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Technical Consultation

1.What is solar pumping system
The solar pumping system is composed of solar pumping inverter, 3 phase AC pump, and solar array. The solar array is composed of many solar cells panels in series and in parallel, and absorbs irradiation from Sunlight, and converts into electrical energy (DC). Inverter controls and regulates pumping operation system and converts DC voltage from PV modules to AC to drive the AC pump, with the function of MPPT and it regulates the output frequency according to irradiation in actual time to achieve the maximum power. The AC pump driven by a 3 phase induction motor, draws water from well or rivers and lakes, then water reserved on tank/ponds for irrigation systems or other applications. Based on the requirements and installation conditions, different types of pumps will be required.
The solar pumping system is widely used for sea water desalination system, desert controlling, daily life water supplying, agricultural irrigation, forest irrigation, waterscape, and water treatment project. The Solartech solar pumping system is dispensed with battery and that enhance the reliability of the system and reduce the bill invest. 


2.I need a solar pumping system, what info I should offer for the suitable one?
Lift、Daily water requirement、installation site、the average sunshine hours of the installation site, usage of water etc.  
Please download the <<solar pumping system questionnaire>> at the online download center, and fill it with the right info and send back to us for the solution.


3.Why cubic meters/day not cubic meters/hour for measuring the solar pumping system.
The Solartech solar pumping dedicated inverter is adopted to achieve MPPT (Maximum Power Point Tracking) to regulate the speed of the pump, and the water output changes while the sunshine radiation changes, so, cubic meters/day is the only standard measurement of the water output of a solar pumping system.  


4. How do I select the suitable Model of solar pumping system?
Please refer to the Model Selecting Graphic in this website.


5.I am government purchaser, what info I should offer if I wish to buy solar pumping system for agricultural irrigation
Please download 《Questionnaire of country agricultural irrigating project》and fill it with the right information and send back to us for the project solution.


6.How should I maintain the solar pumping inverter
Potential problem will happen during the operating of the inverter due to the temperature, humidity, dust, and vibration of the inside ambient of the inverter, for the long duration and stable running, the inverter should be examined once in a year.  
Maintenance requirements
1)The examination should be carried out by a Professional person. And cut down the circuit before the examination  
2)Make sure no metal scrape is left inside the inverter, orelse it would be damaged. 
3)Do not do any pressure resisting test as the electric insulation of the inverter has been tested before delivery. 
4)When there is a necessary to do the insulation testing of the inverter, connect all the input and output plug in short circuit, and it is prohibited to do the same to single plug. And please use a Meg-ohmmeter. 
5)Meg-ohmmeter is prohibited to use for controlling circuit. 
6)Disconnect the inverter and the motor when testing the insulation of the motor. 
(If you already purchased our products, please refer to the manual for solution to problem happened or contact us directly.)


7.How to preserve the inverter?
Please be advised with below notes if the inverter shall be preserved for along time. 
1)Keep it away from high temperature, humidity, vibration or ambient with metal ash, and keep in good ventilation. 
2)when not used for long time, the characteristic of filtering capacitance will get to be low, and power it once in every two years to revive the characteristic  and check its function. And increase the DC voltage gradually when the power is on, and keep it for not less than 5 hours. 


8.How long will the photovoltaic system serve?
The solar PV module is with 25 years of using life, and the output power will get lower as the time past.


9.How if I want to be a distributor?
Please contact our marketing center.