1500KW

Basic Design Datao:

 

Model

WD70/ 1500kW

WD77/ 1500kW

Rated power

1500kW

1500kW

Power factor

-0.95+0.95

 -0.95+0.95

Cut-in wind speed

3.5m/s

3.5m/s

Rated wind speed

14m/s

13m/s

Cut-out wind speed

25m/s

20m/s

Maximal wind speed of survival

59.5m/s

52.5m/s

Operating temperature range

-20--45℃(normaltemperature)
-30
--45℃(lowtemperature)

-20--45℃(normaltemperature
-30
--45℃(low temperature

 

 

 

Rotor

 

 

Diameter

70m

77m

Swept area

3847m2

4654 m2

Number of blades

3

3

Blade material

GRP

Rotor speed

10.8rpm-19.1rpm

9.9rpm-17.2rpm

 

 

 

Gearbox

Type

1 planetary,2 parallel

Transmission  ratio

94

104

 

 

 

Generator

Type

doubly-fed asynchronous generator  

Rated power

1500kW

1500kW

Rated voltage

690V

 

Grid frequency

50Hz

50Hz

Rated speed

1,800rpm

1,800rpm

 

Conversion system

Capacity

480/770 KVA

480/770 KVA

Output frequency

50Hz

50Hz

 

Brake

Main brake system

Individual blade pitch brake

Mechanical brake

HSS mechanical disk brake

Safety protection

fail safe

 

 

 

Yawing system

Type

Motor drive

Control

Active Yawing

Yaw brake

Hydraulic caliper brake

 

 

 

Tower

Type

Conical tubular steel tower

Hub height

65m

65m

 

 

 

Control system

Main controller

MITA

MITA

Monitor

Modem/Internet

 

 

 

Lightning system

Blade tip lightning receptors

Reliable surge-protect device

Over-voltage protection for electric components