VERBUND's power plant of Lebring is a run-of-river plant situated on the river Mur and north of the municipality of Lebring in Styria.
*Source: ENTSO-E Production 2017
The run-of-river power plant was built between 1985 and 1988 and has two bulb turbines with a bottleneck capacity of 20,200 kW. The power plant generates an annual average of around 86 GWh and supplies valuable electricity produced entirely from hydropower for the region.
Turbines and generators: The powerhouse contains two double controllable, almost horizontally installed bulb turbines (9° inclination). With an impeller diameter of 3.85 metres each, they have a maximum output of 20,200 kW and an average annual output of 86 million kWh. The two three-phase synchronous generators have a nominal output of 11,400 kVA.
Transformers: The energy is transmitted via two 11,400 kVA block transformers installed next to the power plant access way in Boxen, which raise the generated electricity from 5 kV to 20 kV. From there, the energy is transmitted further via an underground cable duct to the switch house of Steiermärkische Elektrizitäts-AG (STEG), which is located in the old powerhouse.
Weir system: Three 6.8 metre-high segment gates with a 2.5 metre-high flap regulate the discharge of flood water. Each of the 15.5 metre-wide segments is controlled by two push cylinders arranged on both sides, while each of the flaps is operated by a centrally arranged push cylinder.
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