Lyon-Moutiers DC transmission scheme
Encyclopedia
The Lyon–Moutiers DC transmission scheme was the most powerful mechanical high voltage direct current electric power transmission scheme ever built. Designed by Rene Thury
, it was used between 1906 and 1936 for power transmission from a hydroelectric
power plant at Moutiers
to Lyon
, France.
At the Moutiers power plant, there were four generators switched in series
, whereby one turbine drove two generators. As the power demand changed, the number of generator switched in series varied, and so did the voltage in the transmission line.
The line was bipolar with a maximum of 75,000 volts to ground
and so 150,000 volts between the conductors. The line was 200 kilometres long, with 190 kilometres run overhead and 10 kilometres as paper insulated underground cable. Originally the cable was rated for 75 A, but was later run with 150 A. Even after this increase in current the cable was still in good condition when the scheme was dismantled in 1936.
René Thury
René Thury was a Swiss pioneer in electrical engineering. He was known for his work with high voltage direct current electricity transmission and was known in the professional world as the "King of DC." -Biography:...
, it was used between 1906 and 1936 for power transmission from a hydroelectric
Hydroelectricity
Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy...
power plant at Moutiers
Moutiers
Moutiers and Les Moutiers is the name or part of the name of several communes in France:*Moutiers, in the Eure-et-Loir département*Moutiers, in the Ille-et-Vilaine département*Moutiers, in the Meurthe-et-Moselle département...
to Lyon
Lyon
Lyon , is a city in east-central France in the Rhône-Alpes region, situated between Paris and Marseille. Lyon is located at from Paris, from Marseille, from Geneva, from Turin, and from Barcelona. The residents of the city are called Lyonnais....
, France.
At the Moutiers power plant, there were four generators switched in series
Series and parallel circuits
Components of an electrical circuit or electronic circuit can be connected in many different ways. The two simplest of these are called series and parallel and occur very frequently. Components connected in series are connected along a single path, so the same current flows through all of the...
, whereby one turbine drove two generators. As the power demand changed, the number of generator switched in series varied, and so did the voltage in the transmission line.
The line was bipolar with a maximum of 75,000 volts to ground
Ground (electricity)
In electrical engineering, ground or earth may be the reference point in an electrical circuit from which other voltages are measured, or a common return path for electric current, or a direct physical connection to the Earth....
and so 150,000 volts between the conductors. The line was 200 kilometres long, with 190 kilometres run overhead and 10 kilometres as paper insulated underground cable. Originally the cable was rated for 75 A, but was later run with 150 A. Even after this increase in current the cable was still in good condition when the scheme was dismantled in 1936.
External links
- http://books.google.com/books?id=HUCieJjeQ-wC&pg=PA94&lpg=PA94&dq=moutiers+lyon+system+thury&source=web&ots=v8VNsz1XtX&sig=I2AGLyeEeUcIzI3iYV7OnAM44IM#PPA95,M1
- http://www.electrosuisse.ch/cms.cfm/s_page/74440