IP Library Granted Patent US 11,550,000
Granted Patent B2
US 11,550,000 · App. 16/492,542 · Granted Jan 10, 2023

Smart grid distribution transformer

Inventors: Deia Bayoumi (Cary, NC); Muge Ozerten (Raleigh, NC); Alberto Prieto (Cary, NC); Abdelghafour Bouaicha (Cary, NC); Carlo Cereda (Caravaggio, IT); Claire Pitois (Sundyberg, SE)
Assignee: HITACHI ENERGY SWITZERLAND AG
G01R31/62G01D21/02G01R15/181H01F27/402H01F41/00H01F27/12H01F2027/406
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Quick Facts
Patent No.
US 11,550,000
App. No.
16/492,542
Granted
Jan 10, 2023
Kind
B2
Abstract

A system for distribution transformer monitoring may comprise a distribution transformer that includes a transformer fluid tank, a monitoring unit that includes a plurality of sensors, wherein the monitoring unit is coupled to the distribution transformer, and wherein the plurality of sensors comprises a fluid sensor that includes a sensor probe that extends out of the monitoring unit into the transformer fluid tank of the distribution transformer, and a communication unit coupled to the distribution transformer and communicatively coupled to the monitoring unit. The monitoring unit may further comprises a sensor module to receive sensor data from the plurality of sensors, a storage module to store the sensor data in an internal data storage device of the monitoring unit, an analysis module to analyze the sensor data to determine generated data, and a communication module to communicate the sensor data or the generated data to a remote computing device.

Claims (38)

1. A distribution transformer monitoring system, the distribution transformer monitoring system comprising:

a distribution transformer that includes a transformer fluid tank;

wherein the distribution transformer is communicatively coupled to a monitoring unit that comprises a plurality of sensors, a sensor module, a storage module, and an analysis module,

wherein the plurality of sensors comprises a voltage/current sensor, a fluid sensor coupled to a sensor probe, wherein the sensor probe extends into the transformer fluid tank;

wherein the sensor module is configured to receive sensor data from the plurality of sensors, wherein the sensor data comprises voltage/current data and fluid tank data;

wherein the voltage/current data is received from the voltage/current sensor and is indicative of voltage/current data output by the distribution transformer,

wherein fluid tank data is received from the sensor probe data via the fluid sensor,

wherein the fluid tank data is indicative of a characteristic within the transformer fluid tank;

the storage module to store the sensor data in an internal data storage device;

wherein the analysis module is configured to analyze the sensor data to determine generated data comprising at least diagnostics data; and

wherein the distribution transformer monitoring system is configured to communicate at least one of the sensor data the generated data to a remote computing device.

2. The system of claim 1 , further comprising:

a communication unit comprising an enclosure separate from the monitoring unit; and

a communication module configured to communicate with the remote computing device.

3. The system of claim 1 , further comprising:

a communication unit comprising an identification module to transmit identification data indicative of the distribution transformer to the remote computing device.

4. The system of claim 3 , wherein to transmit the identification data indicative of the distribution transformer comprises to transmit the identification data with a radio frequency identifier (RFID) system of the communication unit.

5. The system of claim 1 , wherein the fluid sensor comprises a fluid temperature sensor, an insulating fluid level sensor, a pressure sensor, a water content sensor, or a dissolved gas sensor.

6. The system of claim 1 , wherein the generated data comprises estimated lifetime consumption data.

7. The system of claim 1 , wherein a communication module is configured to communicate an alert to the remote computing device based on the sensor data or the generated data.

8. The system of claim 1 , wherein:

the distribution transformer comprises a transformer terminal; and

the voltage/current sensor is coupled to the transformer terminal to measure a voltage/current output by the distribution transformer.

9. The system of claim 8 , wherein the monitoring unit is powered by the transformer terminal.

10. A method for distribution transformer monitoring, the method comprising:

coupling a monitoring unit with a distribution transformer, wherein the distribution transformer comprises a transformer fluid tank, wherein the monitoring unit comprises a plurality of sensors, a sensor module, a storage module, an analysis module, a communication module and an internal data storage device, wherein the plurality of sensors comprises a voltage/current sensor, a fluid sensor and a sensor probe, wherein the fluid sensor is coupled with the sensor probe, wherein the sensor probe extends into the transformer fluid tank;

coupling a communication unit with the distribution transformer;

communicatively coupling the communication unit with the monitoring unit;

receiving, by the sensor module, sensor data from the plurality of sensors wherein the sensor data comprises voltage/current data and fluid tank data, wherein the voltage/current data is from the voltage/current sensor, wherein the voltage/current data is indicative of a voltage/current output by the distribution transformer, wherein the fluid tank data is from the fluid sensor via the sensor probe, wherein the fluid tank data is indicative of a characteristic within the transformer fluid tank;

storing, by the storage module, the sensor data in the internal data storage device;

analyzing, by analysis module, the sensor data to determine generated data, wherein the generated data comprises at least diagnostics data; and

communicating, by the communication module, the sensor data or the generated data to a remote computing device via the communication unit.

11. The method of claim 10 , wherein the communication unit comprises an enclosure separate from the monitoring unit.

12. The method of claim 10 , further comprising transmitting, by an identification module of the communication unit, identification data indicative of the distribution transformer to the remote computing device.

13. The method of claim 12 , wherein transmitting the identification data indicative of the distribution transformer comprises transmitting the identification data with a radio frequency identifier (RFID) system of the communication unit.

14. The method of claim 10 , wherein the fluid sensor comprises a fluid temperature sensor, an insulating fluid level sensor, a pressure sensor, a water content sensor, or a dissolved gas sensor.

15. The method of claim 10 , wherein the generated data comprises estimated lifetime consumption data.

16. The method of claim 10 , wherein the distribution transformer comprises a transformer terminal, wherein the monitoring unit is powered by the transformer terminal.

Assignments (4)
MERGER Recorded Nov 13, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065549/0576 →
CHANGE OF NAME Recorded Dec 31, 2021
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 058601/0692 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2020
From: BAYOUMI, DEIA; OZERTEN, MUGE; PRIETO, ALBERTO; BOUAICHA, ABDELGHAFOUR; CEREDA, CARLO; PITOIS, CLAIRE
To: ABB SCHWEIZ AG
Reel/Frame 053406/0147 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2020
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 053406/0186 →
Continuity (2)
Provisional Application 62470147 · Mar 10, 2017
Related Publication 20200393521A1 · Dec 17, 2020
Cited By (1)
US 12,553,878