PWS 900i	PWS 900iL	PWS1250i	PWS1250iL	PWS1800i	PWS1800iL
General
Power Output	900 kW	900kW	1250 kW	1250kW	1800kW	1800kW
Cut in Wind Speed	3m/s.	2.1 m/s	3m/s.	2.1 m/s	3m/s.	2.1 m/s
Output in Wind Speed	25m/s.	25m/s.	25m/s.	25m/s.	25m/s.	25m/s.
Rotor
Diameter	58 Mt.	68 mts.	68 mts	83.64 mts	83.64 mts	100 mts
Hub Height	71mts.	74 mts	74 mts	80 mts	80 mts	100 mts
Tower	Tubular	Tubular	Tubular	Tubular	Tubular	Tubular
Cone Angle	2°		2°		2°
Tilt Angle	5°		5°		5°
Power Control	Individual blade pitch		Individual blade pitch		Individual blade pitch
Pitch Drive	A.C.Servo Drive		A.C.Servo Drive		A.C.Servo Drive
Backup system	Battery		Battery		Battery

Drive Train
Gear Box	Combined Plain and Helical 3 stage from Siemens
Main Bearing	Schaeffler KG
Generators	Asynchronous Generators from SIEMENS
Operating Speed	500 to 1600 RPM
Converter	IGBT based Full Scale Converter to suit 50Hz/60Hz from General Electrical
Control
Control System	Beckhoff, Germany
Speed Control	A.C. Servo Driven Pitch System
Rotor Brake	Independent triple Pitch System (Aerodynamic)
2nd Brake System	Hydraulic Disc Brake on High Speed Shaft
Yaw Control	Gear Motors with Brake
Breaking System	Hydraulic Caliper Brakes