www.photon.info/laboratory
/ p h o t o n -p i c t u r e s .c o m
G u i d o S c h i e f e r / p h o t o n -p i c t u r e s .c o m
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N o r b e r t M i c h a l k e R o m a n a B r e n t g e n s / p h o t o n -p i c t u r e s .c o m
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€100
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PHOTON us the Pasan SunSim3b sun simulator for effi ciency tests under STC.
G u i d o S c h i e f e r / p h o t o n -p i c t u r e s .c o m
p h o t o n -p i c t u r e s .c o m
Electroluminescent image of a damaged module.
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EffiIn an effificonditions (STC) is calculated. The test allows clear conclusions to be drawn about the effi ci-ency of a solar module. The tests allow devia-tions from the norm to be identifi ed quickly.
Test method Effi ciency testing is carried out under worldwide standardized operating con-ditions, which prescribe irradiation of 1,000 W per m² at the module level, a homogenous cell/module temperature of 25 °C and a sunlight spectrum at an air density of 1.5. PHOTON Laboratory us a sun simulator for the test, made by Pasan (Pasan SunSim3b), which is a class AAA device in all res-pects (the triple »A« stands for the highest degree of light source accuracy with spectral modifi cations, homogeneity and time stability).
Test result and documentation
The test provides IV characteristics from which the actual maximum po-wer of the module can be calculated. You will receive fully documented test results. A sample test report can be viewed at www.
photon.info/laboratory (♑ Download ♑ Test report).
Electroluminescence
solar module and to record possible defects that negatively infl uence the effi ciency and rvice life of the module.Test method儿童动画片排行榜
Voltage is applied externally to the module connectors. A luminous recombination
of electrons in the cells leads to the emission of photons. The module illuminates with rays in the near-infrared range, so they are not in the visible spectrum of the human eye. The emission of photons is captured by the electroluminescence camera.
Defects that can be detected via an electroluminescent image include:Microtears, as well as complete breaks and tho extending across cells • Impurities in the cells
• Crystallization defects in the wafer • Disconnected contact fi ngers and/or cell fractures that lead to electrical dis-•
connection and deactivation of individual cell components Depiction of the sintering belt
• General features of defective cell function
• Thermography allows the radiated heat from a solar generator to be captured so on of failings and/or defects.
include, among others:A short circuit in the solar cells • Inactive cell components • Moisture
clothes什么意思• Defective soldered connections • Defective strings or bypass diodes
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Test method
Thermography introduces current to a module that heats the module or cells. The thermal imaging camera measures temperatures in a module at a resolution of 1.23 megapixels (1,280 × 960 pixels). It allows damage to the solar cells to be identifi ed, places where electricity is not produced becau of defects. Instead, the electricity produced by the active cell components becomes imprinted and con-verts to heat. This can lead either to damage or to the destruction of a module.
We also offer the option of:
Determining behavior in weak light conditions (€200 per module) Determining the temperature coeffi cient
(€200 per module)
