Romax Technology, a designer of gearboxes and drivetrains for the wind power industry, has launched a new medium-speed drivetrain intended for the next generation of onshore and offshore wind turbines ranging from 3 MW to 10 MW in capacity.
Romax says one of the key benefits of the Butterfly platform is that it offers turbine designers and manufacturers a quicker route to market and reduced risk with their new turbine products. Furthermore, because Romax is a designer and not a manufacturer, customers are not tied to a single supply source, the company notes.
The Butterfly drivetrain platform offers multiple component and subassembly sourcing options, and covers all elements of the drivetrain, including the rotor-shaft assembly, gearbox, generator, bearings, couplings, brake system and lubricating system. It is also designed to exceed GL2010 and IEC 61400 requirements.
The Butterfly drivetrain platform offers a number of flexible design options, including a two-bearing or moment-bearing front-end arrangement, multiple generator technologies and multiple mainframe configurations. A key feature of the Butterfly platform is that the gearbox and generator are semi-integrated, which shortens the drivetrain and eliminates issues such as poor alignment between the two components, Romax explains.