Goodwe ETC Series User Manual page 12

03 Product Introduction
Self Consumption System (Hybrid Scenarios)
Inverter
PV string
Battery
No. Parts
1 PV string
2 Inverter
3 Battery
4 SPDT (Single
Pole, Double
Throw) switch
5 Load breaker
6 Smart meter
7 BACK-UP
loads
SPDT (Single Pole,
BACK-UP loads
Double Throw) switch
The PV string is composed of series connected PV panels. Only for
hybrid inverters.
Supports ETC series inverters.
Select the battery model according to the inverter model and the
approved battery list.
• An SPDT switch is recommended to ensure that the BACK-
UP loads do not stop working when the inverter is off or in
maintenance..
• Recommended specifications of SPDT switch:
• For GW50K05-ETC, GW50K06-ETC, and GW50K07-ETC: the
nominal current is ≥125A and the nominal voltage is ≥415V.
• For GW100K05-ETC, GW100K06-ETC, and GW100K07-ETC: the
nominal current is ≥250A and the nominal voltage is ≥415V.
Depends on the actual using load.
The smart meter can be purchased from the inverter manufacturer.
Recommended model: GM3000C.
• Connecting BACK-UP loads, such as loads requiring 24-hour
power supply or other important loads.
• Connecting unbalanced loads. L1, L2, L3 of the inverter
respectively connected to loads with different power.
Smart
meter
Load
breaker
ON-GRID loads
Description
8
User Manual V1.0-2023-04-30
Meter
Utility Grid