80% OFF Price For Poly-crystalline Solar Panel 90W to Malawi Factories
Short Description:
We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for 80% OFF Price For Poly-crystalline Solar Panel 90W to Malawi Factories, Adhering to the business principle of mutual benefits, we have won good reputation among our customers because of our perfect services, quality products and competitive prices. We warmly welcome customers from home and abroad to cooperate with us for common success.
Poly-crystalline Solar Panel 90W
Technical parameter
Maximum Power(W) 90W
Optimum Power Voltage(Vmp) 18.33V
Optimum Operating Current(Imp) 4.91A
Open Circuit Voltage(Voc) 21.96V
Short Circuit Current(Isc) 4.89A
Mechanical Characteristics
Cell Type Poly-crystalline 156x104mm (6 inch)
No of Cell 36 (4x9pcs)
Dimensions 1008x678x35mm
Weight 8.0KGS
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: -0.435%
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——Poly-crystalline solar cell 156*104mm
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
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.
https://www.youtube.com/user/techman2015/playlists?view=50&shelf_id=10&sort=dd
Please donate to help keep The Off Grid Project ™ going: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=3TQSWXLLRZ6HW
Join The Off Grid Project ™ and The Do It Yourself World ™ forum and share your ideas, tips and projects.
http://www.thediyworld.com/forum
The Off Grid Project ™ is presented by The Do It Yourself World ™.
http://www.TheDIYworld.com
Prep de bicicletas
