Jonas Wenström
Jonas Wenström (* 4. October 1855 in Hällefors , † 21st December 1893 in Västerås ) was a Swedish power - engineer and one of the pioneers of the Swedish electrical engineering . Around 1890 he received his country's patent on three-phase alternating current .
His father, Wilhelm Wenström (1822–1901) was a technician and responsible for a successful engineering company. Jonas Wenström studied at the universities of Uppsala and Oslo . After extensive humanistic and scientific studies and after many trips to Europe and the USA, he worked on dynamos and electric iron ore separators, among other things.
His brother Göran (Georg) Wenström (June 4, 1857 - February 25, 1927) founded the company Wenströms & Granström Elektriska Kraftbolag in 1889 . In 1890 she merged with Ludwig Fredholms Elektriska Aktiebolaget to form Allmänna Svenska Elektriska Aktiebolaget (ASEA) in Västerås.
Wenström is one of several independent inventors of the three-phase motor which he introduced in 1890. He developed the three-phase system , which included a generator, transformer and motor, with his colleague Ernst Danielson . It is not known whether Wenström was familiar with the publications of other pioneers such as Michail Ossipowitsch Doliwo-Dobrowolski , Charles Schenk Bradley or Friedrich August Haselwander that appeared before his work . In retrospect, it is certain that Wenström published and presented his work about one to two years later.
One of the first orders in 1893 was the three-phase transmission between the Hellsjön hydropower station and the Grängesberg mine in Bergslagen / Dalarna , a distance of 12 km. The voltage on the overhead line was 9.5 kV and the system was designed to transmit a maximum power of 75 kW.
Individual evidence
- ↑ ABB Technology 1/2008, page 82 (PDF; 6.1 MB)
- ↑ F. Hildebrand: On the history of three-phase current , Elektrotechnische Zeitschrift Edition A, Volume 80, 1959, Issue 13 (pages 409 to 421) and Issue 14 (pages 453 to 461)
literature
- Kurt Jäger, Friedrich Heilbronner: Lexicon of electrical engineers . 2nd Edition. VDE-Verlag, 2010, ISBN 978-3-8007-2903-6 .
| personal data | |
|---|---|
| SURNAME | Wenström, Jonas |
| BRIEF DESCRIPTION | Swedish inventor (three-phase) |
| DATE OF BIRTH | October 4, 1855 |
| PLACE OF BIRTH | Hallefors |
| DATE OF DEATH | December 21, 1893 |
| Place of death | Västerås |