.
Wind Turbine
1)、Produced
by license from Germany Repower, the product past GL( Germany Lioyd)
certification.
2)、The
wind turbine is mature in technology and reliable in performance, with
over 80% localization. The main components are turned out domestically
with easy maintenance and short-term delivery.
3)、Cryogenic
material and frozen proof design are suitable for cold
northern areas ( extreme low operation temperature is -30°C)
2.
Components
1)The
tower is specially designed for shock-absorption and noise reduction.
2)Optimized
Blades with adjustable rotor heights and diameters are suitable for wind
farms of various types.
3)Use
Mita control system for reliable performance and better anti-interference
capability.
4)Use
soft braking technology for braking system; reduce the impact loads of
drive train to the utmost extents. The advanced and reliable power fail
protection technology makes the wind turbines automatically and smoothly
shutdown when accidents occur.
5)Oil
filled electrical motor and leak proof seal technology in neat-structured
hydraulic system to ensure high efficiently and
precisely operation in environment of -40C—+
80°C
6)Good
damping makes yawing more stable.
3.
After-service
1)Free
periodic update for control system, free share for tech. innovation;
2)Easy
and quick maintenance reduce owner’s human resource cost
3)Consumables
with wide applicability and easy procurement for the convenience of
owners.
Model
|
WD49(50)
750kW
|
|
Rated
power
|
750kW
|
|
Cut-in
wind speed
|
3.5m
/s
|
|
Rated
wind speed
|
14m
/s
|
|
Cut-out
Wind Speed
|
25m
/s
|
|
Extreme
wind speed of survival
|
60m
/s
|
|
Operating
temperature range
|
-20℃
-
-45℃
(normal
temperature )
-30℃
-
-45℃
(low
temperature
|
|
|
|
|
Rotor
|
|
|
Diameter
|
49m
/
50m
|
|
Swept
area
|
1886m2
/
1963m2
|
|
Number
of blades
|
3
|
|
Blade
Material
|
(GRP)
|
Rotor
Speed
|
22.5rpm/21.7rpm
|
|
|
|
|
Gearbox
|
|
|
Type
|
(3
stage gearbox with planetary gear)
|
Rransmission
ratio
|
67.4/70.04
|
|
|
|
|
Generator
|
|
|
Type
|
(Single
Winding induction Generator)
|
Rated
power
|
750kW
|
|
Rated
Voltage
|
690V
|
|
Grid
Frequency
|
50(+1.5/-2.5)Hz
|
|
Rated
Speed
|
1,520rpm
|
|
|
|
|
Brake
|
|
|
Aerodynamic
brake
|
blade
tip brakes
|
Mechanical
brake
|
HSS
mechanical disk brake
|
Safety
protection
|
fail
safe
|
|
|
|
Yawing
system
|
|
|
Type
|
Motor
drive
|
Control
|
Active
Yawing
|
Yaw
brake
|
Hydraulic
calliper brake
|
|
|
|
Tower
|
|
|
Type
|
Conical
tubular steel tower
|
Hub
height
|
50m
,
65m
|
|
|
|
|
Control
system
|
|
|
Main
controller
|
MITA
|
|
Soft
cut-in system
|
Thyristor
|
Monitor
|
Modem/Internet
|
|
|
|
Lightning
System
|
Blade
tip lightning receptors
|
Reliable
surge-protect device
|
Over-voltage
protection for electric components
|
|