additional contact of the relay for testing;
testing, in response to said identifying, the additional coil or the additional contact to generate an additional test result; and
further displaying, contemporaneously with displaying the energize status signal and the test result, the additional test result.

### Claim 15 (depends on 13)

The non-transitory CRM according to claim 13, wherein the relay comprises 11 pins.

### Claim 16 (depends on 13)

The non-transitory CRM according to claim 13, wherein the position of the selector switch comprises an energized test position and a de-energized test position.

### Claim 17 (depends on 13)

The non-transitory CRM according to claim 13,
wherein the position of the AC/DC switch comprises an AC control voltage position and a DC control voltage position, and
wherein the control voltage comprises a 120 VAC voltage based on the AC control voltage position and a 120 VDC voltage based on the DC control voltage position.

### Claim 18

A method for automatically testing a relay, the method comprising:
applying power to a testing device for automatically testing the relay, wherein the relay comprises 11 pins;
determining a position of a selector switch based on a user selection for testing;
selectively energizing the relay based on the position of the selector switch;
detecting, by a hardware processor, an energize status signal from the selector switch;
testing, by the hardware processor and based at least on the energize status signal, a control coil or a contact of the relay to generate a test result; and
displaying, using display, the energize status signal and the test result.
