Mathematische Semesterberichte

, Volume 64, Issue 1, pp 25–39 | Cite as

The general non-symmetric, unbalanced star circuit

On the geometrization of problems in electrical measurement
  • Christian Eggert
  • Ralf Gäer
  • Frank Klinker
Mathematik in Forschung und Anwendung


We provide the general solution of problems concerning AC star circuits by turning them into geometric problems. We show that one problem is strongly related to the Fermat-point of a triangle. We present a solution that is well adapted to the practical application the problem is based on. Furthermore, we solve a generalization of the geometric situation and discuss the relation to non-symmetric, unbalanced AC star circuits.


Geometry Star circuits Electrical measurement 



We would like to thank Christoph Reineke for his support in the formulation of some technical details. Moreover, we would like to thank the anonymous referees. Their remarks helped us to emphasize the main focus of our arguments.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.ThyssenKrupp Rothe Erde GmbHDortmundGermany
  2. 2.Schniewindt GmbH & Co. KGNeuenradeGermany
  3. 3.Faculty of MathematicsTU Dortmund UniversityDortmundGermany

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