DW 750*52

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EWT

This new company in the windener-gy, took over the technology and theknow-how from the former turbinemanufacturer Lagerwey theWindmaster. In this way, the compa-ny has acquired a rich history ofinnovation and technological break-throughs, producing cost-effective,high yeilding wind turbines.

The DW 750 is using the highlyadvanced direct drive technology.With this technology, the gearbox isabsent, and the number of compo-nents is reduced significantly. A designed single bearing systemsupports the rotor and the genera-tor, rotating in one unit. As a result,the vulnerability has been reducedto a minimum and the maintenanceprocedures simplifed. Due to the fullvariable speed and the full powerback-to-back converter the turbineproduces electrical power of anexcellent quality.

Power Quality

Optimised grid properties allow for better utilisation of existinginfrastructure and may save gridconnection costs. The variable speed750 kW turbine is ready for presentand future requirements, due to itssophisticated converter system andadvanced control electronics. Animportant programmable function isthe power factor, which can beadjusted on demand.

Specifications

GeneralRotor diameter 51,5 mRotor speed Variable, nominal 27 rpmNominal power 750 kWRated wind speed 12 m/sCut out wind speed 25 m/sSurvival wind speed 60 m/sRotor speed control Blade pitchControl Microprocessor, main functionsWind class IIA, according to IEC 61400

TransmissionType Direct drive

GeneratorMake & Type DirectWind multiple-pole, synchronousVoltage 690 VDiameter 5,5 mGrid connection IGBT-controlled AC-DC-AC converter

TowerConstruction Conical, tubular, steel with internal ascentHub heights 40, 50 and 75 m

SafetyMain Individual independant blade featheringSecondary Blade feathering by three independent

battery back-up drives

DW

75

0

EWT reserves the right to change specifications without notice. No rights can be derived from these specifications.

EWT B.V.

Hanzeweg 25

3771 NG Barneveld

The Netherlands

Phone +31 (0)342-426171

Fax +31 (0)432-426199

E-mail: info@directwind.nl

Power curve DW 52*750