Vol.10, No.4, November 2021.                                                                                                                                                                           ISSN: 2217-8309

                                                                                                                                                                                                                          eISSN: 2217-8333


TEM Journal



Association for Information Communication Technology Education and Science

Teaching Short - Circuit Calculation with Off - Nominal Turns Ratio Transformers


Allen A. Castillo, M. Natalia Galván Osuna, Norma A. Barboza Tello, Alejandra J. Vega


© 2021 Allen A. Castillo, published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. (CC BY-NC-ND 4.0)


Citation Information: TEM Journal. Volume 10, Issue 4, Pages 1525-1533, ISSN 2217-8309, DOI: 10.18421/TEM104-05, November 2021.


Received: 30 March 2021.

Revised:  01 September 2021.
Accepted: 10 September 2021.
Published: 26 November2021.




Teaching short-circuit analysis is conducted primarily through case studies; however, there are not many validated short-circuit studies available on the subject, especially when considering off-nominal turns ratio transformers. In order to improve the teaching of short-circuit analysis, a three phase short-circuit study in an industrial system according to ANSI/IEEE standards by means of Zmatrix method is presented; two case studies are considered: the industrial system with nominal and offnominal turns ratio transformers, in both cases the step by step solution is given in an explicit manner and the analytical results are validated through software simulation.


Keywords –Short-circuit, Z-Matrix, off-nominal turns ratio transformer.



Full text PDF >  



Copyright © 2021 UIKTEN
Copyright licence: All articles are licenced via Creative Commons CC BY-NC-ND 4.0 licence