Braunau-Simbach power plant

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Braunau-Simbach power plant
Braunau-Simbach barrage Oberwasser.jpg
location
Braunau-Simbach power plant (Upper Austria)
Braunau-Simbach power plant
Coordinates 48 ° 14 ′ 42 "  N , 13 ° 0 ′ 24"  E Coordinates: 48 ° 14 ′ 42 "  N , 13 ° 0 ′ 24"  E
country GermanyGermany Germany
BavariaBavaria Bavaria

AustriaAustria Austria

OberosterreichUpper Austria Upper Austria
place Braunau
Waters Inn
Kilometers of water km 61.1
Height upstream 349  m above sea level NN
power plant
owner Österreichisch-Bayerische Kraftwerke AG (ÖBK)
operator Grenzkraftwerke GmbH (GKW)
construction time 1951-1954
Start of operation 1954
technology
Bottleneck performance 100 megawatts
Average
height of fall
12.10 m
Standard work capacity 550 million kWh / year
Turbines 4 Kaplan turbines
Generators 4 three-phase synchronous generators
Others
Website Braunau-Simbach
was standing 2017

The Braunau-Simbach power plant is a run-of-river power plant on the lower Inn , operated by Grenzkraftwerke GmbH (GKW). The owner of the power plant is the Österreichisch-Bayerische Kraftwerke AG (ÖBK). The power plant is located in the municipality of Kirchdorf ( Lower Bavaria ) and Braunau am Inn ( Upper Austria ). It is the first barrage on the lower Inn after the Salzach flows into the Inn .

history

The first considerations to use the water power of the Inn to generate electricity go back to 1908. In 1938 Siemens-Schuckertwerke AG presented a master plan that was decisive for further development. The location of the five barrages on the lower Inn, as they were realized during and after the Second World War , basically follows this master plan from 1938.

When the construction of the Ranshofen aluminum smelter began in July 1938, Innwerk AG was commissioned to build the Ering-Frauenstein and Egglfing-Obernberg power plants in accordance with the 1938 framework plan for powering the aluminum plant. These power plants went into operation in 1942 and 1944 respectively. The construction of the Braunau-Simbach power plant, which began in 1942, was discontinued after a few months.

On October 16, 1950, a government agreement between Austria and Bavaria founded the ÖBK with the aim of further expanding hydropower on the lower Inn. Half a year after the agreement was signed, construction of the Braunau-Simbach barrage was started as the first ÖBK power plant, using the preliminary work already made during the war. The power plant was completed in 1954.

construction

The power plant consists of a weir system with five weir fields , a dividing pillar and a power house with four turbines and the four associated generators .

The five weir openings are arranged on the Bavarian side of the Inn. Each of the five openings is 23 m wide and each of the four intermediate pillars measures 6 m in width, i.e. H. the total width of the weir is 139 m. The target is 349  m above sea level. NN . The dimensions correspond to those of the Schärding-Neuhaus and Passau-Ingling power plants.

Like the other power plants on the lower Inn , the Braunau-Simbach barrage does not have a lock .

Electrotechnical systems

The electricity is generated by four Kaplan turbines with a vertical shaft and a max. 24.0  MW output as well as four directly coupled three-phase synchronous generators , which are housed in a nacelle. The engine house is on the Austrian side of the Inn. The rotor of a generator weighs 160 t, the stator weighs 90 t.

In the switchgear , the generator voltage of 10.5 kV is increased to 110 kV using machine transformers. The switchgear is on the Austrian side.

Construction costs

The total cost of erecting the barrage was DM 116.5 million. The costs were as follows:

Million %
Land acquisition 2.1 1.8
Project planning 2.2 1.9
Construction management 1.7 1.5
Construction costs in the step area 27.9 24.0
Construction costs in the backwater 31.9 27.4
Bank fuses undercurrent 1.7 1.4
Machine equipment 26.7 22.9
Electrical equipment 16.7 14.3
Factory settlements 1.0 0.8
interest 4.6 4.0
116.5 100.0

Web links

Commons : Braunau-Simbach run-of-river power plant  - collection of images, videos and audio files

literature

Individual evidence

  1. a b c d e f g h i Braunau-Simbach run-of-river power plant. Verbund AG , accessed on June 20, 2017 .
  2. Österreichische Zeitschrift für Elektrizitätswirtschaft (ÖZE), 20th year, May 1967, issue 5, p. 166
  3. a b ÖZE, vol. 20, May 1967, issue 5, pp. 170–171
  4. a b ÖZE, vol. 20, May 1967 issue 5, p. 165
  5. ÖZE, vol. 20, May 1967 issue 5, p. 183
  6. ÖZE, vol. 20, May 1967 issue 5, p. 175