300W CNBM Solar Polycrystalline Series III (300W—310W)

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China main port
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TT OR LC
Min Order Qty:
10000 watt
Supply Capability:
500000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 300 Number of Cells(pieces): 72

Product Description:

CNBM Solar Polycrystalline Series III (300W—310W)

Characteristics

Max Power Voltage Vmp(V)       

36.6

36.9

37.2

   37.5

Max Power Current Imp(A)   

7.66

7.73

7.8 

   7.87

Open Circuit Voltage VocV

44.2

44.6

45.1

   45.4

Short Circuit Current Isc(A) 

8.26

8.32

8.41 

  8

Max Power Pm(W)         

280

285

290

   295

 

Temperature Coefficient of Cells

NOCT   

  45±2

Temperature Coefficients of Isc (%/)

- 0.0492

Temperature Coefficients of Voc (%/)

 – 0.3374

Temperature Coefficients of Pmp (%/)

  –0.4677

 

Mechanical Data

Dimension   

1638 x 982 x 40 mm

Weight  

 19.5kg

No. of Cells and Connections  

 60 (6 x   10)

Tolerance       

0+5W

Cell Monocrystalline Cell   

  156 x 156 mm

Packing

700   Pcs/40ft(H) Container

 

Limits

Operating Temperature 

  –40 °C to +85°C

Storage Temperature 

  –40 °C to +85°C

Max System Voltage  

  1000VDC(IEC) / 600VDC(UL)

IV Curve


300W CNBM Solar Polycrystalline Series III (300W—310W)

300W CNBM Solar Polycrystalline Series III (300W—310W)

300W CNBM Solar Polycrystalline Series III (300W—310W)


Image

300W CNBM Solar Polycrystalline Series III (300W—310W)

300W CNBM Solar Polycrystalline Series III (300W—310W)

Guarantees

Products Guarantee 12 yrs free from defects in materials and workmanship

Performance Guarantee No less than 90% within 10yrs and no less than 80% within 25yrs

Certificates TUV (IEC61215&IEC61730), VDE(IEC61215&IEC61730), UL, CE

 

FAQ

1. Q: Do you have your own factory?

    A: Yes, we have. Our factory located in Jiangsu province.

2. Q: How can I visit your factory?
    A: Before you take off from your country, please let us know. We will show you the way, or arrange time to pick you up if possible.
3. Q: Do you provide free sample?
    A: Usually we do not offer free sample

4. Q: Could you print our company LOGO on the nameplate and package?

 A: Yes, we can do that.


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Q:how can i build a solar panel?
You might need some help from the sun.
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The first thing that you have to realize is that solar panels only make DC currant. This is used to charge batteries which when hooked to an inverter will make 20 v. AC. You need a large bank of batteries and a heavy duty inverter to power your house. There is also an automatic switch that will send power back to the utility company when you have excess power available. This is not a small project. Really think this out before you invest a lot of money for nothing.
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They will work somewhat in the shade but they really work best in direct sunlight. I have solar panels on my home and just a cloud passing over will cause the output to drop quite a bit.
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you silly ! with Solar there is always room for error . you have to build it in to your numbers . solar is full of errors . So you should plan on producing at 3 times what you expect you will need . then you have enough .
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Q:can a small solar panel be charged with lamps?
Sure!...did you ever use a solar powered calculator indoors under a lamp?? It works just fine.
Q:Solar Panel load resistors?
Photovoltaic cells have a load curve that gives the power conversion based on the current drawn. This makes it harder to calculate. For instance, at infinite resistance, the solar cell will have a peak voltage that produces no power (P=I*V=V^2/r). At short circuit, the voltage collapses to essentially nothing and so the power is almost nothing. There is an optimal load (sweet spot) where the resistance applied will draw the most power out of the cell while not overloading it. This measure is either given by the manufacturer or found experimentally. Upon taking a lit panel that has no load and applying a 00 ohm resistance, the voltage will drop. By how much is entirely dependent on the array layout and specific cell characteristics. As the resistance drops from the optimal load point, the voltage collapses fairly sharply. As the resistance increases from the optimal load point, the voltage will rise more at first and then level off to the peak or no-load voltage.

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