wind turbine/solar panel on grid working system converter with unload box 1kw-30kw, provide Custom made service, ce approved

FOB Price: US $2,000 - 3,000 / Set Get Latest Price
Min.Order Quantity: 1 Set/Sets
Supply Ability: 200 Set/Sets per Month
Port: qingdao
Payment Terms: T/T,paypal
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Quick Details

Place of Origin:
Shandong China (Mainland)
Brand Name:
Model Number:
Output Power:
Output Type:
AC to Dc converter
Output Frequency:
Wind Controller
Maximum Current:
Rated Voltage:

Packaging & Delivery

Packaging Detail: carton or plywood case
Delivery Detail: 5-10 working days after payment


1.Two sets of control systems
2.LCD display
3.Optional remote communication
4.Certificates: CE & Patent



PWM grid controller with dump load convert AC to DC and supply steady, reliable power to grid tie inverter. 


The controller made Dc voltage steady within the inverter DC input voltage range, exhause the extra power by resistor box.  It has auto brake function.  






Wind turbine rated power


Wind turbine Max. power



Rectifier, control, dc output

Display mode


Display content

Wind turbine voltage, wind turbine current,

wind turbine power, DC output voltage,

output current, output power

PWM constant voltage


3-phase dump load voltage 1of the wind turbine


3-phase dump load voltage 2 of the wind turbine


Time-lapse of the wind turbine 3-phase dump load

12-20 min



PWM dump load fuse


DC output fuse


Work environment temperature


Relative humidity

<90% No condensation

Noise (1m)


Degree of protection


Cooling method

Forced air cooling

*Communication interface (optional)


*Temperature compensation(optional)



Size of the controller

725*570*310 mm

Weight of the controller


Size of the dump load

810*580*950 mm

Weight of the dump load




2. The controller can be custom made according to different wind turbine.  The user need provide wind turbine normal data, grid tie inverter input Dc power range





3. ON GRID CONTROLLER Characteristics


1.The product is manufactured according the JB/T6939.1-2004 industrial standard and GB/T 19115.1-2003 national standard also with users’ technical requirements.


2.Two sets of control systems:PWM constant voltage system and three-phase dump load system.


3.PWM constant voltage control is 120% of the rated power of the wind turbine. In case exceeding of PWM’s capacity, the three-phase dump load will automatically start immediately. After 10-20 minutes, the three-phase dump load will stop and the wind turbine will re-start to resume power supply to ensure the safe running of the overall wind turbine generation system.


4.Under the strong or super-strong wind conditions, the controller can conduct constant voltage output to ensure the inverter safety running.


5.Under the condition of disconnected grid-connected inverter, the controller can conduct constant voltage output and wait for inverter resumption.


6.The three-phase dump load of the controller will automatically start and the inverter will stop grid output when the power grid is off. As soon as the grid power resuming, the controller stops three-phase dump load and the inverter will resume power supply.


7.For the different wind turbine generator type, the controller can be equipped with mechanical yawing, furled empennage, mechanical or hydraulic, pneumatic, electric magnetic and other brake functions.


8.The inside of the controller is equipped with surge arrester. Contain the over voltage into the wind turbine under the bearable voltage of the equipment or system. On another way, to conduct the strong lightening current into the earth directly to avoid any damage of equipment.


9.The below LED status indication can be found on the front panel: indications of wind turbine, dump load, three-phase dump load delay time, under pressure, grid power and DC output voltage.


10.Voltmeter indication: Indicate the controller DC output voltage.


11.The controller is equipped with emergency stop switch; in case of emergency, press down the emergency stop button in the front panel to cut off all power supply of the controller and the wind turbine will immediately carry out three-phase dump load.


12.The controller is equipped with manual three-phase dump load switch. To using this switch, the wind turbine will carry out three-phase dump load forcibly.



Product components before the computer, all through inspection, ensure that computer components does not exist any quality problem.







Before the products leave the factory, the safety inspection to ensure that the user use safety.


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Jinan Deming Power Equipment Co., Ltd. is a high-tech enterprise specializing in the research, development, marketing and sales of renewable energy products especially for solar and wind power.

Our main products include wind turbine off grid controllers, wind turbine on grid controllers, solar energy controllers, wind-solar hybrid controllers, wind-solar hybrid street lamp controllers, inverters, etc. During the development of more than 20 years, in accordance with the characteristics of ... View detail

Basic Information

Product/Service (We Sell): wind turbine controller,solar charge controller,solar power inverter,wind solar hybrid controller,on grid inverter  
Brands: DM,QN  
Number of Employees: 11 - 50 People  

Trade & Market

Main Markets: South Asia
Southern Europe
Northern Europe
Central America
Western Europe
Eastern Asia
Mid East
Southeast Asia
Eastern Europe
South America
North America
Total Annual Sales Volume: US$50 Million - US$100 Million  
Export Percentage: 71% - 80%  

Factory Information

Factory Size (Sq.meters): 1,000-3,000 square meters  
Factory Location: Floor 1, Building 2 The center of Cambridge development of Shandong Power  
Number of Production Lines: 3  
Number of R&D Staff: 5 - 10 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

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China (Mainland) | Manufacturer, Trading Company | Contact Details
Experience: Established 2004

Communicate with Supplier:

Mr. jinguo wang
Mr. jinguo wang:
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