Ramsaubach Run-of-River Power Plant

VERBUND's Ramsaubach power plant is a run-of-river plant situated on the river Ramsaubach and south of the town of Eisenerz in Styria.

*Source: ENTSO-E Production 2017

The Ramsaubach power plant was built between 1983 and 1985 and, after the Erzbach small power plant, is the second plant of Eisenerzer Kleinwasserkraftwerksges.m.b.H. (EKG). A Pelton turbine with directly coupled alternating current synchronous generator generates approximately 4 GWh of electricity annually.
 
Turbines and generators: A two-jet Pelton turbine with a nominal output of 800 kW was installed in 1985. The directly coupled 1,000 kVA three-phase synchronous generator has a nominal voltage of 400 kV. 

Transformers: The generated energy is raised by a 1,000 kVA machine transformer (built in 1984) from 0.4 kV to 10 kV and fed into the 10 kV grid of STEWEAG. The power plant’s own requirements are met by a 30 kVA isolating transformer.

Weir system: The single weir field across the river is equipped with a pressure segment with weir flap. The segment is raised by pull cylinders arranged at both ends. The weir flap can be moved by a centrally arranged push cylinder. The prescribed minimum instream flow rate of 81.6 l/sec. is discharged into the tailwater via a specially installed instream line.
 

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