Electrical Layout - Sulfurcell SCG-HV-F Instructions D'installation

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The open circuit voltage for each
string combination should not
exceed either the maximum permitted
input voltage of the inverter used of the
maximum system voltage of 1000 V. The
maximum system voltage of other com-
ponents must be observed at all times.
Site-specific surrounding conditions
must also be kept in mind while laying
out the electrical fittings. PV modules
can significantly increase higher volt-
ages in certain conditions (e.g. low
temperatures, high irradiance values).
All components connected to the PV
system must have an operating voltage
area that includes the maximum power
point (MPP) and is always in a situation
to follow the MPP. They must also be
equipped for the maximum operating
voltage of the PV system.
When selecting the inverter, keep in
mind that there can be no negative
potential from DC side against the
earthing potential. In transformer
inverters, this can be ensured by
means of DC-minus earthing. The
earthing must be provided with a
suitable fuse (e. g. 0.4 – 1 A). In case
of doubt, please get in touch with
Sulfurcell for information on suitable
transformers.
The system must be included in the
existing potential compensation. The
relevant design, installation and
inspection must be carried out by an
appropriately qualified electrician in
accordance with the applicable national
standards and guidelines.
Please refer to the datasheet for
detailed electrical and mechanical
module data. The electrical rated data
of each module is also indicated on
its label.
EN