The gearbox converts the low rotor speed of the main shaft into high rotational speed which is necessary for generator operation.

Currently the gearboxes developed jointly with our gearboxpartners have three stages and gearratios ranging from 1:75 to 1:120.

An oil pump supplies the gearbox with oil. The oil is filtered by a micro-filter system and comprises an oil-cooling device.

The internal oil heating is equipped with heating rods. It operates when the oil sump temperature is below a defined temperature value.

External fan heaters are mounted underneath the gearbox for operation in cold climate conditions (Low Temperature Version only).