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INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – EN
INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – EN
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Module Selection
For detailed key electrical data, please refer to the actual
data sheet referring to the relevant Module (available at
www.q-cells.com).
Ä
Only connect modules of the same type and the same
power class.
Safety Factor
During normal operation, a module may generate a greater
current and / or higher voltage than that determined under
standardized test conditions. Please use a safety factor of
1.25 for the following:
•
Calculating the voltage measurement values (V
oc
) of
components
•
Calculating the current measurement values (I
SC
) of
conductors
•
Sizing of control systems connected to the outlets of
the solar modules
Ä
Please follow the valid national guidelines for the
installation of electrical systems.
Series Connection
Connection of modules in series is only permitted up to
the maximum system voltage as listed in the applicable
data sheet of all the relevant modules to be installed.
Ä
Take into account all possible operating situations and all
relevant technical norms and regulations when designing
the system. It has to be ensured that the maximum
system voltage, including all necessary safety margins,
is not exceeded.
Ä
Take the voltage limit of the inverter into account when
determining the maximum number of modules in the
string.
Parallel Connection
Modules may be damaged by the occurrence of reverse
currents (caused by module defects, ground leaks, or
defective insulation).
Ä
Ensure that the maximum reverse current load capacity
indicated in the data sheet is met.
In order to limit reverse currents that may occur, we
recommend using the following safety options:
1) Layout with a limited number of parallel connected
strings :
Without undertaking further current blocking measures,
a maximum of two module strings may be operated in
parallel on an inverter or MPP tracker.
2) Layout with string fuses :
place fuses for each string of modules at the plus and
minus ends. Observe the maximum permitted number
of strings as indicated in the specifications provided by
the respective string fuse manufacturer and the technical
guidelines.
NOTE!
When installing different product versions, the lowest
minimum permitted reverse current load capacity applies.
Inverters
Inverters with or without transformers may be used.
2.4 Electrical layout
2 PLANNING
WARNING
! Fire Risk!
Ä
Do not install modules indoors.
Ä
Do not install modules on moving
objects.
Ä
Inspect the packaging for damages.
Ä
Contact the transport company regarding
any damage to the packaging.
Ä
Follow any instructions on the packaging.
Ä
Ensure that all personnel are aware of
and adhere to accident-prevention and
safety regulations.
Ä
While working wear clean gloves.
§
GB
§
I
§
D
DANGER
! Risk of fatal injury due to electric
shock!
Ä
Cover the modules with an opaque
material during installation.
Ä
Leave modules in their original
packaging until installation.
Ä
Store the modules securely in cool
and dry rooms. The packaging is not
weatherproof.
DANGER
! Risk of fatal injury due to electric
shock!
Ä
Do not install damaged modules.
Ä
Inform your distributor of any damages
immediately.
3.1 Safety and transport
3 INSTALLATION
