BYD DESS-B08P03A-A - System Startup

Distributed Energy Storage System Build Your Dreams
7
3.1 System Startup
1. Close the isolation fuse QF inside the cabinet and switch on MCB 1;
2. 1) If there is grid power available, close the circuit breaker “GRID DISCONNECT” and
“AC-INPUT DISCONNECT”;
2) If there is no grid power, press “SBT” button for 5 seconds; and check whether the HMI on
the door starts up normally; Wait for 5 seconds, after hearing two successive sounds [pa],
this suggests the BMS has started in normal condition;
3. Close the circuit breakers on left side of cabinet according to the connected equipment as
shown below:
Table 3.1 Function and related circuit breakers
Function ( to connect)
Circuit Breakers
Big solar inverter (≤10kw)
Switch on “GRID DISCONNECT” and “AC-BIG-SI DISCONNECT”
Big load (<15kw)
Switch on “GRID DISCONNECT”
Small load (≤3kw)
Switch on “AC-OUTPUT DISCONNECT”
Small solar inverter (≤3kw)
Switch on “GRID DISCONNECT”, “AC-INPUT DISCONNECT” and
“AC-SI DISCONNECT”
DESS to the mains grid
Switch on “GRID DISCONNECT” and “AC-INPUT DISCONNECT”
NOTE:
1) If the DESS does not startup normally after following the system startup procedure, please check whether all
fuses are secure and intact and the communication line is connected well. If the fault cannot be found or
solved, please contact your local agent or BYD Company Limited.
2) If the DESS startup normally but stops working shortly thereafter that, check the external input load power is
appropriately rated. Also check for possible short circuits, and ensure there is adequate battery capacity
remaining. If the fault cannot be found or solved, please contact your local agent or BYD Company Limited.