Vermuntwerk

Vermuntwerk
The Vermuntsee; in the background the dam
location
Coordinates	46 ° 58 '7 "  N , 10 ° 3' 22"  E Coordinates: 46 ° 58 '7 "  N , 10 ° 3' 22"  E
country	Austria  Vorarlberg
place	Gaschurn
Waters	Vermuntsee
Height upstream	1743  m above sea level A.
power plant
owner	illwerke vkw AG
operator	illwerke vkw AG
Start of planning	1925
construction time	from 1925
Start of operation	1930
technology
Bottleneck performance	156 megawatts
Average height of fall	714 m
Expansion flow	26 m³ / s
Standard work capacity	260 million kWh / year
Turbines	5 Pelton turbines
Generators	5 generators
Others
Website	www.illwerkevkw.at

The Vermuntwerk is a high-pressure storage power station from illwerke vkw and is located at the end of the Montafon valley in Partenen , a district of the Vorarlberg community of Gaschurn .

It uses the altitude difference of 714 m from Vermuntsee ( 1743  m above sea level ) to the Montafon valley ( 1030  m above sea level ) to generate electrical energy . The power house generates an average of 260 gigawatt hours of electrical energy per year with a turbine output of 156  megawatts (MW)  .

From the Vermuntwerk, the water is directed via tunnels and aqueducts to the Latschau reservoir and from there to the Rodundwerk .

history

The Vermuntwerk is the first power station of the works group of the former Vorarlberger Illwerke AG . In April 1925 it was decided to build the power station and work began that same year. As early as 1930, the power plant could be put into operation before the Vermuntsee dam was completed . The largest hydroelectric power station in Austria at the time was inaugurated in 1931 by Dean Barnabas Fink . In 1930 the power plant had four turbines with 22 MW each. In 1939 an additional turbine was added. In the years 1952 to 1953, the four old one-nozzle turbines were replaced by more powerful two-nozzle turbines with 30 MW each.

technology

Machine hall, seen from the former control room. Machine group 5 in the foreground

Machine group 5 - the Siemens-Schuckert generator in the foreground , the turbine in the back; One of the hydraulic shaft brackets is clearly visible below the crane hook

Power plant group Obere Ill-Lünersee Schematic representation

Transfer from the Brandner Glacier 2480  m above sea level A. Ill origin ( Ochsentaler Glacier ) 2460  m Tributaries Silvretta reservoir 2030  m Drain to Ill  |  Lünersee 1970  m Tributaries Kleinvermunt pumping station 1670  m Stream crossing Fasulbach and Rosanna Kops reservoir 1809  m Obervermuntwerk I 1743  m Transfer Kops-Vermunt with tributaries Tributaries Vermuntsee 1743  m Lockroom salonies 1690  m Obervermuntwerk II 1655  m Rells-, Vilifau- and Zaluandabach tributaries Storage basin rells 1456  m Rellswerk 1430  m Kopswerk II   |   Kopswerk  I   |   Vermuntwerk 1025  m Partenen compensation pool 1025  m Free-flow tunnel Partenen-Latschau Rifawerk 1005  m Rifa compensation pool 1007  m Tributaries Garnera, Vermilbach, Suggadin Lünerseewerk 992  m Latschau reservoir 992  m Latschauwerk 985  m Rodundwerk I   |   Rodundwerk II 645  m Inflow from Ill Rodund basin  I to III 645  m Drain to Ill Alvier tributary Inflow quantity Walgauwerk 492  m Walgau compensation basin 492  m Drain to Ill

Five machine groups are installed in the power house. Each machine group consists of a two-nozzle Pelton turbine and a generator. The machine groups are constructed with horizontal axes.

parameter	Machine groups 1 to 4	Machine group 5	unit
Rated turbine power	29.6	38.8	MW
Flow	5	6th	m 3 / s
rotational speed	500	500	min −1
Nominal generator power	30th	39	MVA
Nominal generator voltage	6th	6th	kV

Source of the tabular data: Illwerke

The power plant is connected to the power grid via four 6- / 110-kV and one 6- / 20- / 110-kV block transformers , a 110-kV outdoor switchgear and a 110-kV double line to the Bürs substation .

literature

• Valentin E. Wille: The founding power plants of the state producers. Architecture of former large power plants. Published in: Stalla et al .: Architecture and Monument Preservation. Studienverlag, Innsbruck-Wien-Bozen 2012, ISBN 3-70655-129-2 .

Web links

Commons : Vermuntwerk  - collection of images, videos and audio files

• Vermuntwerk - illwerkevkw.at

Individual evidence

1. ↑ ^{a b c d e f g h i j k l m n o} Vermuntwerk. (No longer available online.) Vorarlberger Illwerke, archived from the original on December 17, 2011 ; Retrieved January 1, 2012 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
2. ↑ ^{a b c d e f g h i} Technical data. (No longer available online.) Vorarlberger Illwerke, archived from the original on November 14, 2011 ; Retrieved January 1, 2012 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.