Ongoing work on the second generator at Ering-Frauenstein HPP
Following the commissioning of G3generator at the Ering-Frauenstein Hydroelectric Plant in mid-2022, we successfully performed factory acceptance testing of the G2 generator stator (35 MVA, 10.5 kV, 68.2 rpm, 50 Hz) in November, under the supervision of the customer. The stator was then lowered into position in the generator pit.
The power plant is located on the river Inn on the Austrian-German border, and the scope of the project includes the delivery of a new stator, rotor and other auxiliary generator systems, as well as disassembly, assembly and commissioning.
The special feature of the project is that the manufacturing of the new stator and rotor is preformed on-site.
Rotor star welding, chain assembly and pole assembly took place at the power plant, while the size necessitated the stator core packaging and stator winding insertion to be performed outside the power plant in a specially designed tent.
The G2 generator is planned for final assembly and commissioning in March 2023. In the meantime, the Austrian power company Verbund has ordered the third generator, G1, with on-site work set to commence in spring next year.