Three-phase photovoltaic grid-connected inverter
Installation
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PV +
PV +
PV +
PV +
PV +
PV +
PV+wiring diagram
PV-wiring diagram
PV -
PV -
PV -
PV -
PV -
PV -
Fig 4.14 Connection of DC connector and PV string
The procedures for connecting three-phase PV inverter DC input to the PV string are shown
below:
(1)Before connecting the inverter to PV string, ensure proper measures against lightening and
short circuit have been taken;
three-phase PV inverter can be connected only after protection measures which
conform to local electrical regulations are taken and the technical parameters in
this manual are fulfilled.
(2) Open the wiring bin of the inverter, make the anode and cathode of the PV string whose
terminals have been well crimped go through the water-proof PG head, and fix the terminals to
corresponding position, and ensure the conductor of the lead is unexposed and crimped firmly;