Marcel Deprez
{{Short description|French electrical engineer}}
{{Infobox scientist
|name = Marcel Deprez
|image = Marcel Deprez ca1891.jpg
|caption =
|birth_date = {{birth date|1843|12|12|df=y}}
|birth_place = Aillant-sur-Milleron, Loiret, France
|death_date = {{death date and age|1918|10|13|1843|12|12|df=y}}
|death_place = Vincennes, Val-de-Marne, France
|residence =
|citizenship =
|nationality = French
|ethnicity =
|fields =
|workplaces =
|alma_mater =
|known_for = HVDC electricity distribution
|influences =
|influenced =
|awards = Awarded membership, French Academy of Sciences
|signature =
|footnotes =
}}
Marcel Deprez (12 December 1843 – 13 October 1918) was a French electrical engineer. He was born in Aillant-sur-Milleron. He died in Vincennes.
Biography
Deprez was born in Aillant-sur-Milleron in rural France and attended the School of Mines in Paris. He was not able to complete the course; however, he must have made a good impression, as he was employed as a secretary to the director of the school, Charles Combes.[http://www.archivingindustry.com/Indicator/chaptereight.pdf The Engine Indicator] {{Webarchive|url=https://web.archive.org/web/20160304085636/http://www.archivingindustry.com/Indicator/chaptereight.pdf |date=2016-03-04 }}, John Walters, Chapter 8, p.8-20
At Creil, from 1876 to 1886, Deprez conducted the first experiments to transmit electrical power over long distances. At the International Exposition of Electricity, Paris, in 1881, Deprez undertook the task of presenting an electricity distribution system based on the long-distance transmission of direct current. The first successful attempt took place in 1882 from Miesbach to Munich at the occasion of the Exposition of Electricity in the Glaspalast organised by Oskar von Miller. There he transmitted 1.5 kW at 2 kV over a distance of 35 miles.{{cite book |page=1|url=https://books.google.com/books?id=I2mdgdflTQUC&pg=PA1|title=High Voltage Direct Current Transmission|isbn=978-0-85296-941-0|year=1998|publisher=Institution of Engineering and Technology (IET)|author=Jos Arrillaga|access-date=2009-01-06}}
Deprez conducted experiments in La Chapelle, Grenoble, Vizille, Paris, and Creil. He eventually attained transmission over thirty-five miles for industrial purposes. In 1889, René Thury continued his approach of arranging generators in series, eventually developing commercial systems delivering 20 megawatts at 125 kV over 230 kilometers.
File:Galvanometer-MHS 68-P4070293-gradient.jpg's "fishbone" galvanometer (MHS Geneva)]]
References
{{Reflist}}
External links
{{Commons category}}
- {{Cite book
| publisher = Musée des arts et métiers
| last = Girolamo Ramunni
| title = La Revue n°23 - Juin 1998
| chapter = Machines électriques
| access-date = 2010-02-13
| chapter-url = http://www.arts-et-metiers.net/musee.php?P=157&id=10745&lang=fra&flash=f
| language = fr
}}
- {{Cite web
| title = Histoire de l'électricité. Distribution de l'énergie électrique par courant continu ou alternatif ?
| work = Association S-EAU-S
| access-date = 2010-02-13
| url = http://seaus.free.fr/spip/IMG/doc/dist/ecrire/spip.php?article601
| language = fr
}}
- {{Cite book
| publisher = Les grands noms de la houille blanche
| title = Les grands noms de la houille blanche
| chapter = Marcel Deprez
| access-date = 2010-02-13
| chapter-url = http://www.petitrain38.net/deprez.htm
| language = fr
}}
- {{Cite web
| title = Image of Marcel Deprez
| work = print sales website of the Science Museum, National Railway Museum and National Media Museum, incorporating the Royal Photographic Society Collection.
| access-date = 2010-02-13
| url = http://www.ssplprints.com/zoom.php?height=428&image=88955&noZoom
}}
{{Authority control}}
{{DEFAULTSORT:Deprez, Marcel}}
Category:French electrical engineers
Category:Members of the French Academy of Sciences
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