Three-phase photovoltaic grid-connected inverter
Installation
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(3) Before connecting DC connector to inverter, use a multimeter to measure the voltage of the DC
input string, verify the polarity of the DC input cable, and ensure that the voltage of each string is
within the allowable range of the inverter, as shown in Figure 4.16.
The PV string connected to 3-phase PV inverter DC input must adopt the DC
connector configured especially for the inverter, do not use other connection
devices without authorization from our company, otherwise damage to the
device, unstable operation or fire may occur and our company will not undertake
quality assurance or assume any direct or joint liability thereof.
Plan 2: Use straightly-inserted terminal
Step 1: Connect the outlet of PV board to the terminal delivered along with the machine
Figure 4.15 Connection of MC4 DC connector and PV string
(1)
Lighting, short-circuit and other protection measures which meet the local electrical
safety laws and regulations are needed before the connect PV strings to inverter
PV strings can be connected to inverter only after protection measures which
conform to local electrical regulations are taken and the technical parameters in
this manual are fulfilled.
