Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy
Transformer operations are susceptible to both internal and external faults. This study primarily employed software to construct a power system simulation model featuring a step-down transformer. The simulation model comprised three single-phase transformers with ten tap positions at the secondary c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/27/4/444 |
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| author | Chia-Wei Huang Chih-Chiang Fang Wei-Tai Hsu Chih-Chung Yang Li-Ting Zhou |
| author_facet | Chia-Wei Huang Chih-Chiang Fang Wei-Tai Hsu Chih-Chung Yang Li-Ting Zhou |
| author_sort | Chia-Wei Huang |
| collection | DOAJ |
| description | Transformer operations are susceptible to both internal and external faults. This study primarily employed software to construct a power system simulation model featuring a step-down transformer. The simulation model comprised three single-phase transformers with ten tap positions at the secondary coil to analyze internal faults. Additionally, ten fault positions between the power transformer and the load were considered for external fault analysis. The protection scheme incorporated percentage differential protection for both the power transformer and the transmission line, aiming to explore fault characteristics. To mitigate the protection device’s sensitivity issues, the scale-dependent intrinsic entropy method was utilized as a decision support system to minimize power system protection misoperations. The results indicated the effectiveness and practicality of the auxiliary method through comprehensive failure analysis. |
| format | Article |
| id | doaj-art-99bc1a8f5021482c8cb0ade8d746804c |
| institution | OA Journals |
| issn | 1099-4300 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj-art-99bc1a8f5021482c8cb0ade8d746804c2025-08-20T02:17:20ZengMDPI AGEntropy1099-43002025-04-0127444410.3390/e27040444Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic EntropyChia-Wei Huang0Chih-Chiang Fang1Wei-Tai Hsu2Chih-Chung Yang3Li-Ting Zhou4Department of Electrical Engineering, Zhaoqing University, Zhaoqing 526061, ChinaSchool of Computer Science and Software, Zhaoqing University, Zhaoqing 526061, ChinaDepartment of Electrical Engineering, Zhaoqing University, Zhaoqing 526061, ChinaDepartment of Electrical Engineering, Zhaoqing University, Zhaoqing 526061, ChinaDepartment of Electrical Engineering, Zhaoqing University, Zhaoqing 526061, ChinaTransformer operations are susceptible to both internal and external faults. This study primarily employed software to construct a power system simulation model featuring a step-down transformer. The simulation model comprised three single-phase transformers with ten tap positions at the secondary coil to analyze internal faults. Additionally, ten fault positions between the power transformer and the load were considered for external fault analysis. The protection scheme incorporated percentage differential protection for both the power transformer and the transmission line, aiming to explore fault characteristics. To mitigate the protection device’s sensitivity issues, the scale-dependent intrinsic entropy method was utilized as a decision support system to minimize power system protection misoperations. The results indicated the effectiveness and practicality of the auxiliary method through comprehensive failure analysis.https://www.mdpi.com/1099-4300/27/4/444percentage differential protectionfault diagnosispower transformercomplexity |
| spellingShingle | Chia-Wei Huang Chih-Chiang Fang Wei-Tai Hsu Chih-Chung Yang Li-Ting Zhou Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy Entropy percentage differential protection fault diagnosis power transformer complexity |
| title | Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy |
| title_full | Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy |
| title_fullStr | Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy |
| title_full_unstemmed | Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy |
| title_short | Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy |
| title_sort | improving the protection of step down transformers by utilizing percentage differential protection and scale dependent intrinsic entropy |
| topic | percentage differential protection fault diagnosis power transformer complexity |
| url | https://www.mdpi.com/1099-4300/27/4/444 |
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