System Application - Goodwe ETC Series User Manual

2.3.2 System Application

1 2 3 4 5 6 7 8
RJ45
PV String
1
DC Breaker
≥ 125A
B A
Battery
Cable
No. Type
DC Input Cable (MPPT)
1 DC Power Cable
(BATTERY)
2 PE Cable
AC Output Cable
3 (GRID)/Load Output
Cable (LOAD)
RS485 Communication
4
Cable (RS485)
ETH
LAN
A
RS485
B
485_2
3
A B
AC Breaker (GRID)
LOAD
GW50K-ETC： ≥ 125A
GW100K-ETC： ≥ 250A
2
AC Breaker (BACK-UP)
GW50K-ETC： ≥ 125A
GW100K-ETC： ≥ 250A
BACK-UP
Load
Specification
Two single-core outdoor copper-core cables or aluminum cables
are needed per MPPT; （PV+ and PV-： M8 OT Terminals）
Copper Cable Conductor Cross Sectional Area: 25mm
Aluminum Cable Conductor Cross Sectional Area: 70mm
Single-core Outdoor Copper-core Cable M8 OT Terminal
Conductor Cross Sectional Area: 16 mm
Single-core or Multi-core Outdoor Copper-core Cable or
Aluminum Cable: (L1, L2, L3, N, and PE: M8 OT Terminals)
GW50K-ETC
• Copper Cable Conductor Cross Sectional Area(S): 25 mm
-50 mm
• Aluminum Cable Conductor Cross Sectional Area ≥ 70mm
GW100K-ETC
• Copper Cable Conductor Cross Sectional Area(S): 35 mm
-50 mm
• Aluminum Cable Conductor Cross Sectional Area ≥ 95mm
Outdoor Shielded Twisted Pair;
Conductor Cross Sectional Area: 0.25 mm
Router
A B
4
AC Breaker
(House Loads)
Loads
；
2
；
2
09
SEMS
GM3000C
Main Meter
L1
L2
L3
N
PE
S1 S2
P1 P2
External CT
- 50mm
2
2
- 25 mm
2 2
- 1 mm
2 2
Grid
2
2
2
2
2