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Elimination of Transformer Inrush Current by Three-Phase Linkage Circuit Breakers

  • Chunfang Zhao
  • Yundong SongEmail author
  • Dewei Kong
  • Yue Yang
  • Dan Luo
  • Yaling Jin
  • Rui Guo
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 1075)

Abstract

The random switching of power transformers may generate high inrush currents. These currents have undesirable effects, including potential damage or loss-of-life to the transformer, protective relay misoperation, and reduced power quality on the system. Controlled transformer switching can eliminate these transients if residual core and bias flux are taken into account in the closing methods. This paper explores the practical considerations of residual and bias flux transients, performance of control strategies, and the application of three-phase linkage circuit breakers to control transformer inrush transients, and a simulation has been taken to test its feasibility.

Keywords

Transformer Inrush current Bias flux Simulation 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Chunfang Zhao
    • 1
    • 3
  • Yundong Song
    • 2
    Email author
  • Dewei Kong
    • 1
  • Yue Yang
    • 1
  • Dan Luo
    • 1
  • Yaling Jin
    • 1
  • Rui Guo
    • 1
  1. 1.College of Information TechnologyShenyang Institute of TechnologyFushunChina
  2. 2.Electric Power Research Institute, State Grid Liaoning Electric Power Co., Ltd.ShenyangChina
  3. 3.School of Electrical EngineeringShenyang University of TechnologyShenyangChina

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