Electrical Connection; System Wiring Diagram - Goodwe ET Series User Manual

06 Electrical Connection

6 Electrical Connection

6.1 System Wiring Diagram

• N and PE wiring via ON-GRID and BACK-UP ports of the inverter are different based on the
regulation requirements of different regions. Refer to the specific requirements of local
regulations.
• There are built-in relays inside of the inverter's ON-GRID and BACK-UP AC ports. When the
inverter is in the off-grid mode, the built-in ON-GRID relay is open; while when the inverter
is in grid-tied mode, it is closed.
• When the inverter is powered on, the BACK-UP AC port is charged. Power off the inverter
first if maintenance is required for the loads connected with BACK-UP ports. Otherwise, it
may cause electric shock.
N and PE cables are connected together in the Main Panel for wiring.
• To maintain neutral integrity, the neutral cable of ON-GRID side and BACK-UP side must be
connected together, otherwise BACK-UP function will not work.
• The following diagram is applicable to areas in Australia, New Zealand, South Africa, etc.
BAT
Battery
BMS
PV
PV string
L1
L2
L3
BACK-UP
N
Do not wire in this position
PE
or
if N and PE cables are
connected together.
Meter
L1
L2
L3
ON-GRID
N
PE
E-BAR
NOTICE
NOTICE
Smart
Smart
Meter
Meter
CT1
CT2
CT3
RCD
N-BAR
RCD
L1 L2 L3 N
PE
Normal loads
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User Manual V1.0-2022-08-30
L1
L2
L3
RCD
N
PE
L1
L2
L3
N
PE
E-N Link
E-BAR
BACK-UP
Loads
Utility grid