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| Content Provider | IET Digital Library |
|---|---|
| Author | Dasara, Sujana Mishra, Vineet Prakash |
| Abstract | Leakage flux generated in the power transformers cause stray losses in metallic parts of the transformer. Stray losses largely affect the transformer hot spot which leads to thermal failure. It is necessary to mitigate the impact of leakage flux on metallic parts by employing magnetic shunts and eddy current shields. Preeminently clamping structures like flitch plate and end frames experience substantial losses, hence combinations of shielding can be used for better loss reduction. In this study, a case study is performed on a 315 MVA, 420/27 kV single-phase generator power transformer. This work is based on coupled three-dimensional (3D) finite-element analysis (FEA) of the transformer model. A new type of magnetic shunt is explored; also different design combinations of shielding are specified in this work for efficient mitigation of hot spots as well as tank walls. |
| Starting Page | 267 |
| Ending Page | 273 |
| Page Count | 7 |
| Volume Number | 2 |
| e-ISSN | 23977264 |
| Issue Number | Issue 4, Dec (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/hve/2/4 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/hve.2016.0090 |
| Journal | High Voltage |
| Publisher | The Institution of Engineering and Technology CEPRI |
| Publisher Date | 2017-07-05 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-No Derivs License (http://creativecommons.org/licenses/by-nd/3.0/) |
| Subject Keyword | 3D Finite-element Analysis Apparent Power 315 MVA Clamping Structures Coupled 3D FEA Coupled Three-dimensional Finite-element Analysis Eddy Current Shields Eddy Currents Electromagnetic Compatibility Electromagnetic Induction Finite Element Analysis Flitch Plate Impact Mitigation Interference Leakage Flux Magnetic Shielding Magnetic Shunts Metallic Parts Power Transformer Shielding Measures Single-phase Generator Power Transformer Stray Loss Mitigation Thermal Failure Transformer And Reactors Transformer Hot Spot Voltage 27 KV Voltage 450 KV |
| Content Type | Text |
| Resource Type | Article |
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