Figure 6.2 Switches in the auxiliary power module
3) Note that this QA5 switch is only configured in a single energy storage cabinet scenario for
CSU power supply. In other scenarios, QA5 is not configured. Before closing the switch, you need to
use a multimeter to measure whether the voltage of QA5 is DC 24V , if the input voltage is 24V, then
close QA5 to power CSU. After this, all auxiliary power supply of energy storage system is completed.
The socket and leakage protection switch RCB01 on the auxiliary power box of the energy storage
cabinet can be used according to the customer needs.
4) Put the isolation switch QB of high-voltage boxes in the energy storage cabinet or the battery
cabinet in the "ON" position.
Figure 6.3 Battery Disconnect Switch QB in High Voltage Box
Manually close the QA1 main power switch in the auxiliary power module. The green light on
the front door of the auxiliary power module should be illuminated after closing the QA1 main power
switch. Using a multimeter to measure the circuit breaker QA0 input is normal three-phase AC400V,if
yes then close the QA0, and then the PCS indicator is bright and the SOFAR LOGO light in the door
is green. Please refer to the Table 6.2 to check the PCS status.
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