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US 12,633,479 B2Granted
Enhanced switchgear monitoring and diagnostics in a protection relay
AssigneeGE Vernova Infrastructure Technology LLC
InventorsBalakrishna Pamulaparthy, Palak Praduman Parikh, Michael Pilon
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Abstract
A power system asset may include an individual circuit breaker, a switchgear that may include multiple circuit breakers, or any other asset that may be included in a power system. The system for monitoring and diagnosing these power system assets may include one or more intelligent protection relay and switchgear monitor device(s) that may be communicatively coupled in a master-slave or peer-peer configuration in a time-synchronized manner of operation.
Claims20
A system, comprising:
- a monitor device in communication with a switchgear;
- and
- a protection relay in communication with the monitor device and configured to, using a processor:
- capture, during a baseline mode, a first set of data associated with the protection relay during a switchgear fault event, wherein the first set of data comprises at least two of protection function data, peak fault current, peak voltage, duration of fault, arcing current or energy within the protection relay, partial discharge (PD) level, temperature, humidity, operating time of the protection relay, and an age of the protection relay;
- detect, during the baseline mode and based on the first set of data, that a switchgear failure event has not yet occurred;
- capture, based on the detection of the switchgear fault event, a second set of data indicative of a type of protection that triggered the switchgear fault event and characteristics of the protection trip event, and a third set of data indicative of operating conditions of the protection relay during the switchgear fault event;
- generate a data correlation model using the second set of data and the third set of data, the data correlation model associated with predicting a future switchgear failure event that has not yet occurred;
- determine an operational baseline for the switchgear based on the data correlation model using an analysis of the switchgear fault event based on the second set of data and the third set of data, the operational baseline associated with predicting the future switchgear failure event;
- switch to a monitoring mode after a threshold number of data samples have been captured;
- predict, using the monitoring mode and the data correlation model, that the future switchgear failure event will occur;
- and
- generate a warning that the switchgear failure event is predicted to occur, wherein the warning causes a control action by the protection relay after a configured or estimated time duration.
9 more elements
A method, comprising:
- capturing, using at least one processor, during a baseline mode, a first set of data associated with a protection relay prior to any switchgear fault event, wherein the first set of data comprises at least two of protection function data, peak fault current, peak voltage, duration of fault, arcing current or energy within the protection relay, partial discharge (PD) level, temperature, humidity, operating time of the protection relay, and an age of the protection relay;
- detecting, using the at least one processor, during the baseline mode and based on the first set of data, that a switchgear fault event has not yet occurred;
- capturing, using the at least one processor, based on the detection of the switchgear fault event, a second set of data indicative of a type of protection that triggered the switchgear fault event and characteristics of the switchgear fault event, and a third set of data indicative of operating conditions of the protection relay during the switchgear fault event;
- generating, using the at least one processor, a data correlation model using the second set of data and the third set of data, the data correlation model associated with predicting a future switchgear failure event that has not yet occurred;
- determining, using the at least one processor, an operational baseline for the switchgear based on the data correlation model using an analysis of the switchgear fault event based on the second set of data and the third set of data, the operational baseline associated with predicting the future switchgear failure event;
- transitioning, using the at least one processor, after a threshold number of data samples have been captured, to a monitoring mode;
- predicting, using the at least one processor, during the monitoring mode and using the data correlation model, that the future switchgear failure event will occur;
- and
- generating, using the at least one processor, a warning that the switchgear failure event is predicted to occur, wherein the warning causes a control action by the protection relay after a configured or estimated time duration.
6 more elements
Dependencies are inferred from the claim text.