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Generalized reluctances in eddy current magnetic circuits

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To the memory of a great teacher of operational calculusHenning Pleijel (1873–1962) Professor of theoretical electrotechnics 1913–1934 at the Royal Institute of Technology, Stockholm

Summary

The concept of generalized—complex or operational—reluctances is introduced. It is shown that these reluctances simplify considerably the calculation of systems, containing magnetic circuits with eddy currents. Two simple applications are worked out. Some results from a numerical study of the magnetic flux on breaking a telephone relay are given.

Übersicht

Es wird gezeigt, wie der Begriff eines verallgemeinerten, komplexen oder operatorischen magnetischen Widerstandes („Reluktanz”) eine bequeme Behandlung von Problemen über wirbelstrombehaftete magnetische Kreise zuläßt. Zwei einfache Beispiele werden durchgerechnet. Die Ergebnisse einer Untersuchung des magnetischen Flusses bei Ausschaltung eines Telephonrelais werden angedeutet.

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Literatur

  1. Ekelöf, S.: Über die Berechnung von wechselstromgespeisten magnetischen Kreisen. Z. Fernmeldetechn. 16 (1935) p. 39.

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  2. Ekelöf, S.: The development and decay of the magnetic flux in a non-delayed telephone relay (A study of telephone relays—3). Ericsson Techn. 13 (1957): 2, 259–308 [also Trans. Chalmers Univ. Tech. (1957): 192, 49 pp. and Acta polytechnica 8 (1957): 240, 49 pp.].

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  3. Herlitz, I.: Erzeugung von stationären Magnetfeldern in einem elektrisch leitenden Material. Arkiv Mat. Astr. Fys. No. 22, 1920.

  4. Mulligan Jr., J. H.: The use of iterated Laplace transformations in the solution of combined circuit-field problems. Trans. A.I.E.E. 78 (1959), Comm. and Electr., p. 506.

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Ekelöf, S. Generalized reluctances in eddy current magnetic circuits. Archiv f. Elektrotechnik 49, 67–72 (1964). https://doi.org/10.1007/BF01578791

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