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The operating principle of solar street lamp

During the day time, in the light conditions, the solar cell components can produce a certain electromotive force, and through the formation of the component series-parallel of solar cell matrix to meet the demands of input voltage for square voltage system. And through the charge and discharge controller to recharge batteries, which will be converted from light energy for store up. In the evening, battery for the inverter to provide input power through the role of the direct current into alternating current, and transmit to the distribution cabinets which with the role of switching power supply. The discharge of batteries which controlled by a controller is to ensure the normal use of batteries. PV power plant system should also have the devices for limited load protection and lightning protection, which is to protect the equipment of the system from lightning overload operation and to maintain the safe use of system equipment.