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Operating Data

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Rotor diameter

 60 m 64 m 64 m 66 m 66 m

Hub height

 65 m (variable as per requirement)

Installed elec. output

 1250 kW

Cut-in wind speed

 3 m/s

Rated wind speed

 14 m/s 12 m/s 12 m/s 12 m/s 12 m/s

Cut-out wind speed

 25 m/s

Survival wind speed

 67 m/s
           
   
1.25 MW
System Design

Technical Description
Salient Features

Technical Data
Power Curve
     
 
Rotor

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Blade

 3 bladed horizontal axis

Swept area

 2828 m² 3217 m² 3421 m² 3421 m² 3421 m²

Rotational speed

13.9 / 20.8 rpm

Regulation

 Pitch-regulated
 
     
     
 
Generator

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Type

 Asynchronous 4/6 poles

Rated output

 250 / 1250 kW

Rotational speed

 1006/1506 rpm 1006/1506 rpm 1208/1506 rpm 1006/1506 rpm 1208/1506 rpm

Frequency

 50 Hz 50 Hz 60 Hz 50 Hz 60 Hz
 
     
     
 
Gearbox

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Type

 Integrated (1 planetary & 2 helical)

Ratio

 74.917 : 1 74.917 : 1 89.229 : 1 74.917 : 1 89.229 : 1
 
     
     
 
Yaw System

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Drive

 4 electrically driven planetary gearbox

Bearings

 Polyamide slide bearings
 
     
     
 
Braking System

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Aerodynamic brake

 3 independent systems with blade pitching

Mechanical brake

 Hydraulic fail-safe disc brake system
 
     
     
 
Control Unit

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Type

Programmable microprocessor-based; high speed data communication, active multilevel security, sophisticated operating software, advance data collection remote monitoring & control option, UPS back up, Real time operation indication
 
     
     
 
Tower

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Type

 Lattice / Tubular, Hot Dip Galvanized, Epoxy / PU coated
 
     
     
 
Erection

S.60/1250

S.64/1250
(50 Hz)

S.64/1250
(60 Hz)

S.66/1250
(50 Hz)

S.66/1250
(60 Hz)

Type

 With crane