After eight months of testing and verification, FusionDrive®, the industry’s most advanced gear and generator combination is now a validated drivetrain. The smallest and most lightweight combo in the market has proven to reach 96.6 percent efficiency, leading to an excellent energy yield.
The gear and generator combination, in commercial production for DeWind, is a joint effort of Moventas and permanent magnet generator supplier The Switch.
FusionDrive enables higher drivetrain efficiency due to a better power curve and overall efficiency. It has a lower drive train mass and requires less material and its compact design allows lighter overall turbine layout.
Added to great serviceability and potential for up-tower repairs, which reduce maintenance and repair costs, all FusionDrive benefits help reduce the LCoE (Levelized Cost of Energy) by a total of 6 percent comparing to a 3MW onshore turbine with conventional drivetrain concept.
FusionDrive with 3000kNm shaft torque carrying capacity has recently completed comprehensive factory verification process at the Moventas R&D center in Jyväskylä, Finland. FusionDrive’s overall efficiency exceeded all expectations; a 96.6 percent efficiency was reached already in 65 percent of the operation nominal.
The full load tests of the FusionDrive showed good dynamic behavior and an overall sound power level of < 96 dB(A) in all operation phases. The combo’s vibration tests also exceeded expectations
In addition to normal testing phases including component, climate chamber and load testing, the verification process was modified to verify also one of the design priorities—FusionDrive’s excellent serviceability that will revolutionize wind power maintenance costs.
A complete FusionDrive service without an external crane is now proven to be possible. This significantly reduces maintenance and repair life cycle cost—according to Moventas’ calculations—by as much as 15 percent. Moventas specializes in challenging up-tower repair methods as well as preventive maintenance, the spearhead of which is the CMaS Condition Management System that overlooks turbines with as many as seven key parameters.
For more information, visit www.moventas.com, www.theswitch.com, and www.dewindco.com.













The recently completed test bench will be able to test over 200 gearboxes annually. ZF Services, LLC launched this new project with an open house on May 8th—coinciding with WINDPOWER 2013—while hosting their customers and local vendors at the Vernon Hills facility to showcase the test bench, redesigned facility and extensive portfolio of technical possibilities. The recently completed test bench and redesigned facility now allows the company to offer an even wider range of services, providing a tailor-made one-stop shopping approach for multi-brand gearbox and mechanical drive train repair.
The HYTORC Avanti, shown here, can be used for standard torque or upgraded for Stretch-to-Load with additional drivers. This system eliminates the need for reaction arms and backup wrenches, which makes the job faster, by eliminating arm placement and the need for extra personnel, and safer, by eliminating dangerous pinch points. Furthermore, the HYTORC Nut, a Stretch-to-Load fastener, completely eliminates bolt damage, preventing the need for replacement bolts during maintenance.
At the heart of the ExoFit NEX are the company’s three-pronged commitment to comfort, function, and durability. 
3M™ Renewable Energy Division introduced an innovative solution for wind turbine blade protection at WINDPOWER 2013 on May 6. 3M Wind Blade Protection Coating W4600 is a two-component polyurethane coating that provides excellent erosion protection properties to help prevent and repair leading edge erosion on wind blades.







