Robert Dahlander

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Robert Dahlander 1910

Robert Dahlander (born June 9, 1870 in Gothenburg , Sweden , † October 18, 1935 in Stockholm ) was a Swedish engineer and son of Gustaf Robert Dahlander . After Robert Dahlander is used in the electric drive technology Dahlander , a circuit for speed control of electric motors , named.

Robert Dahlander studied physics at the Royal Technical University of Stockholm until 1890 and worked for the electrotechnical company ASEA from 1893 . In 1897 he developed the Dahlander circuit with the help of which the speed of asynchronous motors could be halved by changing the pole .

Under the direction of Dahlander, test operations for electric propulsion with single-phase alternating current were carried out at the Swedish Statens Järnvägar from 1905 to 1907 on the Tomteboda - Värtan (6 km) and Stockholm - Järfva (7 km) routes . Detailed investigations of all components of the vehicles and the energy supply as well as the costs and financial feasibility were carried out. From this, Dahlander formulated the realization that for railway operations there could hardly be a “simpler and cheaper operating mode than that of the single-phase alternating current used”. In 1908 he became director of the gas and electricity works in Stockholm.

literature

  • Robert Dahlander: Experiments with electrical operation on Swedish state railways, carried out during the years 1905/07, authorized abridged translation of the report to the Royal. General management of the State Railways in Munich and Berlin 1908, R. Oldenbourg. 188 p. With numerous illustrations.
  • Kurt Jäger, Friedrich Heilbronner: Lexicon of electrical engineers . 2nd Edition. VDE-Verlag, 2010, ISBN 978-3-8007-2903-6 , p. 93 ( Table of Contents [PDF; 125 kB ]).

Individual evidence

  1. ↑ German Imperial Patent DRP 98.417: Arrangement to achieve two different numbers of poles in asynchronous AC motors , February 11, 1897
  2. ↑ Zentralblatt der Bauverwaltung of the Prussian Ministry of Public Works from 1909 under "Experiments with electrical operation on Swedish state railways"
personal data
SURNAME Dahlander, Robert
BRIEF DESCRIPTION Swedish engineer
DATE OF BIRTH June 9, 1870
PLACE OF BIRTH Gothenburg , Sweden
DATE OF DEATH October 18, 1935
Place of death Stockholm , Sweden