Leakage Inductances of Transformers at Arbitrarily Located Windings
The article presents the calculation of the leakage inductance in power transformers. As a rule, the leakage flux in the transformer window is represented by the short-circuit inductance, which affects the short-circuit voltage, and this is a very important factor for power transformers. This induct...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/23/6464 |
| _version_ | 1797545500563472384 |
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| author | Marcin Jaraczewski Tadeusz Sobczyk |
| author_facet | Marcin Jaraczewski Tadeusz Sobczyk |
| author_sort | Marcin Jaraczewski |
| collection | DOAJ |
| description | The article presents the calculation of the leakage inductance in power transformers. As a rule, the leakage flux in the transformer window is represented by the short-circuit inductance, which affects the short-circuit voltage, and this is a very important factor for power transformers. This inductance reflects the typical windings of power transformers well, but is insufficient for special transformers or in any case of the internal asymmetry of windings. This paper presents a methodology for calculations of the self- and mutual-leakage inductances for windings arbitrarily located in the air window. It is based on the 2D approach for analyzing the stray field in the air zone only, using discrete partial differential operators. That methodology is verified with the finite element method tested on real transformer data. |
| first_indexed | 2024-03-10T14:16:20Z |
| format | Article |
| id | doaj.art-3060704de1ea428183f90ae94a279ae4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T14:16:20Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3060704de1ea428183f90ae94a279ae42023-11-20T23:45:49ZengMDPI AGEnergies1996-10732020-12-011323646410.3390/en13236464Leakage Inductances of Transformers at Arbitrarily Located WindingsMarcin Jaraczewski0Tadeusz Sobczyk1Faculty of Electrical and Computer Engineering, Cracow University of Technology, 24 Warszawska Street, PL 31-155 Cracow, PolandFaculty of Electrical and Computer Engineering, Cracow University of Technology, 24 Warszawska Street, PL 31-155 Cracow, PolandThe article presents the calculation of the leakage inductance in power transformers. As a rule, the leakage flux in the transformer window is represented by the short-circuit inductance, which affects the short-circuit voltage, and this is a very important factor for power transformers. This inductance reflects the typical windings of power transformers well, but is insufficient for special transformers or in any case of the internal asymmetry of windings. This paper presents a methodology for calculations of the self- and mutual-leakage inductances for windings arbitrarily located in the air window. It is based on the 2D approach for analyzing the stray field in the air zone only, using discrete partial differential operators. That methodology is verified with the finite element method tested on real transformer data.https://www.mdpi.com/1996-1073/13/23/6464power transformerswinding asymmetry2D stray field analysis2D discrete partial differential operatorsenergy-based approachleakage inductances |
| spellingShingle | Marcin Jaraczewski Tadeusz Sobczyk Leakage Inductances of Transformers at Arbitrarily Located Windings Energies power transformers winding asymmetry 2D stray field analysis 2D discrete partial differential operators energy-based approach leakage inductances |
| title | Leakage Inductances of Transformers at Arbitrarily Located Windings |
| title_full | Leakage Inductances of Transformers at Arbitrarily Located Windings |
| title_fullStr | Leakage Inductances of Transformers at Arbitrarily Located Windings |
| title_full_unstemmed | Leakage Inductances of Transformers at Arbitrarily Located Windings |
| title_short | Leakage Inductances of Transformers at Arbitrarily Located Windings |
| title_sort | leakage inductances of transformers at arbitrarily located windings |
| topic | power transformers winding asymmetry 2D stray field analysis 2D discrete partial differential operators energy-based approach leakage inductances |
| url | https://www.mdpi.com/1996-1073/13/23/6464 |
| work_keys_str_mv | AT marcinjaraczewski leakageinductancesoftransformersatarbitrarilylocatedwindings AT tadeuszsobczyk leakageinductancesoftransformersatarbitrarilylocatedwindings |