Good User Reputation for Poly-crystalline Solar Panel 200W Supply to Tanzania
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Poly-crystalline Solar Panel 200W
Technical parameter
Maximum Power(W) 200W
Optimum Power Voltage(Vmp) 26.78V
Optimum Operating Current(Imp) 7.47A
Open Circuit Voltage(Voc) 32.66V
Short Circuit Current(Isc) 8.21A
Mechanical Characteristics
Cell Type Polycrystalline 156x156mm (6 inch)
No of Cell 54 (6x9pcs)
Dimensions 1482x990x40mm
Weight 17.6Kg
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——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
SunPower solar panels stand up to shade.
Trying to repair the oscillating feature on a Dowell floor fan. Learn a little about what makes your fan automatically turn left to right.
Although the repair was a failure, I’ve located the broken part and you might find it interesting to see how the fan works and what part broke.
This is a Dowell Philippines floor fan with 3 speed settings. The main function of the fan works as expected but the oscillating feature no longer works.
After taking the fan apart and getting access to the rear gearbox, I was able to find a nylon gear / shaft is broken. I tried to repair the part with super glue and a 2-part epoxy but neither were able to create a strong bond.
Ultimately, I need to find a replacement part instead of trying to fix the existing one. I’ve already reached out to Dowell to see if they can supply the part.
I also discovered another problem which is the rotary 3-speed control switch. Inside, the PCB has broken which causes reliability issues. A replacement rotary switch is a common part and sells for around P120 ($2.50)
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