In the hydropower sector, Krebs & Aulich has been supplying generators with permanent magnet excitation for low- and medium-pressure systems from 50 kW to 3,000 kW since 2007.
These are characterised by the inverter-free mains parallel operation of the generator and extremely high efficiency, even at partial load operation.
Power range:
50 kW to 3,000 kW
Lowest realised speed:
93.75 rpm (at 19 kNm and 190 kW)
Maximum torque Bulb:
192 kNm (at 2.8 MW and 187 rpm)
Maximum torque V1:
76 kNm (at 150 rpm 1.2 MW)
Guaranteed power factor:
> 0.9 cosĪ in the power range of 25%-125%
Efficiency:
up to 98% at full load, up to 97% at 25% load
Up to 30 % higher efficiency thanks to better utilisation in partial load operation
Noise emissions can be reduced by eliminating gearboxes, especially when retrofitting existing sites. Due to the higher overall efficiency, higher electricity yields are achieved and the higher price compared to an asynchronous machine is amortised in a short time.
The mobile hydropower plant with bulb generator, which was developed together with our partner company, fulfils the highest ecological and urban planning requirements.
The submerged powerhouse, over- and underflow installation and parallel fish ladders make the mobile hydropower plant ideal for upgrading existing crossing structures.
Mobile hydropower plants are already in use at several locations in Switzerland, Germany and Austria.
