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WES30 Specifications
WES30 General |
| Supplier/manufacturer |
WES BV |
| Life expectancy |
20 years |
| Service/maintenance |
Twice a year |
| Nominal power |
250 kW |
| Cut in wind speed |
< 3 m/sec. (6.7mph) |
| Cut out wind speed |
25 m/sec. (56mph) |
| Nominal wind speed |
13 m/sec. (29mph) |
| Survival wind speed |
60 m/sec. (134mph) |
| Passive power regulation |
Pitching (blade-angle adjustment) |
| Active power regulation |
Fully variable back-to-back IGBT system |
| Noise emission at 8 m/s |
45dB(a) at 200m |
| Operating temperatures |
From -20°C up to +40°C |
WES30 Applied standards |
| Degree of protection |
IP55 |
| Standards |
NEN1010 (electrical) EN50308 (safety) EN6096 (wind turbines) UL1741 (anti islanding) IIEC61346-2000 (cabinet) |
| CE-mark |
Yes |
WES30 Electrical |
| Grid voltage |
400V ±10% |
| Grid frequency |
50/60Hz ±3Hz |
| # Phases |
3 phase + neutral |
| Specific power |
354 W/m2 |
| Converter type |
Back-to-back IGBT converter |
WES30 Rotor |
| Number of blades |
2 |
| Diameter |
30 m |
| Position |
Upwind |
| Direction |
clockwise |
| Angle of the main shaft |
70 with horizon |
| Swept area |
707 m2 |
| Speed |
variable 35 -70 rotations per minute |
| Power regulation |
Passive pitching (blade-angle adjustment) |
| Min. blade-angle |
1.0 |
| Flapping angle |
183 -170,50 |
WES30 Blades |
| Blade length |
13,4 m |
| Weight (1 blade) |
315kg |
| Chord |
500 – 1.200mm |
| Twist |
150 |
| Mounted |
Flexible |
WES30 Gearbox |
| Brand |
Flender (Siemens) |
| Number of stages |
2 |
| Weight |
1850kg (incl. oil) |
| Ratio |
1:26,6 |
WES30 Generator |
| Brand |
ABB |
| Type |
a-synchronous |
| Nominal power |
250 kW |
| Number of poles |
6 |
| Nominal voltage |
230/400 volt |
| Frequency |
Variable: 25 - 75 Hz. |
| Weight |
1320kg |
| Protection |
IP 55 |
WES30 Tower |
| Type |
Tubular |
| Number of sections |
3 or 4 |
| Tower height |
30, 39, 48m |
| Material |
Painted steel |
| Location ladder |
Internal |
| Type |
Lattice |
| Tower height |
36 m |
| Material |
Hot dip galvanised steel, four legged |
| Location ladder |
External |
WES30 Controller |
| Control by |
IPC (Beckhoff) |
| Remote monitoring |
Yes |
| Data logging |
Optional |
WES30 Yaw-system |
| Yaw system |
Active |
| Signal from |
wind vane |
| Driven by |
Electro motor with worm-wheel reduction |
| Power yaw-motor |
2 x 1,5 kW |
| Yaw speed |
0,770/sec. |
| Yaw bearing |
Single ball bearing; externally geared (Rothe Erde) |
| Yaw-brakes |
Constant friction-brakes; 8 pcs. |
WES30 Safety |
| First safety system |
Passive blade pitching |
| activated by: |
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| Second safety system |
Yawing out of the wind |
| activatied by |
- rotor speed (>90 rpm)
- excessive vibrations
- failure anemometer or wind vane
- failure in one of IPC’s
- grid failure
- too high inverter temperature
- fault in yawing system
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| Blocking system |
| rotor blocking system |
Parking disk brake on high speed shaft gearbox and pin in high high speed shaft; for service purposes |
| activation |
Manual |
WES30 Weights |
| Rotor incl. blades |
3.600 kg |
| Nacelle excluding rotor |
7.100 kg |
| Control cabinet |
600 kg |
| Tower |
12.500 kg (30 m. tower) |
WES30 Material specifications |
| Blades |
Carbon and glass fibre reinforced epoxy |
| Nacelle/rotor |
Steel |
| Covers |
Polyester |
| Tower |
Steel (painted) |
| Foundation |
Concrete Block with steel anchor | Measured actual power: The curve data are valid for standard atmospheric conditions of 15° C air temperature, 1013 mbar air pressure and 1.225 kg/m3air density, clean rotor blades and horizontal undisturbed air flow.
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