High quality factory Poly-crystalline Solar Panel 3W to India Manufacturer

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Poly-crystalline Solar Panel 3W

Technical parameter

Maximum Power(W)                        3W

Optimum Power Voltage(Vmp)        9V

Optimum Operating Current(Imp)    0.34A

Open Circuit Voltage(Voc)               10.8V

Short Circuit Current(Isc)                 0.37A

Mechanical Characteristics

Cell Type                              Polycrystalline

No of Cell                                         18 (2x9pcs)

Dimensions                                     145x245x18mm

Weight                                             0.52KGS

Front Glass                                     3.2mm,High Transmission, Low Iron,Tempered Glass

Temperature and Coefficients

Operating Temperature(°C):                -40°C ~ + 85°C

Maximum System Voltage:                  600V(UL)/1000V(IEC) DC

Maximum Rated Current Series:         10A

Temperature Coefficients of Pmax:     -0.435%

Temperature Coefficients of Voc:        -0.35%

Temperature Coefficients of Isc:           0.043%

Nominal Operationg Cell Temperature (NOCT): 47+/-2°C

 Materials of solar panel

1).Solar Cell——Polycrystalline solar cell 156*156mm

2).Front Glass——-3.2mm, high transmission, low iron, tempered glass

3).EVA——-excellent anti-aging EVA

4).TPT——-TPT hot seal made of flame resistance

5).Frame——anodized aluminum profile

6).Junction Box——-IP65 rated, high quality, with diode protection

Superiority: high quality anodized aluminum frame, high efficiency long life, easy installation, strong wind resistance, strong hail resistance.

Features

1. High cell efficiency with quality silicon materials for long term output stability

2. Strictly quality control ensure the stability and reliability, totally 23 QC procedures

3. High transmittance low iron tempered glass with enhanced stiffness and impact resistance

4. Both Poly-crystalline and Mono-crystalline

5. Excellent performance in harsh weather

6. Outstanding electrical performance under high temperature and low irradiance 

Quality assurance testing

Thermal cycling test

Thermal shock test

Thermal/Freezing and high humidity cycling test

Electrical isolation test 

Hail impact test

Mechanical, wind and twist loading test

Salt mist test

Light and water-exposure test

Moist carbon dioxide/sulphur dioxide

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  • Read the full blog post here: http://www.thediyworld.com/blog/?p=1610

    I had a blocking diode fail on me a few days back. It was the diode between the wind turbine and my battery bank. This diode actually became a zero resistance two way conductor and drained my battery bank through the DC wind turbine.

    A diode is like a one way valve. It allows electricity to flow in one direction but blocks it from flowing in the other direction.

    When a diode fails it can sometime short right out and conduct electricity in both directions. This is what happened to mine.

    There is a silver band on a diode. This is the negative side. The other end is the positive side. So if you want power to flow from your wind turbine like mine, for example, then you would have the positive wire form the wind turbine connected to the positive side of the diode. Then the negative side of the diode on the battery bank plus terminal.

    You can test a diode with a multimeter set on Ohms scale. Using the meter on a medium Ohms setting simple connect the test leads to the diode. Either way, it is not important for this test.

    In one direction you will measure some resistance. In the other direction the flow of electricity will be blocked and you will measure infinite resistance.

    When a diode blows out like mine did, you will have energy being conducted in both directions. My blown diode actually shows zero resistance in both directions. This is quite surprising. It is no wonder my battery bank was drained through the wind turbine.

    Follow my daily progress on the path to self sufficiency on my off grid solar homestead.

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