50kw Wind Turbines | Agricultural, Light Industrial | Wind Generators

50kW Variable Pitch

50kw Wind Turbines Power Curve

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.  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 (20.1) m/s (mph)
Cut-In Speed 2.7 (6.0) m/s (mph)
Cut-Out Speed 25 (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. -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