The function of the solar panel is to convert the sun's light energy into electrical energy, then produce direct current and store it in the battery. Solar panels are one of the most important components of solar power generation systems. Their conversion rate and lifespan are important factors that determine the value of solar cells.
Module Design
Designed in accordance with the requirements of the International Electrotechnical Commission IEC: 1215: 1993, 36 or 72 polycrystalline silicon solar cells are used in series to form different types of components 12V and 24V. This component can be used in various household photovoltaic systems, independent photovoltaic power plants and grid-connected photovoltaic power plants.
Raw material characteristics
Cells: use high-efficiency polycrystalline silicon solar chip packaging (more than 14.5%) to ensure sufficient energy production from solar panels.
Glass: Made of tempered low iron suede glass (also known as white glass), with a thickness of 3.2mm and a light transmittance of over 91% in the wavelength range of the solar cell spectrum. response (320-1100 nm). It has high reflectivity for infrared light above 1200 nm. This glass is also resistant to solar ultraviolet rays and light transmission does not decrease.
EVA: A layer of high-quality EVA film with a thickness of 0.78 mm and added with anti-UV agent, antioxidant and curing agent is used as solar cell sealant and as a bonding agent with glass and TPT. It has high light transmittance and anti-aging ability.
TPT: The back cover of the solar cell - the fluoroplastic film is white and reflects lightfrom the sun, thus slightly improving the efficiency of the module. Due to its high infrared emissivity, it can also lower the operating temperature of the module. The components also help improve the efficiency of the components. Of course, this fluoroplastic film first meets the basic requirements of aging resistance, corrosion resistance and airtightness required by solar cell packaging materials.
Frame: The aluminum alloy frame used has high strength and strong resistance to mechanical impact.
Basic parameters
Standard test conditions: (AM1.5) irradiance=1000W/m2, battery temperature=25℃
Power voltage insulation: ≥600V
Chassis ground resistance: ≤10hm
Wind pressure: 2400Pa
Fill factor: 73%
Temperature coefficient of short-circuit current: +0.4 mA /℃
Temperature coefficientOpen circuit voltage: -60 mV/℃
Operating temperature: -40℃～+90℃
Component wiring instructions
Tools required for installation
An M4 slotted screwdriver and a Phillips screwdriver.
Opening the junction box cover
Insert the M4 flathead screwdriver into the mounting hole of the junction box cover according to the markings on the junction box , then gently lift it with one foot. Generally, you can open the cover by lifting the four corners. There is a wiring cover inside the box and when you lift it you can see three wiring terminals.
The wiring of the battery board
There are signs of positive and negative poles next to the left and right terminals, which represent the positive and negative poles of the battery voltage. battery output under working conditions. the positive pole is connected to the positive pole and the negative pole isconnected to the negative pole.
The wiring adopts mechanical compression method. Use an M4 Phillips screwdriver to unscrew the terminal compression screw, peel off the wire and pass it through the G7 cable seal, insert it into the wiring hole, and compress the wire firmly.
After the wires are connected, cover the protective cover, use an M4 Phillips screwdriver to screw the self-tapping screws into the screw holes, fix them, then close the junction box cover to finish the battery board wiring.
Battery Panel Grounding
A grounding screw is installed on the back of the battery panel. Attach the ground wire to the ground screw to ground securely.
Equipment included in grid-connected solar power generation: each solar panel is 200W*30 = 6000W, 6500W grid-connected inverter, cabless and photovoltaic supports, the total investment of the project is approximately: On average according to; at W/14 yuan, 6,000*14 = 84,000 yuan. Annual average daily energy production: 6*3.8=22.8KWH (degree); each 200W solar panel on the site is on average 2 square meters, 30*2=60 square meters. Currently, the state has documented technical support for solar energy grid connection, and there are grid connection grants that you can negotiate with the local electricity supply office.