Nov 09, 2025
Abstract: Accurate and robust defect diagnosis methods of relay protection systems could enhance power systems safety and prevent casualties.
May 12, 2026
The team also analyzed the protective failure data for patterns related to relay series, because protective relays had not been analyzed previously . As anticipated, relay series identified in the OE reports
May 02, 2026
Considering the state assessment of relay protection device gray and fuzzy, an analytical method based on the combination of grey correlation analysis and apriori correlation analysis is
Dec 26, 2025
The safety of the power grid is threatened by incorrect action (IA) of relay protection system (RPS) resulting from defects, and even worsen a blackout. Currently, a large amount of data about IAs and
Aug 04, 2025
The experimental results show that this method can effectively analyze the operation characteristics of power system relay protection, and can accurately check whether the relay
Jul 14, 2026
The original record data for the defect of the relay protection devices (RPDs) collected on site is and may contain problems influencing the data mining, and it is lack of quantitative evaluation.
Dec 15, 2025
This work is supported by the project of “Analysis and Application of Relay Protection Devices Heterogeneous Defect Data in North China Electric Power Grid Based on Knowledge
Sep 20, 2025
The invention relates to a method and a system for analyzing relevance of defect data of a relay protection device based on Apriori algorithm, wherein the method comprises the following steps: s10:
Nov 30, 2025
An improper functioning of systems related to stability of power systems and protective relays through circuit breakers remains a factor that jeopardizes the stability as well as the safety of power systems.
Oct 15, 2025
Based on the SCD file analysis results of the substation relay protection secondary circuit, the improved D-S evidence theory is selected to carry out the fault diagnosis of the substation relay
May 21, 2026
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Nov 27, 2025
This study suggests a method for diagnosing defects and evaluating the relay protection system in light of the aforementioned concerns. The method
Aug 04, 2025
The development of these technologies provides powerful tools for building fault diagnosis models for intelligent substation relay protection systems. However, the particularity of fault
Nov 09, 2025
In this process, a large amount of defect processing data has been accumulated, including much unstructured textual data, and the purpose of this paper is to evaluate the quality of these
Mar 31, 2026
The main research content of this paper focuses on the reliability analysis and promotion strategy of microcomputer relay protection device. Firstly, by analyzing the fault history and operation
Mar 16, 2026
Fault Prediction Analytics for Relay Protection: Transforming Electric Power Transmission In today''s fast-evolving electric power transmission, control, and distribution landscape, Relay Protection
Apr 23, 2026
Abstract The action characteristics of power system relay protection devices can well analyze whether the relevant actions are correct. An analysis method of relay protection action
Nov 18, 2025
Relay Technician''s Root Cause Analysis Guide Relay Technician''s Root Cause Analysis Guide for Electric Power Systems In the evolving landscape of business intelligence and data analytics, the
May 11, 2026
We have developed the Reliability Analysis System for Protective Relays (RASPR), which is composed of a database for protective relay
Mar 31, 2026
The analysis results show that the Apriori method can effectively reveal the hidden information in the defect data, such as the ARs between the vulnerable parts of RPDs, defect causes and other factors.
Apr 14, 2026
Abstract The original unstructured record data for the defect of the relay protection devices (RPDs) may contain problems influencing the data mining, and it is lack of quantitative evaluation.
Mar 02, 2026
A wide range of operational data for relay protection systems, including different operating states and performance levels, may be collected by gathering data from the output network
Nov 13, 2025
Apply knowledge mapping technology and information extraction methods to build a knowledge map of relay protection device faults, and
Jan 19, 2026
The healthy and reliable operation of relay protection devices is of great significance for improving the safe and stable operation of the power grid. Defect analysis of relay protection devices relies on
Oct 28, 2025
At present, the diagnosis of relay protection faults still relies on personnel on-site inspection, and the application of online monitoring information and alarm information of relay
Apr 11, 2026
Currently, a large amount of defect data in relay protection devices (RPDs) is accumulated in operation. However, the defect data dependence analysis is absence and thus it could not meet the demand for
Dec 03, 2025
Protective relays are critical in power systems because they serve as decision-making devices that ensure the safe operation of power grid. They play a key role in power system protection.
Dec 19, 2025
Abstract To address the high complexity and diversity of faults in relay protection devices, as well as the challenges in fault feature extraction that affect fault identification accuracy, an
Dec 19, 2025
Based on 7-years defect data of RPDs in SGCC, this paper discovers the association rules (ARs) of defect data based on the Apriori algorithm. In detail, the ARs among different categories of
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