Idiomas disponibles
Idiomas disponibles
3.6 Photovoltaic (PV) connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit
breaker between inverter/charger and PV modules.
WARNING: All wiring must be performed by qualified personnel.
WARNING: It is very important for system safety and efficient operation to use
appropriate cable for PV module connection. To reduce risk of accidents, please use
the proper recommended size as below.
MODEL
5.2KW
DC48V
2/3KW
DC24V
When selecting proper PV modules, please consider the following parameters:
1. Open circuit voltage (Voc) of PV modules should not exceed max. PV array open
circuit voltage of inverter/charger.
2. Open circuit voltage (Voc) of PV modules should be higher than min. battery
voltage.
3. Max. Power voltage (Vmpp) of PV modules should be close to the best Vmp of
inverter/charger or within Vmp of panel max power point voltage range to get best
performance. If one PV module cannot meet this requirement, it is necessary to
have several PV modules in series connection. Refer to below table.
NOTE: The PV charging efficiency is maximized while PV system voltage is close to
best Vmp.
Maximum PV module numbers in series: Vmpp of PV module X pcs = Max. Vmp of
inverter/range
PV module numbers in parallel: Max. charging current of inverter/Impp
Total PV module numbers = maximum PV module numbers in series x PV module
numbers in parallel
INVERTER MODEL
Max. PV array open circuit voltage
PV array MPPT voltage range
MPPT number
TYPICAL
CABLE SIZE
AMPERAGE
18A
SOLAR CHARGING MODE
2/3 KW
DC24V
50
TORQUE
12AWG
1.2~1.6Nm
5.2KW
DC48V
450Vdc max
150~430Vdc
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