The P19-50kW-VSVP Wind Turbine from Polaris offers innovation through a completely new Permanent Magnet Direct Drive generator, with its variable speed and Variable Pitch blades system the innovative design offered by Polaris has half the parts of a conventional geared Turbine. Allowing for simplified maintenance and extreme reliability and thus increase in efficiency. Click on the thumbnail to the right to view the Power Curve chart
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Specification Chart
| Parameter | Value | Unit of Measurement |
|---|---|---|
| Rated Power | 50.0 | kW |
| Rotor Diameter | 19.2(63.1) | m (ft) |
| Rated Wind Speed | 9.5 (21.3) | m/s (mph) |
| Cut-In Speed | 2.7 (6.0) | m/s (mph) |
| Cut-Out Speed | 25 (55.9) | m/s (mph) |
| Survival Speed | 59 (132) | m/s (mph) |
| Operational RPM | 68 | rpm |
| Weight | 6,443(14,200) | Kg (lb) |
| Std. Operating Temp. | -25 to 50 (-13to122) | °C (°F) |
General Specifications – General Turbine Design Features
| General Configuration | Description |
|---|---|
| Type | Horizontal Axis, Upwind |
| Design Class | IEC Class II (air density 1.225 kg/m3, average annual wind below 8.5m/s, 50-yr peak gust below 59.5m/s) |
| Design Life | 20 Years |
| Drive Train | Description |
| Generator Type | Permanent Magnet (PM) |
| Type | Direct Drive |
| Speed Regulation | Description |
| Generator/Blades | Torque Control from Drive/Variable Pitch |
| Yaw System | Description |
| Active Yaw | Active, Electromechanically driven with the wind direction / speed sensors and automatic cable unwind |
| Control/Electrical | Description |
| Mounting | Off Nacelle / Mounted, wired, tested and programmed in NEMA rated 3R enclosure |
| Compliant | UL 1741, IEEE 1547 |
| Power Converter | VFD (Variable Frequency Drives) |
| Braking Systems | Description |
| Emergency Back Up Speed Regulation | Regenative Brake |
| Loss of Grid Power / DC Buss Overvoltage | Dynamic Resistive Brake |
| Emergency Shutdown / Parking | Redundant Magnetic Failsafe Brake |
| Tower | Description |
| Mono Pole / Tubular | Sectional / Flanged21M, 30M, 36M, 50M |
| Environmental Standards | Description |
| Temperature Range | -25°C to 50°C (-13°F to 122°F) – Standard |
