Overview wind power generators Synchronous and asynchronous generator, Yaw drives

Asynchronous generators Advantages for our customers VEM Sachsenwerk GmbH is worldwide active in various industry sectors and among other things puts focus on the development of machines for wind power generators. Due to our highly efficient calculation and construction departments the wind power generators are made to custom with regard to the individu- al user requirements at which our development departments collaborate closely with partners in science and research. This results into products which belong to the technological leaders on the market and set standards for the product generation...

Asynchronous generators - product examples 1.3 MW Double feed asynchronous generator Type: DAKAA 5027-6U, air/water cooling Voltage: 690 V, speed: 1,100 rpm, frequency: 50 Hz 1.5 MW Double feed asynchronous generator Type: DASAA 5023-4U, air/air cooling Voltage: 690 V, speed: 1,800 rpm, frequency: 50 Hz 1.5 MW Double feed asynchronous generator Type: DASAB 5027-6U, air/air cooling Voltage: 690 V, speed: 1,440 rpm, frequency: 60 Hz 2.0 MW Double feed asynchronous generator Type: DASAA 5025-4U, air/air cooling Voltage: 690 V, speed: 1,780 rpm, frequency: 50 Hz

Asynchronous generators - product examples 2.5 MW Double fed asynchronous generator Type: DASAA 6328-6U, air/water cooling Voltage: 690 V, speed: 1,650 rpm, frequency: 50 Hz 3.3 MW Double fed asynchronous generator Type: DASAA 6329-6U, air/air cooling Voltage: 950 V, speed: 1,200 rpm, frequency: 50 Hz 5.0 MW Double fed asynchronous generator Type: DASAA 8030-6UA, air/air cooling Voltage: 950 V, speed: 1,170 rpm, frequency: 50 Hz 6.0 MW Double fed asynchronous generator Type: DAMAK 8032-6WF, air/water cooling Voltage: 6,600 V, speed: 1,170 rpm, frequency: 50 Hz

Synchronous generators Low and high voltage synchronous generators Product information Type series Capacity range upon request 800 to 2,200 rpm (further speed ranges on request) Cooling type air/air cooling (IC 611 - IC 666), air/water cooling (IC 81 W7, IC 86 W7) Design acc. to DIN EN 60034 (IEC 72), generators for variable speed at fixed stator frequency construction types IM B3 acc. to DIN/IEC, robust, low vibration design, degrees of protection IP 23, IP 54, IP 55, thermal class F, insulation system VEMoDUR®-VPI-155 vacuum pressure impregnation (VPI), energy-efficient and environmentally...

Synchronous generators - product examples 2.5 MW Synchronous generator, brushless excited Type: DRSYZ 5623-6USW, air/air cooling Voltage: 690 V, speed: 1,650 rpm, frequency: 60 Hz 2.5 MW Synchronous generator, permanently excited Type: DPSPZ 5625-6U, air/air cooling Voltage: 690 V, speed: 1,650 rpm, frequency: 50 Hz 1.5 MW / 2.5 MW Synchronous generator, permanently excited, driveless Cooperative service Size proportions: Adult man and 6.0 MW generator

Asynchronous motors – low voltage Yaw drives As a full liner for induction machines VEM also offers low voltage machines for wind power generators. The AC asynchronous brake motors are characterised by excellent operational reliability, long lifetime and efficiency. Their modifiability permits that our drives can be used universally. High reduction precision drives are used in drive technology for highest requirements with regard to torque and speed. For these high capacity reduction drives for many years now we produce brake motors, which act as actuating drives for yaw drives. Wind parks with...

VEM Sachsenwerk GmbH Pirnaer Landstraße 176 01257 Dresden Germany Phone: +49 351 208-0 Fax: +49 351 208-1028 E-mail: [email protected] VEM motors Thurm GmbH Äußere Dresdner Straße 35 08066 Zwickau Germany Phone: +49 375 427-0 Fax: +49 375 427-383 E-mail: [email protected] www.vem-group.com VEM/03-178 E/0211 Printed in Germany. Changes reserved Image Cover: REpower, Jan Oelken