Electrical Wiring Connection; System Connection Diagrams - Goodwe ETC Series User Manual

2.3 Electrical Wiring Connection

2.3.1 System connection diagrams

According to Australian regulations, the N wires on the GRID side and BACK-UP side should be
connected to one terminal block. Otherwise, the BACK-UP function may fail.
The following diagram shows the wiring connection when the N wire and the PE Cable are connected to the
same terminal block.
Equipment installed in Australia, New Zealand, South Africa, and so on should follow this diagram. All
installations and wiring connections should meet local laws and regulations.
BMS
Battery
Hybrid Inverter
PV String
The following diagram shows the wiring connection when the N wire and the PE Cable are connected
separately.
Equipment installed in China, Germany, Czech Republic, Italy, and so on should follow this diagram. All
installations and wiring connections should meet local laws and regulations.
When the inverter is working in BACK-UP mode, the N wire and PE cable will be connected
in one internal relay. This relay will be disconnected when the inverter is working in grid-
tied mode.
N
PE
BMS
Battery
Hybrid Inverter
PV String
Distribution box
L1
L2
L3
N
PE
Disconnect this terminal when the N
or
wire and the PE cable are connected
Back-Up
to the same terminal block.
Meter
L1
L2
L3
N
PE
On-Grid
RCD
E-BAR
L1 L2 L3 N
Normal Loads
Distribution box
L1
L2
L3
N
PE
or
Back-Up
Meter
L1
L2
L3
N
PE
On-Grid
RCD
E-BAR
L1 L2 L3
Normal Loads
08
RCD
Smart
Meter
N-BAR
E-N
Link
E-BAR
PE
RCD
Smart
Meter
E-BAR
N PE
L1
L2
Back-Up
L3
Loads
N
PE
L1
L2
L3
Grid
N
PE
L1
L2
Back-Up
L3
Loads
N
PE
L1
L2
L3
Grid
N
PE