Photovoltaic Modules, directly or through diffuse radioactive waves will convert electricity from sunlight. In fact, all of the photovoltaic cells used in our calculator standing over our table for years, is being produced today in the latest technology, it is great importance because it is the main source of solar energy plants.
The quality of production for the sustainability of the plant is very important to note that the photovoltaic modules will try to draw attention to some points here need.
Photovoltaic modules has 7 - 8 consists of different layers according to production type.
These are Evan coating, Glass, Ribbon (ribbon), photovoltaic cells, Backsheet (behind the main carrier), Aluminum Box, Junction Box (junction box), cables
and connectors.Fotov
LIGHT through which they have received, the diode on the electric current formed in the inner and connection box (Junction Box) passing through, via cable, serial and parallel connections DC are created by the inverter.
Photovoltaic modules STC (1000 W / m2 irradiation, 25 ° C cell temperature, AM 1.5, EN 60 904 - in accordance with standards) Exits tested in standard
production line.
ELECTRICAL PERFORMANS (Module Sample)
|
Standart Test Conditions (STC) Electrical Parameters |
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|
Module Type |
YLLxxxP-29b (xxx=P max) |
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|
Output Power |
P max |
W |
260 |
255 |
250 |
245 |
240 |
|
Output Power Tolerance |
ΔP max |
W |
0 / +5 |
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|
Module Efficiency |
N m |
% |
15,9 |
15.6 |
15.3 |
15.0 |
14.7 |
|
Current- P max |
I mmp |
A |
8.59 |
8.49 |
8.39 |
8.28 |
8.18 |
|
Open Circuit Voltage |
V oc |
V |
37.7 |
37.7 |
37.6 |
37.5 |
37.5 |
|
Short Circuit Current |
I sc |
A |
9.09 |
9.01 |
8.92 |
8.83 |
8.75 |
STC: 1000/m2 25 degrees cell temperature, AM 1.5, according to EN 60904-3.
In accordance with EN 60904-1 200W / m2 on average relative yield decrease of 3.3%.
|
Normal Operation Cell Temperature (NOCT) Elektrical Parameters |
|||||||
|
Output Power |
P max |
W |
189.7 |
186.0 |
182.4 |
178.7 |
175.1 |
|
Voltage - P max |
V mpp |
V |
27.6 |
27.4 |
27.2 |
27.0 |
26.8 |
|
Current - P max |
I mmp |
A |
6.87 |
6.71 |
6.71 |
6.62 |
6.54 |
|
Open Circuit Voltage |
V oc |
V |
64.8 |
34.4 |
34.7 |
34.6 |
34.6 |
|
Short Circuit Current |
I sc |
A |
7.28 |
7.21 |
7.21 |
7.14 |
7.07 |
Modules light directly into electricity for the translation in accordance with these characteristics, electrical performance values is very important.
One of the most important conditions affecting the electrical performance is thermal properties of the material and Working Conditions, declares the value of each brand differences with the production quality
PHOTOVOLTAIC MODULE THERMAL PROPERTIES (Module Sample)
|
Nominal Operation Cell Temperature |
NOCT |
°C |
46 +/- 2 |
|
P max Temperature Coefficiency |
Y |
%/ °C |
-0.42 |
|
V x Temperature Coefficiency |
B voc |
%/ °C |
-0.32 |
|
I sc Temperature Coefficiency |
a ısc |
%/ °C |
0.05 |
|
V mmp Temperature Coefficiency |
B vmpp |
%/ °C |
-0.42 |
PHOTOVOLTAIC MODULE OPERATION CONDITIONS (Module Sample)
|
Max System VVoltahe |
1000V DC |
|
Max DC Fuse |
15A |
|
Reverse Current Limitation |
15A |
|
Operation Temperature Range |
-40°C ila 85°C |
|
Max Static Load, Front(ex. Snow) |
5400Pa |
|
Max Static Load Rear/ex. Wind) |
2400Pa |
|
Max. Hail Impact(diameter/
|
25mm /23m/s |
PHOTOVOLTAIC MODULE STRUCTURE MATERIALS (Module Sample)
|
Front cover (material / thickness) |
Low iron tempered glass / 3.2 mm |
|
Cell (number / material / sizes / # bar) |
60 /multicrysthalin
|
|
Encapsulated (material) |
Ethylene vinyl acetate (EVA) |
|
Frame (material / color / anodization color / edge padding |
Anodized aluminum alloy / silver / light / silicone or tape |
|
Junction Box (protection degree) |
>IP65 |
|
Cable (length/diameter
|
1100mm /4 mm2 |
|
Connector (type/protection degree) |
MC4/IP67 or YT08-1 / IP67 or Amphelon H4 /IP68 |
As we mentioned in the previous section, mounted on different construction types, depending on the static characteristics of each project, photovoltaic modules, the products of each manufacturer being protected by certain standards and established one of the most important points of warranty are mounting and mounting points.