| PERFORMANCE
PARAMETERS |
| Nominal Electrical Power |
750/180 kW |
| Effect Regulating |
Active Stall Regulating (ASR) |
| ROTOR
|
| Rotor Diameter |
46 m |
| Speed |
25.7 rpm at full load |
| Number of Blades |
3 wings placed upwind |
| Rotor area |
1661.9 m² |
| Tilt angle |
4° |
| Coning angle |
2.8° ahead |
| BLADE |
| Type of wings |
LM 21.0 P |
| Tip speed |
61.9 m/s at full load. (138.5 mph) |
| Tip angle |
-4.4° nominal, by pure stall regulating
without ASR |
| BRAKE
SYSTEM CONTROL |
| Wing bearing |
4-points pre-tighten ball bearings |
| Wing break, normal |
Turning to -15°, activated by
the ASR system |
| Wing break, full |
Turning to -85° 'fail-safe',
activated by a accumulator system in the hub |
| Speed of turning |
10 °/sec. |
| Mechanical break |
The 'fail-safe' type |
| Break moment |
1.7 times nominal moment |
| RPM max. value |
1600 rpm, on the fast going axle |
| GENERATOR |
| Type |
Closed, 4-poled, double angle, induction,
IP54 |
| Generator speed |
1000/1500 rpm synchrony |
| Loss in generator |
3 % |
| Generator slip: |
1.3% |
| Generator cut-in |
By thyristors and ASR controlled
gradually cut-in |
| Grid connection |
50 Hz, 690 V or by specification |
|
YAW SYSTEM |
| Yaw motors |
4 electric powered, with build-in
breaks |
| Yaw brakes |
9 hydraulic disc breaks |
| Yaw bearing |
4-point pre-tighten ball baring,
or integrated slide baring |
| TOWER |
| Type |
Conical steel tower |
| HubHeight |
From 45 to 70 mete |
| CONTROL
SYSTEM |
| Type |
CC Electronic (Mitsubishi PLC) /
WEA ENGINEERING A/S |
| Wind speed for start |
4 m/s, based on 10 minutes average |
| Cut-out wind speed |
25 m/s, based on 10 minutes average |
| APPROXIMATE
SYSTEM DESIGN WEIGHTS |
| Weight of wings |
2.100 kg |
| Weight of cabin |
22.000 kg |
| Weight of hub and extensions |
8.000 kg |
| MAXIMUM
NOISE LEVEL |
| 100 dBA |
