Curve Measuring Device for Photovoltaic Systems

14 June 2011 - The Swiss photovoltaics distributor and system integrator TRITEC has developed the new characteristic curve measuring device TRI-KA II that is perfectly tailored to today’s and future needs of PV installers. Using the characteristic curve analysis, the PV system’s output can be measured during installation, hand-over or maintenance of the system and compared with the nominal output.

Work with the characteristic curve measuring device TRI-KA could not be more efficient: The device handles very easily and its use is extremely flexible and variable due to its technical advancements.

In addition, the measuring procedure of the TRI-KA, combined with the TRI-SEN, is extremely simple. The radio link between the irradiation and temperature sensor TRISEN on the roof and the analytical device TRI-KA at the inverters in the basement allows for an uncomplicated wireless measurement of the off-load voltage and the short-circuit current of the system. Thanks to the increased input range for current (0.1 to 15 A) and voltage (1 to 1000 V), both individual modules and entire strings can be measured. The TRI-SEN now has two reference cells (mono- and polycrystalline), and thus the sensor provides more precise irradiation values and the results are even more conclusive.

The TRI-KA is supplied as a full set in a high-quality case, which contains everything needed for characteristic curve analyses. Due to its easily manageable size, low weight and sturdy casing, the TRI-KA is perfectly suited to be used on the roof and in the field.

Also new is the operation of the TRI-KA via a touch screen with enhanced menu navigation. Furthermore, the software for the analysis of the readings has been completely revised and designed even more user-friendly in collaboration with installers. The software can be navigated intuitively and without much prior knowledge. It guides the user through the analysis step by step. The program is downwards compatible so that older measurements can still be read.