Siemens is to supply three SWT-3.2-113 direct drive turbines for the Naundorf wind farm located between Dresden and Leipzig in Germany.
Installation of the three turbines is scheduled to start in the autumn and will bring the wind farm’s total capacity to 42MW when the machines come online in early 2017.
Wind 2000’s Naundorf project was connected to the grid in 2004 with a capacity of 14MW. It was expanded by 6MW in 2005 and a further 14.4MW in 2015.
The new machines have a rotor diameter of 113 metres and are mounted on steel towers with hub heights of 92.5 metres.
Siemens said medium-voltage switchgear located in the turbine towers will enable the three turbines to connect and disconnect themselves to the grid in time staggered periods.
The company said the automatic switchgear’s ‘auto-reclosing-system’ is important because the wind turbines at the site use one grid access point that is connected to the local medium-voltage grid.
“Overloads are avoided by staggering the turbine’s energy feed into the grid in defined stages, to maintain grid stability,” Siemens said.
The order also includes a 20-year service agreement, the company added.
Image: Siemens
