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          What do you need to configure solar street lights
          Time:2020-04-07  Traffic:

          The system control of the solar street lamp is independent. At fixed time, it is necessary to pay attention to the fixed time of the solar street lamp. The cement pole is used to fix the lamp post. In the cement pier, there is a need for a bolt pile to fix the lamp post The size requirement depends on the height and weight of the pole. New rural solar street lights use solar radiation as energy. Whether the sunlight shining on the photovoltaic cell components is sufficient will directly affect the lighting effect of the lamps. When choosing the installation location of the lamps, the solar battery modules can shine sunlight at any time period without leaves And other obstructions.


          What do you need to configure solar street lights


          1: Calculate the power consumption required by this configuration: 30W LED light source, solar street lamp, make the courtyard lamp V system normally, from which you can get the current size of 30W, 30W / 12V = 2.5A current, now every night The power consumption is 2.5A * 7H = 17.5AH. Since the solar street lamp battery has overshoot and over discharge garden lights, the normal solar street lamp battery has a charging depth of 9 garden lights and a discharge depth of 70%, which means that the 70AH configuration accounts for 70% of the total configuration. The true capacity of the battery = 70AH / 0.7 = 100AH;


          2: According to the power of the light source and the location of the project, and the working time of the load every day, determine the size of the photovoltaic module power required. There are many factors influencing the determination of the power of photovoltaic modules. Among them, the average annual sunshine hours of the project location is more difficult to determine data, even if the location at the same latitude is different due to different terrain. The actual power consumption of the light source and the state of daily work can be calculated more accurately the daily power consumption ampere hours, combined with the annual average number of sunshine and the annual minimum number of sunshine to determine the power of the photovoltaic module.


          3: Determine the capacity of the battery according to the size of the photovoltaic module previously determined, the working condition of the known load, and the number of rainy days that the customer needs to maintain; at present, most of the domestic street light batteries are colloidal lead-acid batteries, of the type The energy-storage valve-controlled maintenance-free type has a normal life span of about 4 to 5 years and can withstand a minimum ambient temperature of about -40 °.


          4: The configuration of the solar controller, the discharge current of the 30W LED is 2.5A, and the charging current is 92W / 17.5V = 5.2A. When selecting the controller, you can choose the power generation current of the 3A controller of Kaiyuan Lighting Group. At 5A, the charging current is 10A, which is more consistent. If you configure a 10A controller, it does not need to be that large.

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