5.2 Safety
The PV Inverter must be connected to the AC ground from the utility via the Ground
Terminal (PE)
5.3 Connecting to the grid (AC utility)
cable requirements
C
D
A
B
Measure grid (utility) voltage
and frequency. It should be
230VAC , 50Hz and single
phase.
Open the breaker or fuse
between PV Inverter and
utility.
Sc r e w t o r si o na l f o rc e i s
8kg/cm.
5 Electrical Connection
5.1 System Diagram with Inverter Electrical connection
PV Panel: Provide DC power to inverter.
Converts DC (Direct Current) power from PV panel(s) to AC (Alternating
Current) power. Because Inverter is grid-connected it controls the current
amplitude according to the PV Panel power supply. Inverter always tries to
convert the maximum power from your PV panel(s).
Connection system: This “interface” between Utility and PV-Inverter may
consist of electrical breaker, fuse and connecting terminals. To comply
with local safety standards and codes, the connection system should be
designed and implemented by a qualified technician.
Utility: Referred to as “grid” in this manual, is the way your electric power
company provides power to your place. Please note that Inverter can only
be connected to low-voltage systems(namely,230VAC,50Hz).
A
B
C
D
Position Description
A
B
C
D
E
F
PV modules
DC load circuit breaker
Growatt PV Inverter
AC load circuit breaker
Energy meter
Utility grid
8 9
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