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4.3 Fusing
■
When fuses are fitted they should be rated for the maximum DC voltage and connected
in each, non- grounded pole of the array (i.e. if the system is not grounded then fuses
should be connected in both the positive and negative poles).
■
The maximum rating of a fuse connected in series with an array string is typically 15A but the
actual
module specific rating can be found on the product label and in the product datasheet.
■
This fuse rating value also corresponds to the maximum reverse current that a module
can withstand (when one string is shaded then the other parallel strings of modules
will be loaded by the shaded string and current will flow) and therefore impacts the
number of strings in parallel.
4.4 Inverter Selection and Compatibility
■
Link Energy modules normally can be operated together with either galvanically
isolated (with transformer) and transformer-less inverters.
■
Potential Induced Degradation (PID) is sometimes observed in PV modules due to a
combination of high humidity, high temperature and high voltage. PID is most likely
to cause degradation under the following conditions:
a)
Installations in the warm and humid climates
b)
Installation close to a source of continual moisture, such as bodies of water
