2. Safety
8
2.3.3 Fail-safe actions upon power failure
When a system outage occurs, the utility pole in the following figure disappears and it
switches to the backup mode after 20 seconds to supply power. With 7.2 kWh, the supplied
power is a maximum of 4 kW and with 10.8 kWh, a maximum of 4.98 kW.
The back mode is canceled in 5 minutes after return to normal operation.
The utility pole appears when power is supplied to the system. Upon system outage, it
disappears. Upon PV generation, the sun mark appears.
[Figure 2-3: Back up mode (LCD)]
Under DOD 90% and 95% of battery to loads, the 7.2 kWh system can operate for approx. 92
minutes and the 10.8 kWh system for approx. 110 minutes.
System
Battery capacity Battery energy
Load
Hour
Min
7.2 kWh
7.2 kWh
6.48 kWh
4 kW
1.5
92.3
10.8 kWh
10.8 kWh
9.72 kWh
4.98 kW
1.8
110.8
[Table 2-3: Maximum Outage Response Times for each System with Battery Full]
NOTICE
The outage response time may vary depending on the battery
capacity and loads.
