Electrodynamic Forces in Main Three-Phase Busbar System of Low-Voltage Switchgear—FEA Simulation
Sebastian Łapczyński,
Michał Szulborski,
Łukasz Kolimas,
Przemysław Sul,
Maciej Owsiński,
Przemysław Berowski,
Tomasz Żelaziński,
Andrzej Lange
Affiliations
Sebastian Łapczyński
Institute of Electrical Power Engineering, Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
Michał Szulborski
Institute of Electrical Power Engineering, Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
Łukasz Kolimas
Institute of Electrical Power Engineering, Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
Przemysław Sul
Institute of Theory of Electrical Engineering, Measurement and Information Systems, ul. Koszykowa 75, 00-662 Warsaw, Poland
Maciej Owsiński
Institute of Power Engineering, Research Institute, ul. Mory 8, 01-330 Warsaw, Poland
Przemysław Berowski
Institute of Power Engineering, Research Institute, ul. Mory 8, 01-330 Warsaw, Poland
Tomasz Żelaziński
Department of Production Engineering, Institute of Mechanical Engineering, Warsaw University of Life Sciences (SGGW), Nowoursynowska 164, 02-787 Warsaw, Poland
Andrzej Lange
Department of Electrical Engineering, Power Electronics and Automation, University of Warmia and Mazury in Olsztyn, ul. Michała Oczapowskiego 2, 10-719 Olsztyn, Poland
This paper concerns the effects of electrodynamic forces that act on current paths that are part of high-grade industrial distribution switchgear. This work is composed of experimental and simulation sections. In the experimental section, the short-circuit tests are presented and the occurrence of electrodynamic forces are shown in a visible way. The formation of electrodynamic forces in the current circuits of electrical energy distribution systems is related to the flow of high currents, but mostly it is related to short-circuit currents. In order to highlight these phenomena, the detailed specification of the parameters during tests is displayed. In the simulation section, the physical phenomenon of electrodynamic forces is being captured by employing a detailed real-scale model of switchgear and current paths. Therefore, the authors proposed employment of the FEM (finite element method) in order to obtain values of electrodynamic forces acting on the current paths by executing the detailed 3D coupled simulation. The analysis of the results and aftermath effects of their interactions provided interesting conclusions that concerned the operation of such power distribution layouts in critical short-circuit conditions.
