Measurement And Analysis Requirements - Tritec TRI-KA Instrucciones De Manejo

Measurement and analysis requirements_205

3. MEASUREMENT AND ANALYSIS REQUIREMENTS
The weather conditions must remain constant throughout the
measuring process. Significant changes in the weather will pro-
duce unreliable results of the characteristic curve measurement.
The standard EN 61829 (on-site measurement of I/U characteris-
tics) specifies a minimum irradiation of 700 W/m for reliable results.
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The higher the irradiation, the more accurate the characteristic
curve measurement.
The module temperature is measured at various points rather
than in a fixed place for a whole solar system. Where there are
several rows of solar modules, the temperature between the up-
per and lower rows varies quite considerably. The environment of
the solar modules can have a significant influence on the temper-
ature. Several temperature measurements on the modules of the
string to be measured produce the most reliable average.
The TRI-SEN sensor is placed in the mounting and fitted to the
module frame. It must face in the same direction and have the
same inclination as the solar modules to be measured. Even small
deviations can lead to significant errors in measurement and so
distort the results.
To ensure optimal system analysis, it is advisable to repeat the
measurements. The evaluation software allows several measure-
ments for the same string. In order to produce reliable measuring
results, it is advisable to expose the TRI-SEN to the measuring con-
ditions over a longer period.