1.GENERAL DATA | | Nominal Power | :: 750 KW | | Rotor Diameter | :: 57.0m | | Swept Area | :: 2551.7Sq.m | | Hub Height | :: 61.1m | | Wind Turbine Class | :: III A, IEC 61400-1, ed.3 | 2.OPERATIONAL DATA | | Cut-in, Wind Speed | :: 4.0 m/s | | Rated wind speed | :: 10.7 m/s | | Cut-out, Wind speed | :: 25.0 m/s | | Survival, wind speed for 2 sec max | :: >52.5 m/s | | Maintenance wind speed | :: 13.0 m/s | 3.ROTOR | | No.of blades | :: 3 | | Rotor Postion | :: Upwind | | Rotor Speed | :: 25.20 RPM | | Rotor diameter | :: 57.0 m | | Swept Area | :: 2551.7 Sq.m | | Regulation | :: Variable speed with pitch | | Weight, rotor(Including hub) | :: 14237 Kg | 4.BLADE | | Type | :: PW 28 | | Profile Data | :: NACA 63 | | Length | :: 28.0 m | | Material | :: Fibre Glass Reinforeced Polyester(CRP) | | Weight | :: 2472 kgs | 5.HUB | | Type | :: Cast steel | | Material | :: Cast GGG 40.3 | 6.MAIN SHAFT AND BEARINGS | | Type, Shaft | :: Forged | | Materials | :: Steel alloy, 34CrNim06 | | Type, Bearings | :: Spherical roller bearings | | No. of bearings | :: 1 | 7.GEARBOX | | Type | :: 3-Stage: 1 Planetary + 2 Helical | | Ratio | :: 1:67.7 | | Lubrication | :: ISO - VG 320 (Injection method) | | Oil Volume | :: 157 ltrs | 8.BRAKE SYSTEMS | | Mechanical brake | :: Hydraulic Brake Caliper Type | | Breake Position | :: High Speed Shaft | | Aerodynamic brake | :: Hydraulic activated blade pitching | 9.COUPLINGS | | Main shaft - gearbox | :: Shrink disc | | Gearbox -Generator | :: Cordon link coupling | 10.GENERATOR | | Type | :: 4 pole, induction | | Rated power | :: 750 KW | | Voltage | :: 690 V, 3 phase, AC | | Operating Speed Range | :: 1049 - 1993 RPM | | Frequency | :: 50Hz | | Synchronous Speed | :: 1000 / 1500 RPM | | Insulation Class | :: H | | Protection Class | :: IP 55 | | Weight | :: 4500 kgs |
| | | | 11.BEDPLATE | | Type | :: Welded | | Profile, Steel | :: Bend Plate, RHS | | Surface Treatment | :: Zinc spray and coat PU paint | 12.YAW SYSTEM | | Yaw Top | :: Flange Type | | Yaw drives, motor | :: Electric (4 X 1.5 KW) | | Yaw drives, Gear | :: Planetary(x4) | | Dampening System | :: Yaw arms with friction pads (5 Nos) | | Yaw Speed | :: 0.486 per sec | | Control | :: Windvane | 13.WIND TURBINE CONTROLLER | | Type | :: PLC | | Power factor | :: Cos phi > 0.95 | | Control and monitoring of | :: Power, Voltage,Frequency | | :: Reactive Power,Imbalance | | :: Generator Overlaod | | :: Yaw drives overload, | | :: Automatic cable untwisting | | :: Activation of brake systems | | :: Grid Voltage fluctuations | | :: Grid Failure | | :: Generator Over Speed | | :: Rotor Over Speed | | :: Automatic adjustment of power factor | | :: Pitch angel and pitching distance | | Temp. measurments on | :: Control panel, converter, Gear Oil | | :: High speed shaft bearings, main bearing | | :: Generator winding & Bearings | | :: Transformer winding & oil | | :: Outside temp., Nacelle inside temp. | | :: Hydraulic oil | | :: Convertor cooler water temp | 14.TOWER | | Type | :: Lattice tower | | Height | :: 60/73 m | | Surface Treatment | :: Hot dip Galvanized | 15.NACELLE | | Weight, excl.rotor | :: 24000Kgs | 16.CONVERTOR | | Type | :: Full power IGBT converter | | Rated Power | :: 750KW | | Voltage | :: 690V, 3 Phase, AC | | Power Regulation | :: Speed Controlled with Power (Control above rated wind) | | Grid Frequency | :: 50Hz | | Protection Class | :: IP 54 | | Cooling | :: Liquid - Cooled | | LVRT compatible | :: Yes | 17.SCADA | | Web Scada | :: Yes (Optional) |
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