A Low-Power Setup Proposal for Power Transformer Loading Tests
A setup for testing transformers under load through low power converter is presented in this paper. This setup is used for testing power transformers as it allows to verify their performance under operating conditions regarding aspects such as heating, voltage regulation, and mounting robustness. Th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/12/21/4133 |
| _version_ | 1798006076775333888 |
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| author | Thiago Galvão Domingos Simonetti |
| author_facet | Thiago Galvão Domingos Simonetti |
| author_sort | Thiago Galvão |
| collection | DOAJ |
| description | A setup for testing transformers under load through low power converter is presented in this paper. This setup is used for testing power transformers as it allows to verify their performance under operating conditions regarding aspects such as heating, voltage regulation, and mounting robustness. The main goal of the study is centered on replacing a full power Back-to-Back converter (1 pu) by a fractional power one (less than 0.1 pu). The converter, a Voltage Source Inverter (VSI), is a series connected between two equally sized transformers and controls the current flowing in the system. Load profile configurations set according to power factor, current harmonics, or even power level can be imposed to evaluate the performance of the Transformer Under Test (TUT) and the entire system. Theoretical analysis, and simulation results employing Matlab/Simulink platform, considering a typical transformer of a 75 kVA power distribution grid with 13.8 kV/220 V voltage are presented to corroborate the proposal. The required VSI power achieved in the simulations is a fraction of the total power of transformer under test, and the grid power consumed is also of small order justified by losses. |
| first_indexed | 2024-04-11T12:50:18Z |
| format | Article |
| id | doaj.art-03e9e6b32a2d432fb2c58ab06adbac01 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T12:50:18Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-03e9e6b32a2d432fb2c58ab06adbac012022-12-22T04:23:14ZengMDPI AGEnergies1996-10732019-10-011221413310.3390/en12214133en12214133A Low-Power Setup Proposal for Power Transformer Loading TestsThiago Galvão0Domingos Simonetti1Department of Electrical Engineering, Federal University of Espírito Santo, Vitória ES 29075-910, BrazilDepartment of Electrical Engineering, Federal University of Espírito Santo, Vitória ES 29075-910, BrazilA setup for testing transformers under load through low power converter is presented in this paper. This setup is used for testing power transformers as it allows to verify their performance under operating conditions regarding aspects such as heating, voltage regulation, and mounting robustness. The main goal of the study is centered on replacing a full power Back-to-Back converter (1 pu) by a fractional power one (less than 0.1 pu). The converter, a Voltage Source Inverter (VSI), is a series connected between two equally sized transformers and controls the current flowing in the system. Load profile configurations set according to power factor, current harmonics, or even power level can be imposed to evaluate the performance of the Transformer Under Test (TUT) and the entire system. Theoretical analysis, and simulation results employing Matlab/Simulink platform, considering a typical transformer of a 75 kVA power distribution grid with 13.8 kV/220 V voltage are presented to corroborate the proposal. The required VSI power achieved in the simulations is a fraction of the total power of transformer under test, and the grid power consumed is also of small order justified by losses.https://www.mdpi.com/1996-1073/12/21/4133converterscurrentinverterspower conversion harmonicstransformers |
| spellingShingle | Thiago Galvão Domingos Simonetti A Low-Power Setup Proposal for Power Transformer Loading Tests Energies converters current inverters power conversion harmonics transformers |
| title | A Low-Power Setup Proposal for Power Transformer Loading Tests |
| title_full | A Low-Power Setup Proposal for Power Transformer Loading Tests |
| title_fullStr | A Low-Power Setup Proposal for Power Transformer Loading Tests |
| title_full_unstemmed | A Low-Power Setup Proposal for Power Transformer Loading Tests |
| title_short | A Low-Power Setup Proposal for Power Transformer Loading Tests |
| title_sort | low power setup proposal for power transformer loading tests |
| topic | converters current inverters power conversion harmonics transformers |
| url | https://www.mdpi.com/1996-1073/12/21/4133 |
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