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A virtual laboratory for an enhanced and safe understanding of the electric transformers operation

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A virtual laboratory for an enhanced and safe understanding of the electric transformers operation

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dc.contributor.author Bonet-Jara, Jorge es_ES
dc.contributor.author Pons Llinares, Joan es_ES
dc.contributor.author Bernal-Perez, Soledad es_ES
dc.contributor.author Sabater i Serra, Roser es_ES
dc.date.accessioned 2022-02-14T11:05:16Z
dc.date.available 2022-02-14T11:05:16Z
dc.date.issued 2019-03-13 es_ES
dc.identifier.isbn 978-84-09-08619-1 es_ES
dc.identifier.issn 2340-1079 es_ES
dc.identifier.uri http://hdl.handle.net/10251/180778
dc.description.abstract [EN] The paper presents an educational software designed to simulate the behaviour of an electric transformer under no-load, shortcircuit and load test, measuring its input and output magnitudes through network analysers, and enabling the supply voltage and load regulations. This virtual laboratory allows to achieve several objectives. First, the student becomes familiar with the system to be operated in the real laboratory, reducing the subsequent electrical risk and optimizing the time required for carrying out the practice. Second, it enhances the understanding of transformers behaviour, its modelling through the equivalent electrical circuit, and the calculation of its two most characteristic parameters during its operation (performance and internal voltage drop). Finally, the application auto evaluates the transformer characterization performed by the student. The simulator reproduces schematically, but precisely, the assembly that the student faces during the lab lesson: an autotransformer to regulate the supply voltage, a transformer, two input and output network analysers, and different types of loads. The tool is structured in three panels. In the first panel, the student selects a transformer from 24 options, and performs its shortcircuit and no-load tests to characterize it through its electric equivalent circuit. Panels 2 and 3 enable load tests and its main characteristics calculation (performance and internal voltage drop). The student results are introduced in the app to perform auto-evaluation. To measure the performance and usefulness of the application, it has been implemented in the lab lessons of the subject ¿Electrical Technology¿, belonging to the Bachelor¿s Degree in Industrial Electronics and Automation Engineering, taught at the Polytechnic University of Valencia (Spain). The sample size is 96 students and the methodology used is as follows. The 96 students are subdivided into four groups. The practice lessons follow this sequence: a refreshment of the transformer concepts needed + explanation of the practice lesson to be performed + explanation and use of the app solving an example (only for groups 1 and 2) + real laboratory experience + final test on transformers. Finally, the performances between groups 1-2 and 3-4 are compared. It is observed that the students of groups 1 and 2 obtain better results in the final tests than those of groups 3 and 4, reaching higher levels of learning thanks to the previous use of the simulator. On the other hand, it is also observed that the time of completion of the real laboratory practice decreases substantially in groups 1 and 2. As a conclusion, there is a great benefit in using this application specifically designed to obtain very specific learning results, since the application is fully adapted to the needs of the degree and therefore to the level of knowledge that the students need to acquire according to the perception and experience of the teaching staff. Finally, based on the results, the application is permanently implemented in the laboratory lessons of Electrical Technology. es_ES
dc.description.sponsorship This project is supported by Universitat Politècnica de València through the Project of Innovation and Educational Improvement Program (PIME 2018-2019/B26). es_ES
dc.language Inglés es_ES
dc.publisher IATED es_ES
dc.relation.ispartof INTED2019 Proceedings es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Virtual laboratories es_ES
dc.subject E-learning es_ES
dc.subject Educational software es_ES
dc.subject.classification INGENIERIA ELECTRICA es_ES
dc.title A virtual laboratory for an enhanced and safe understanding of the electric transformers operation es_ES
dc.type Comunicación en congreso es_ES
dc.type Artículo es_ES
dc.type Capítulo de libro es_ES
dc.identifier.doi 10.21125/inted.2019.2277 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PIME%2F2018%2FB26/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Eléctrica - Departament d'Enginyeria Elèctrica es_ES
dc.description.bibliographicCitation Bonet-Jara, J.; Pons Llinares, J.; Bernal-Perez, S.; Sabater I Serra, R. (2019). A virtual laboratory for an enhanced and safe understanding of the electric transformers operation. IATED. 9177-9186. https://doi.org/10.21125/inted.2019.2277 es_ES
dc.description.accrualMethod S es_ES
dc.relation.conferencename 13th International Technology, Education and Development Conference (INTED 2019) es_ES
dc.relation.conferencedate Marzo 11-13,2019 es_ES
dc.relation.conferenceplace Valencia, Spain es_ES
dc.relation.publisherversion https://doi.org/10.21125/inted.2019.2277 es_ES
dc.description.upvformatpinicio 9177 es_ES
dc.description.upvformatpfin 9186 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.relation.pasarela S\392694 es_ES
dc.contributor.funder Universitat Politècnica de València es_ES


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