20kw permanent magnet generator for wind turbine/wind generator
1.Product Main Features
- Gearless, direct drive, low RPM generator
- Low start up speed due to low cogging and resistive torque design
- High standard, quality components for use in harsh and extreme environments for wind turbines
- High efficiency and Low mechanical resistance energy loss
- Excellent heat dissipation due to the Aluminium alloy outer frame and special internal structure
- High strength from the specially desy selecign structure and fully heat treatment Aluminium
- Generator is designed using speciallted material and treated to resist corrosion and oxidation
- Designed for reliable and long operational lifetime under long-term full output
- Designed for 20-years operation life
- Patent protected design
2. permanent magnet generator technical data
permanent magnet, 3 phase AC generator.
Start up torque: 12N.m
Rated rotation speed: 150rpm
Rated output power: 20kw
Max output power: 30kw
Iron cast shell, after painting, then coated.
Working voltage: 240V-500v. or special request.
Outside size: 1065*470*470mm
Net weight: 350kgs
Generator with braking part weight: 460kgs
22 poles
star connection
nodular cast iron cast shell, hot aluminum spray then painted
US$2800.00/SET.
500w-2.5kw generator use Aluminum Casting generator shell.
3kw-50kw shell is iron cast. With Aluminum spray treatment.
3 phase Ac permanent magnet generator
Working voltage optional
Provide stator, rotor
Material: Nd-Fe-B38 permanent magnet
light weight
lower start up torque
compact structure
SKF/NSK bearing
high efficiency
star connection
lower rated rotation speed
12v, 24v, 36v, 48v, 56v, 96v, 120v, 240v,360v, 500v... Working voltage can be special request. We can revise the winding accordingly.
Model |
Rated power |
Max Power |
RPM (r/min) |
Start torque (N/m) |
300W |
300W |
500W |
600 |
0.5 |
500W |
500W |
750W |
550 |
0.8 |
1KW |
1000W |
1500W |
470 |
1.5 |
2KW |
2000W |
3000W |
430 |
2 |
3KW |
3000W |
4500W |
300 |
3 |
5KW |
5000W |
7500W |
260 |
4.5 |
10KW |
10kw |
15kw |
200 |
7.5 |
20KW |
20kw |
30kw |
200 |
10 |
Model |
Rated power |
Max Power |
RPM (r/min) |
Start torque (N/m) |
2KW |
2000w |
3000w |
430 |
2 |
3KW |
3000w |
4500w |
300 |
3 |
5KW |
5000w |
7500w |
260 |
4.5 |
10KW |
10kw |
15kw |
200 |
7.5 |
30KW |
30KW |
35KW |
200 |
10 |
50KW |
50KW |
60KW |
80 |
100 |
60KW |
60KW |
70KW |
60 |
120 |
3. Before delivery, we provide plate form test record. The test item as below:
Start up torque
Rated torque
Rated rotation speed
Rated current
Rated voltage
Rated power
Isolation test
3 phase balance test
4. CE, ISO,IEC approved
5. Working system
Off grid working system:
pma +PWM off grid controller with dump load+battey group + pure sine wave inverter
wind solar hybrid system (on grid/off grid):
8. Application VAWT/HAWT
PMA and wind turbine assembly 500w-5kw
pma and wind turbine 10kw 20kw 25kw 30kw assembly
5kw pma for horizontal axis wind turbine
10kw pma for horizontal axis wind turbine
VAWT with permanent magnet generator
2kw pma, net weight is 23.5kgs. Gross weight is 28kgs per set.
3kw pma
1kw pma, net weight is 17.5kgs. Gross weight is 23kgs.
50kw pma for wind turbine
plywood case
The sample can be delivery via express.
Bulk order can be Delivery by sea. FOB/C&F, CIF
Provide professional wind turbine technical support;
Provide on/off grid system design, wind solar hybrid system design service.
Completely system provider and designer;
Wind turbine type, model, capacity selection professional support;
Tower design, foundation drawing support;
Provide Pma, hub, flange drawing;
Provide OEM service, customized service.
Support paypal /west union payment, TT payment;
We started to manufacture wind turbine in 1994. In 2004, there are only 4 small wind turbine manufactures in China. We keep improving and develop in the small wind turbine field. We are not the leading small wind turbine exporter, but we are the leading wind turbine manufacture and designer now.
We manufacture 300w-30kw fixed pitch wind turbine;
2kw, 3kw, 5kw, 10kw, 20kw, 30kw, 50kw, 60kw pitch controlled wind turbine;
1kw, 2kw, 3kw, 5kw Vertical axis wind turbine;
On grid system/off grid system, wind solar hybrid system; Water heating system;
For more details, pls contact with us via e-mail.
Certification, truck test
Workshop, office, stock
1. Wind turbine model selection
It depends your local annual average wind speed, daily/monthly home power consumption.
Low average wind speed place, select larger blades rotor, higher rated working voltage;
Rich wind place select speed limited wind turbine: variable pitch wind turbine, stall out vertical axis wind turbine.
The safety and steady working system is the first choice.
2. Wind turbine tower selection
Now we have guy wire tower, stand alone tower, tilting up tower, hydraulic tower.
Guy wire tower cost is lower, easy to delivery. But the installation area is larger;
Tilting up tower is for 500w-5kw wind turbine. Easy installation, small installation area. But the delivery cost is higher.
Hydraulic tower: It is used for no crane place. Easy installation and put down. The cost is higher.
Stand alone tower for the installation place with crane.
The tower height: Make sure blades rotor is higher than wind turbine surrounding barrier height.
3. Working system selection
On grid system: wind turbine with tower + PWM controller with dump load + grid tie inverter;
Off grid system: wind turbine with tower + PWM charge controller with dump load + battery group + inverter;
Wind solar hybrid on/off grid system: Safety and reliable than only wind or solar system.
Wind turbine water heating system: work in rich wind place. Average wind speed higher than 8m/s.
For more question, pls contact with us directly. We will give you a professional response.
Why select us:
We are the wind turbine designer and manufacture. We know our wind turbine advantage and disadvantage in different wind condition.
I have more than 10 years wind turbine sales experience. We provide the right wind turbine and working system to different user according to their different situation and request.
In 2004, there are 4 small wind turbine manufacture. Now there are so much trading company and manufacture, we know Chinese small wind turbine market well and can provide user more useful advise.