The present invention relates to s wind turbine having a power generator
for generating power for a first power line of a power grid; said wind
turbine comprising a first transformer having a first primary coil
connected to said power generator and a first secondary coil connected to
said first power line for transforming a first primary voltage (vp1)
across said first primary coil to a first secondary voltage (vs1) across
said first secondary coil; further, the wind turbine according to the
invention comprises a first electric circuit connected to said first
primary coil; said first electric circuit having a first switching
element for providing a first current path parallel to said first primary
coil if said first secondary voltage (vs1) exceeds a predetermined first
voltage limit value.