K-Factor Analysis to Increase the Actual Capacity of Electrical Distribution Transformers

Daniel Contreras Ramírez, Lata García Juan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Currently, the different forms of use of electricity involves the massive use of electronic equipment, which are connected to distribution transformers, the same ones that have been operating for a few years under different operating conditions for which they have been designed. Electronic equipment constitutes nonlinear loads that are impedances that vary with the applied voltage and that when connected to the network introduce non-sine current waves known as harmonic currents, which cause several problems such as: the increase in losses in the conductive elements and the increase in temperature in the processing equipment. The K factor lets us know how much a transformer can have to power nonlinear loads. IEEE Std C57.110™-2018 will be considered on the ground that it makes recommendations regarding losses in transformers when their load has harmonic content. In this research, the authors simulate the behavior of a real system using Power Factory software to know the values of current THDs that are compared to those obtained with a power quality device. For case studies, it is obtained that the K factor for TRAFO2 transformer is 1505 and the K factor for TRAFO1 transformer is 1283; although the load of TRAFO1 is higher than the load of TRAFO2.

Original languageEnglish
Title of host publicationCommunication, Smart Technologies and Innovation for Society - Proceedings of CITIS 2021
EditorsÁlvaro Rocha, Paulo Carlos López-López, Juan Pablo Salgado-Guerrero
PublisherSpringer Science and Business Media Deutschland GmbH
Pages367-379
Number of pages13
ISBN (Print)9789811641251
DOIs
StatePublished - 2022
Event7th International Conference on Science, Technology and Innovation for Society, CITIS 2021 - Virtual, Online
Duration: 26 May 202128 May 2021

Publication series

NameSmart Innovation, Systems and Technologies
Volume252
ISSN (Print)2190-3018
ISSN (Electronic)2190-3026

Conference

Conference7th International Conference on Science, Technology and Innovation for Society, CITIS 2021
CityVirtual, Online
Period26/05/2128/05/21

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Keywords

  • Factor K
  • Harmonic currents
  • Transformer

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