The function of the solar panel is to convert the light energy of the sun into electrical energy and then output the direct current and store it in the battery. Solar panels are one of the most important components in solar power systems. Their conversion rate and service life are important factors that determine whether solar cells have value in use.
Component design
Designed according to the International Electrotechnical Commission IEC:1215:1993 standard, 36 or 72 polysilicon solar cells are used in series to form 12V and 24V various types of components. The module can be used for various household photovoltaic systems, independent photovoltaic power plants and grid-connected photovoltaic power plants.
Raw material characteristics
Cell: Uses a high-efficiency (14.5% or more) polycrystalline silicon solar wafer package to ensure sufficient solar panel power.
Glass: Low-iron tempered suede glass (also known as white glass) with a thickness of 3.2 mm, a transmittance of over 91% in the wavelength range of the solar cell's spectral response (320-1100 nm), and infrared light greater than 1200 nm Has a higher reflectivity. The glass is also resistant to solar ultraviolet radiation and the light transmittance does not decrease.
EVA: A high-quality EVA film with a thickness of 0.78 mm with an anti-ultraviolet agent, an antioxidant, and a curing agent is used as a sealing agent for a solar cell and a connecting agent with glass and TPT. Has a high light transmittance and anti-aging ability.
TPT: The back cover of the solar cell - the fluoroplastic film is white and reflects sunlight, so the efficiency of the module is slightly improved, and because of its high infrared emissivity, it can also reduce the operating temperature of the module. It helps to improve the efficiency of the components. Of course, this fluoroplastic film first has the basic requirements of anti-aging, anti-corrosion, and air-tightness required for solar cell encapsulants.
Frame: The aluminum alloy frame used has high strength and is resistant to mechanical impact.
Basic parameters
Standard Test Conditions: (AM1.5) Irradiance = 1000W/m2, Battery Temperature = 25°C
Insulation voltage: ≥600V
Frame grounding resistance: ≤10hm
Wind pressure: 2400Pa
Fill factor: 73%
Short-circuit current temperature coefficient: +0.4mA/°C
Open circuit voltage temperature coefficient: -60mV/°C
Working temperature: -40°C～+90°C
Component wiring instructions
Required tools for installation
M4 screwdriver, Phillips screwdriver one each.
Junction box cover open
Insert the M4 slotted screwdriver into the mounting hole on the cover in accordance with the marking on the terminal box. Gently lift one foot of the M4 slotted screwdriver so that the top corners are lifted to open the cover. There is a wiring cover in the box, and when it is lifted, three terminals can be seen.
Battery board wiring
There are positive and negative pole marks beside the two left and right terminals, which represent the positive and negative poles of the output voltage of the battery in the working state. According to the power demand, the positive pole is connected to the positive pole and the negative pole is connected to the negative pole.
The wiring is mechanically pressed. Use a M4 Phillips screwdriver to unscrew the compression screw on the terminal post. Peel the wire through the G7 cable gland and insert it into the wire hole to tighten the wire.
After the wires are connected, cover the protective cover, use a M4 Phillips screwdriver to screw the self-tapping screws into the screw holes, and fix the cover of the terminal box to complete the wiring of the battery board.
Battery board grounding
A grounding screw is installed on the back of the battery board, and the grounding wire can be safely grounded by being fixed on the grounding screw.
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