Three-phase photovoltaic grid-connected inverter
Installation
31
AC
DC
Figure 4.17 Connect PV string to inverter
4.4.2 Three-phase inverter grid connection
4.4.2.1 Terminal block grid connection
First, take off the protection cover of the AC connector and the bottom panel of the machine, then
connect the five leads L1, L2, L3, N (optional) and PE of three-phase public grid to the AC
connector interface , and ensure the conductor of the lead is unexposed and crimped firmly; then
connect the connection port of AC connector to the AC connection port of the inverter, and ensure
the leads of AC cable correspond to the connection ports of the connector and are tightened firmly.
Fig 4.18 three-phase inverter 40
–70kW grid connection
4.4.2.2 Parallel connection requirements of multiple inverters
Connect multiple inverters to low-voltage three-phase grid directly. If the total capacity of the
inverter exceeds 1.6MVA, contact our after-sale service staff.
5mm