Wuhan Wellsee new Energy Industry Co.,Ltd launched 3phase charging & discharging controller to the market last year. The controller applies to PV power system,connected with solar panel,battery bank and loads. Our 3pahse controller difference from other controllers since of its advanced three-stage charging function,whch make the battery charged safely and fully.
Wuhan Wellsee new Energy Industry Co.,Ltd is invested by Hubei Bluelight Science & Technology Development Co.,Ltd. We specialize in developping and producing solar cahrging & discharging controllers, solar lamp controllers,wind hybrid controllers,small wind generators,wind solar hybrid power system,solar inverters,car power inverters and so on. Among them, our 3phase cahrging & discharging solar controlles apply to all solar panels and lead-acid battery. The microprocessor has pluse width modulating charging function,whch can offer the fastest and best electric circuit and voltage from PV panels.
The so-called 3phase controller chage the battery as following three stages：Charging the battery with constant circuit with DC from solar panels till the voltage goes up to 13.7V (this voltage calue can be adjusted);Charging battery with constant voltage under the cntrol of PWM so as to keep the voltage of 13.7V till the charging trickle circuit is less than constant cirxuit;Charging the battery with trickle circuit till the voltage goes up to 14.2V and the charging process is over.
If the charging voltage is higher than lowest protect voltage,the system will go to floating charging in order to protect the battery from over charging. Or the system will choose three-stage charging.
The battery will be charged through constant electric circuit at the begining and in the end of the charging process, and through constant voltage at the midddle of the charging process. When the electric circuit is cut down to the predetermined value, the system will switch to the third stagefrom the second stage to protect the battery and make the battery charged fully.
Our Wellsee 3phase charging & discharging solar controller has the function of overload proteciton, over charge protection, reversed discharging protection,reversed polarity connection protection, thunder protection and under voltage protection.Besides, the controller has some other function which is not owned by general controller, that is the charging style of three stage:constant electric circuit--constant volatge-- trickle circuit folating charging. In addition, the controller has CPU regulator,LED display,and can recognize the input voltage automatically,applies to many kinds of batteries.
Wellsee solar controller is your most prior choice !