ENERCON

ÐÕÑÊÁË Á.Å.

iW

( interWind )

ÐÕÑÊÁË Á.Å.

iW

( interWind )

E40-500

V47-660 kW

NM 750/48

OA500

OA600

       Rotor

Diameter:

40 m

47 m

48.2 m

39.83 m

40.58 m

Area swept:

1275 m2

1735 m2

1824 m2

1246 m2

1293 m2

Speed of revolution:

variable, 18 - 38 rpm

28.5 rpm

22/14 rpm

Variable, OPSC ® (Opti Power Speed Control) ®
0 –29 rpm

Variable, OPSC ® (Opti Power Speed Control) ® ,
0 –29 rpm

Number of   blades:

3

3

3

3

3

Length of blades:

19 m

  19m

19m

Blade material:

fiberglass (reinforced epoxy) with integral lightning protection

LM 19.1 Type (Denmark) stall type, with integral lightning protection

LM 19.1 Type (Denmark) stall type, with integral lightning protection

Tip speed:

38 - 80 m/s

Type:

upwind rotor with active pitch control

Upwind rotor 

Upwind Rotor

Upwind rotor

Upwind rotor

       Tower

Type:

Conical, steel, painted

Steel, painted Quality St52-3N

Steel, painted Quality St52-3N

Hub height(approx,)

44m

45m

45m

38 m

38 m

    Generator

Type:

direct-driven ENERCON ring generator (with drive train)

Asynchronous with OptiSlip^®

Asynchronous, 4/6 pole

3 phase, Asynchronous, 4 pole

3 phase, Asynchronous, 4 pole

Name plate rating:

500 kW

660 kW

750/200 kW

573 kW (ambient temp. 40°C, 29rpm), 530kW continuous (ambient temp. 47°C, 29rpm, or 40°C, 25rpm)

670 kW (ambient temp. 40°C, 29rpm), 600kW continuous (ambient temp. 48°C, 29rpm, or 40°C, 24rpm)

Nominal Voltage:

690 V

690 V

690 V

690 V

Nominal frequence:

50 Hz

50 Hz

50 Hz

50 Hz

50 Hz

Hub:

Rigid

Cooling:

Liquid-cooled with pump

Self cooled

Self cooled

Operational data

Nominal output:

500 kW

660 kW

750 kW

500 kW

600 kW

Cut-in wind speed:

2.5 m/s

4 m/s

4 m/s

4 m/s

4 m/s

Cut-out wind speed:

25 m/s

25 m/s

None

None

Nominal wind speed:

12 m/s

15 m/s

16 m/s

14.5 m/s

14.5 m/s

Power regulation:

Variable Speed + Pitch

Pitch/OptiSlip^®

Stall

Stall + OPSC © + ALPC©
ALPC©=Active Limit Power Control

Stall + OPSC © + ALPC©
ALPC©=Active Limit Power Control

    Gearbox

Type:

Planet/parallel axles

Planetary - parallel axle

Full third base Planetary heavy type

Full third base Planetary heavy type

Ratio:

1:68.2

1:52.18

1:52.18

Main shaft:

Forged shaft and flange

Main bearing:

double-row tapered roller bearings

Spherical roller bearing

2 elastically couplings, one on the low-speed shaft and another on the high-speed shaft to the generator

2 elastically couplings, one on the low-speed shaft and another on the high-speed shaft to the generator

Cooling:

Liquid-cooled with pump

2 independent oil flow/cooling circuits 

2 independent oil flow/cooling circuits 

     Control

Braking system:

3 independent pitch-control systems with emergency supply

rotor brake

rotor lock for service and maintenance

Air brake: Feathered.

Blade tip air brake: Hydraulic, fail-safe

Disk brake: Hydraulic, fail-safe

·  2 Disk brakes. 2 independent hydraulic circuits (low-speed & high-speed brake, fail-safe emergency type)

·  Normal braking to zero speed via inverter current (public network intact, no emergency!)

·  Emergency braking via DC current powered from inverter (Emergency but network intact)

·  Over-torque limiting system (in case of generator short-circuit).

·  2 Disk brakes. 2 independent hydraulic circuits (low-speed & high-speed brake, fail-safe emergency type)

·  Normal braking to zero speed via inverter current (public network intact, no emergency!)

·  Emergency braking via DC current powered from inverter (Emergency but network intact)

·  Over-torque limiting system (in case of generator short-circuit).

Yaw control:

active through adjustment gears, friction damping

Type: Ball bearing

Yaw Brake: 3 Friction brake/motor brake

Drive mechanism: 4 electrical planetary gears

·   Ball bearing

·   2 friction fail-safe type electrical motor brakes

·   Drive mechanism: Two AC gear motors driven via a 4-quadrant AC converter-inverter system.

·  Speed and continuous soft position control.

·  Gearbox, total 6416.6:1

·  Ball bearing

· 2 friction fail-safe type electrical motor brakes

·   Drive mechanism: Two AC gear motors driven via a 4-quadrant AC converter-inverter system.

·  Speed and continuous soft position control.

·  Gearbox, total 6416.6:1

Type:

Microprocessor - based control of all turbine functions with the option of remote monitoring.
OptiSlip^® output regulation and OptiTip^® pitch regulation of the blades

Type: Computer controlling

Computer controlling: Soft by thyristors

Capacitor bank:

No-load compensated

Remote control: By modem

·  PLC based control of all turbine functions with master-slave units, remote controlling and monitoring by modem or remote network.

·  OPSC® + ALPC© of the Electrical power.

·  Continuous dynamic control of PF (-0.8 to +0.8) by pulsed, IGBT type active line converter. Ability of producing additionally reactive power until nominal input current.

·  PLC based control of all turbine functions with master-slave units, remote controlling and monitoring by modem or remote network.

·  OPSC® + ALPC© of the Electrical power.

·  Continuous dynamic control of PF (-0.8 to +0.8) by pulsed, IGBT type active line converter. Ability of producing additionally reactive power until nominal input current.

     Sensors

RPM sensors:

Rotor, generator, yaw system

Pulse generator on generator shaft

Pulse generator on generator shaft

Temperature sensors:

Gear, generator, controller

 Gear, generator, controller,hydraulic, ambient,bearings, drive

 Gear, generator, controller,hydraulic, ambient,bearings, drive 

Thermal sensors/warning:

Main switch, engine protection

   Gear, generator, controller,hydraulic, ambient,bearings, drive

 Gear, generator, controller,hydraulic, ambient,bearings, drive 

Vibration sensor:

Nacelle, rotor

  Nacelle

Nacelle

Meteorology:

Anemometer, wind vanes, thermometer

  Anemometer, wind vane

    Anemometer, wind vane

Hydraulic systems:

Pressure sensitive switches, pressure transducer

Pressure sensitive switches, pressure transducer 

Pressure sensitive switches, pressure transducer 

Lightning protection

Type:

According to standard IEC 1024

Lightning protection of all mechanical – electrical – electronic systems, from blade tips to base of tower.

Lightning protection of all mechanical – electrical – electronic systems, from blade tips to base of tower.

Blades:

Receptor in the blade tips

Nacelle: