Manufacturer for Poly-crystalline Solar Panel 300W Supply to Gambia
Short Description:
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Poly-crystalline Solar Panel 300W
Technical parameter
Maximum Power(W) 300W
Optimum Power Voltage(Vmp) 37.15V
Optimum Operating Current(Imp) 8.08A
Open Circuit Voltage(Voc) 45.30V
Short Circuit Current(Isc) 8.87A
Mechanical Characteristics
Cell Type Poly-crystalline 156x156mm (6 inch)
No of Cell 72 (6x12pcs)
Dimensions 1956x992x50mm
Weight 22.5Kg
Front Glass 3.2mm,High Transmission, Low Iron,Tempered Glass
Junction box IP65 Rated
Output Cable TUV 1×4.0mm2/UL12AWG,Length:900mm
Temperature and Coefficients
Operating Temperature(°C): -40°C ~ + 85°C
Maximum System Voltage: 600V(UL)/1000V(IEC) DC
Maximum Rated Current Series: 15A
Temperature Coefficients of Pmax: -0.47%
Temperature Coefficients of Voc: -0.389%
Temperature Coefficients of Isc: 0.057%
Nominal Operationg Cell Temperature (NOCT): 47+/-2°C
Materials of solar panel
1).Solar Cell——Poly-crystalline 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
солнечные панели с общей номинальной мощности в 200 ватт
solar panels – 2 x 100 watt nominal
UPDATE, 2014 October 19.
Answers to some questions:
1) Yes I did use too much heatsink compound initially, but what isn’t shown in the video is
me scrapping off all the excess.
2) The Peltier (TEC) is a TEC1-12710 from Ebay rated at 154Watts, Vmax 15.4Volts Imax
10Amps.
3) I did not completely overcome the condensation problem – this was just an experiment.
What’s not show on the video is that I filled the gap around the CPU/Cooling Block with
lots of Dow Corning DC4 silicone compound, this stopped condensation on the top but
the underside of the MoBo (where the CPU is) got wet.
Initial CPU temperature, as measured in BIOS, was -16°C but after running for a while it settled at -10°C.
The power supply was home-made from a 240v-12v toroidal transformer (two 12v outputs each capable of providing 9Amps, only one 12v output used) a 10amp bridge rectifier (KBU10M) and a 68000µF16volt electrolytic capacitor.
For this test power for the pump and ancillary fans was provide by a bench PSU, set to 12volts and capable of providing 2Amps, although 1.1Amps was max current required.
Cooling had to be supplied for the pump, which heated up noticeable at the base, and the bridge rectifier which still got very hot even with a heat sink and fan.
The transformer also got quite warm.
Some measured parameters:
Initial Peltier starting current 8.4Amps, settled to 7.8Amps when playing a movie on PC.
Peltier (PSU) voltage 13.5olts – Steady throughout test.
Water temperature : Start 20°C, After 3 hours 27°C
