SolaX Power QUICK INSTALLATION GUIDE Quick Installation Manual page 23

Wiring Connection on the BI
7.5 Connect CT to BI
A set of CTs (CT L1A , CT L2A,200A) has been built in the BI. In some
application scenarios ,it can measure both load and generation and there is
no need to connect external CTs.But in some application scenarios,such as
Partial-Home Backup solution,connecting external CTs (CT L1B , CT L2B) to
measure total current both load and generation is needed. In addition,if the
site includes solar equipment, a solar CT is placed after the solar inverter to
measure the solar output.
CT L1A terminal and CT L1B terminal have been connected in parallel on
PCB. CT L1A and CT L1B are used to measure total current both load and
generation of the same phase L1.
CT L2A terminal and CT L2B terminal have been connected in parallel on
PCB. CT L2A and CT L2B are used to measure total current both load and
generation of the same phase L2.
NOTE!
For detailed information about how to configure external CT, please
refer to "BI CT configuration for A1-ESS-G2".
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