POLARIS P17/50i 50KW WIND TURBINE
Polaris turbines are exceptionally versatile and can be configured to fit an array of applications. With industry best power to output ratio, the turbine design strives for simplicity.
Rated at 53kw the Polaris P17/50i is an american built turbine. With a cut in speed of 2.7m/s and its permanent magnet generator it is ideal for domestic, schools, agricultural & commercial installations(Tower heights 24m, 30m & 36.6m)
• Direct drive generator (No gearbox or belts)
• Designed to IEC 61400-01 and 02 standards
• Very efficient in medium and low wind
• For Single Phase and Three Phase
• Very low maintenance
Annual output: up to 208,000kwh
20 year FIT Rate (2011): 25.3p/kwh
Minimum Electric Rate (2011): 3.1p
Annual Income: up to £62,000
Payback: from 3 years
 
Specification Chart
| Parameter | Value | Unit of Measurement |
| Rated Power |
53.0 |
kW |
| Rotor Diameter |
16.5 (54.1) |
m (ft) |
| Rated Wind Speed |
11 (24.60) |
m/s (mph) |
| Cut-In Speed |
2.7 (6.0) |
m/s (mph) |
| Cut-Out Speed |
25.0 (55.9) |
m/s (mph) |
| Start Up Torque |
40 |
kgf*m |
| Rated Torque |
400 |
kgf*m |
| Survival Speed |
59 (132) |
m/s (mph) |
| Operational RPM |
68 |
rpm |
| Weight |
6,443 (14,200) |
Kg (lb) |
| Std. Operating Temp. |
-10 to 40 (14to104) |
°C (°F) |
Power Curve
General Specifications
General Turbine Design Features
| 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 |
| Generator Type |
Permanent Magnet (PM) |
| Type |
Direct Drive |
| Generator |
Torque Control from Drive |
| Controls |
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) |
| Emergency Back Up Speed Regulation |
Regenerative Brake |
| Loss of Grid Power / DC Buss Overvoltage |
Dynamic Resistive Brake |
| Emergency Shutdown / Parking |
Dual Caliper Disc Brake |
| Mono Pole / Tubular |
Sectional / Flanged
Hydraulic tilt up design - Optional up to 100ft |
| Temperature Range |
-10°C to 40°C (-4°F to 104°F) – Standard
-25°C to 50°C (-13°F to 122°F) – Extreme Temperature Range |
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