Product Details

3 phase permanent magnet generator 20kw alternator

Product Features

20kw permanent magnet generator for wind turbine/wind generator  

3 phase permanent magnet generator 20kw alternator

Product Description

 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

3 phase permanent magnet generator 20kw alternator

 

2.  permanent magnet generator technical data

 

20kw generator is 3 phase Ac permanent magnet directly drive generator. 
 
The generator can be used in horizontal axis wind turbine, hydro turbine.  When the generator used for the wind turbine or hydro turbine, normally the system as below:
 
generator output 3 phase AC power + Controller convert AC to Dc and supply power to battery group+ inverter;
 
generator output 3 phase AC power  + controller convert AC to Dc and supply power to grid tie inverter + utility grid;
 
The generator is low frequency. It can not directly output 50hz or 60hz. 
 
20kw pma:
 

 

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. 

 
The magnet material adopt Nd-Fe-B. Prefabricated tangential magnetic circuit rotor; High magnetic flux density, small cubage, good manufacturing process and high performance.  Adopt SKF, NSK bearing.
 

 

The price is FOB qingdao price. For sample order, we will give you this dealer price to encourage long time cooperation. 

 

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):

3 phase permanent magnet generator 20kw alternator

 

  

8. Application VAWT/HAWT 

 

PMA and wind turbine assembly 500w-5kw

 3 phase permanent magnet generator 20kw alternator

 

pma and wind turbine 10kw 20kw 25kw 30kw assembly

  3 phase permanent magnet generator 20kw alternator

 

5kw pma for horizontal axis wind turbine

 3 phase permanent magnet generator 20kw alternator

10kw pma for horizontal axis wind turbine

 

3 phase permanent magnet generator 20kw alternator

VAWT with permanent magnet generator 

 3 phase permanent magnet generator 20kw alternator

 

2kw pma, net weight is 23.5kgs. Gross weight is 28kgs per set.

3 phase permanent magnet generator 20kw alternator

 3kw pma

3 phase permanent magnet generator 20kw alternator

1kw pma, net weight is 17.5kgs. Gross weight is 23kgs.  

 3 phase permanent magnet generator 20kw alternator

 

50kw pma for wind turbine

 

3 phase permanent magnet generator 20kw alternator

Packaging & Shipping

 plywood case

 

The sample can be delivery via express.

 

Bulk order can be Delivery by sea. FOB/C&F, CIF

 3 phase permanent magnet generator 20kw alternator

  

Our Services

 

 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; 

Company Information

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.

 3 phase permanent magnet generator 20kw alternator

Certification, truck test

3 phase permanent magnet generator 20kw alternator 

Workshop, office, stock

FAQ

 

 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.     

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