ABSTRACT
The Kesselbach collecting works consist of a Tyrolean dam with an intake gate preceded by a 35 m long desilter. The desilter is below ground with the overflow directed towards the Schlegeis-Rosshag power-plant pressure tunnel. During the snow-melt period and during thunderstorms the greater risk of silt build-up in the desilter basin increases the risk of strongly polluted water entering the pressure tunnel, thus causing damage to the turbines at the Rosshag power plant. The photovoltaic plant has a maximum power output of about 1500 W at a rated voltage of 24 V. A battery plant with a total capacity of 1800 Ah can power the Kesselbach collecting works for at least two weeks of cloudy weather. The 24 V battery plant provides energy for the electric motor of a hydraulic unit for the intake gate and the direct drive of the scouring gate, as well as for measuring, control, remotecontrol and telecommunications equipment.
