Peggau-Deutschfeistritz power plant

Peggau-Deutschfeistritz power plant
	Weir system
	location
Coordinates	47 ° 12 '32 " N , 15 ° 20' 9" E Coordinates: 47 ° 12 '32 " N , 15 ° 20' 9" E
country	Styria , Austria
place	Deutschfeistritz , Frohnleiten , Peggau
Waters	Mur
	f1
	power plant
owner	Verbund Hydro Power GmbH since April 1, 2002
construction time	1903-1908
Start of operation	1908 and 1965
	technology
Bottleneck performance	13.2 megawatts
Expansion flow	55 m³ / s
Standard work capacity	81.2858 million kWh / year
Turbines	2 × Kaplan turbines
Generators	2 × 8,000 kVA three-phase synchronous generators
	Others
Website	Verbund.com
was standing	September 2017

The Peggau-Deutschfeistritz power plant , also known as the Peggau run-of- river power plant , is a run-of-river power plant ( diversion power plant ) built between 1903 and 1908 in the communities of Deutschfeistritz , Frohnleiten and Peggau in Styria , Austria . It is designed for an output of 13.2 MW and has an annual generation of 81,285.8 MWh. It is one of the most important examples of the early Austrian electricity industry and is a listed building.

location

The weir system with weir bridge (2011)

The power plant is located directly on the Mur . While the machine house is in Deutschfeistritz , the weir system with its right bank spans the Mur between the Frohnleitner district of Adriach and the municipality of Peggau . The tunnel leads under the Kugelstein from Adriach to Deutschfeistritz.

history

In 1903 the Swiss Railway Bank started together with the Swiss construction company Albert Buss & Cie. with the planning of a diversion power plant near Deutschfeistritz. With the construction of the power house on the site of an old silver mine according to plans by Josef Hötzl , Albert Buss & Cie. started in 1906. In the same year, the construction of the associated weir system at Adriach and the service water canal, which was created as a tunnel, began. The five double Francis turbines of the power plant went into operation on December 2nd, 1908. The electricity generated by the power plant was used to supply the Guggenbach paper mill in Übelbach and the Leykam-Josefsthal paper mill in Gratwein and the railway line between Peggau and Übelbach. In 1910, the power plant came into the possession of the Steiermärkische Elektrizitäts-Gesellschaft, or STEG for short, which arose from a merger of the power plant companies Deutschfeistritz and Lebring .

In the early 1960s, STEG began planning work on expanding the power plant. Since the previous power house could not be expanded, it was decided to replace it with a new building, whereby the old power house was retained. In addition, the upper water canal was extended during the expansion, whereby the historic service water tunnel and the weir system were preserved. The new power house went online in September 1965. The machines in the old power house were dismantled by 1967 and the building was adapted for offices and a workshop. The outlets at the main gate and in front of the surge flap were fitted with energy destroyers in 1968. In the same year a sleeper was also built. A room hut, which was located north of the power station, was demolished in 1979 and replaced by a garage. Between 1986 and 1988 the impellers of the turbines were replaced due to cracks on the blades. In the place of the old steam center in the old power house, a new 20 kV switchgear was built in 1988 after the old one no longer proved to be short-circuit-proof after the Rabenstein power plant went into operation . In addition to the switchgear, an office building was built in 1991 and the new power house was expanded in 1994 and 1995 to provide space for computer and remote control rooms.

From the year 2000, the power plant was controlled remotely from the STEG central control room in Graz and the machines were automated. On April 1, 2002, the power plant went to VERBUND-Austrian Hydro Power AG , which renovated the old power house and also set up offices in the former workshop, including for the subsidiary Verbund Telekom Service GmbH, and an archive for the Styrian plant group.

description

Old power house

The northern tunnel portal in Adriach, inscription "1906–1908" (2011)

The entire old power plant, but especially the old power house , was designed according to plans by the architect Josef Hötzl . The power house, an elongated reinforced concrete skeleton structure with six window axes on the main facade and corner projections , was designed like a castle and provided with rich Art Nouveau decor. The main facade has six large arched windows under which there are the outlet openings for the turbines, designed as segment barrel vaults . On the left and right of the main and middle wing of the power house, there are two axles. three-storey side wing. The top floor ceiling has a flat vault with iron columns while the remaining ceilings are free-spanned wooden ceilings. The roof trusses were made partly of wood and partly of iron. All the windows and doors of the old power house are iron. The partition walls of the central wing were removed in order to set up an open-plan office. The attic zone of the underwater facade partially takes up a quarter of the height of the building and is decorated with fine ornaments. Nothing has been preserved from the former technical equipment of the power house.

In front of the machine house there is a large water basin with a rake into which the headwater channel flows.

New power house

The new power house was built by 1965 according to plans by the Swiss engineering office A. Aegerter & Dr. O. Bosshart AG established. The power house is an L-shaped steel frame building made of prefabricated parts with large windows and a flat roof. The double-glazed windows are provided with green matt bar glasses. The machine hall is located in the southern wing of the building, while the operating rooms are in the northern wing. The main entrance to the building is in the northeast, while the access to the machine hall is through a soffit clad with artificial stone with a four-part, steel folding door. The main facade of the power house is located in the southeast and consists of a closed part behind which the assembly area is located and an open and glazed part. The lowest storey is divided into four fields with four windows each using reinforced concrete pillars. The middle front protrudes from the main facade level and is designed as a glass surface. Above the central front there is a skylight, which is also divided into four fields . The ceiling construction consists of reinforced concrete slabs which rest on prefabricated beams made of reinforced concrete .

To the north of the machine hall are the storage rooms and the technical operating rooms.

Weir and lock system

A weir system around 100 meters long with a weir bridge made of reinforced concrete is also part of the power plant. The bank walls are secured by stone dams. The bridge has four river piers about two meters thick, which are spanned by five arched cages , each with a span of about 12 meters. Of the total of five bridge fields, the three in the middle form the basic weir. The westernmost field is designed as a raft lane with a guide wall that extends far forward. The easternmost field served as a base and chamber lock. The lock is 12 meters wide and 36 meters long and had double gates. The iron gates of the lock can be moved with the help of racks. The systems for regulating the water level inside the lock are no longer preserved. Next to the weir there is a canal inlet that branches off to the side and is equipped with a flood shield and mud lock. The canal inlet and the headwater canal are separated from each other by a lock construction. All machines come from JM Voith .

Inlet channel or process water channel

The approx. 3.2 km long inlet canal of the power plant leads over a distance of 1073 meters as a tunnel under the Kugelstein near Adriach - Badl , the Jungfernsprung and the Klausenwand , opposite the historic Badlwandgalerie . The tunnel has a cross-sectional area of approx. 60 m². The two tunnel portals are designed in historicist forms and are also under monument protection ( northern and southern tunnel portal ).

Web links

Commons : Kraftwerk Peggau-Deutschfeistritz - Collection of images, videos and audio files

Peggau run-of-river power plant. www.verbund.com, accessed on September 17, 2017 (German).
Peggau-Deutschfeistritz power plant. www.bda.at, accessed on November 12, 2011 .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Peggau run-of-river power plant. www.verbund.com, accessed on September 17, 2017 (German).
↑ ^a ^b ^c ^d ^e Manfred Wehdorn, Ute Georgeacopol-Winischhofer, Paul W. Roth: Architectural monuments of technology and industry in Austria . 2, Styria and Carinthia. Böhlau Verlag Gesellschaft mbH and Co. KG, Vienna 1991, ISBN 3-205-05202-1 , p. 6-7 ( on Google Books ).
↑ ^a ^b ^c ^d Peggau-Deutschfeistritz power plant. www.bda.at, accessed on November 12, 2011 .
^ ^A ^b Manfred Wehdorn, Ute Georgeacopol-Winischhofer, Paul W. Roth: Architectural monuments of technology and industry in Austria . 2, Styria and Carinthia. Böhlau Verlag Gesellschaft mbH and Co. KG, Vienna 1991, ISBN 3-205-05202-1 , p. 14-15 ( on Google Books ).

[Verbund-1] ↑ ^a ^b ^c ^d ^e ^f ^g Peggau run-of-river power plant. www.verbund.com, accessed on September 17, 2017 (German).

[BTIÖ1-2] Manfred Wehdorn, Ute Georgeacopol-Winischhofer, Paul W. Roth: Architectural monuments of technology and industry in Austria . 2, Styria and Carinthia. Böhlau Verlag Gesellschaft mbH and Co. KG, Vienna 1991, ISBN 3-205-05202-1 , p. 6-7 ( on Google Books ).

[BDA-3] Peggau-Deutschfeistritz power plant. www.bda.at, accessed on November 12, 2011 .

[BTIÖ2-4] A ^b Manfred Wehdorn, Ute Georgeacopol-Winischhofer, Paul W. Roth: Architectural monuments of technology and industry in Austria . 2, Styria and Carinthia. Böhlau Verlag Gesellschaft mbH and Co. KG, Vienna 1991, ISBN 3-205-05202-1 , p. 14-15 ( on Google Books ).