Sungrow SG125HV-30, Руководство пользователя

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5 Electrical Connection User Manual
42

Observe the pin assignment of AC terminal block. If a phase wire is
connected to the
“PE” terminal, it may permanently damage the
inverter.

Please avoid squeezing the cable insulation layer into the AC terminal.
Improper connection may affect the normal operation of the inverter.

During AC cable connection, the cables inside the lower part of the
device should be bent to be surplus in length. In this way, cable
dropping or loosening, which can cause arc or other problems
impairing functionality of the device, due to self-weight of the cables
in case of land subsidence is avoided.
Step 7
Screw cap-nut tightly onto the cable.
Step 8
Seal the gaps between the AC cable and the gland inside the lower part
of the cabinet with duct seal.
Seal the gap between the cable and the gland
/
conduit with duct seal
or other suitable materials to prevent the entry of foreign bodies or
moisture and ensure long-term and normal operation of the inverter.
5.3 Connecting Inverter to PV Arrays
Lethal voltage exists!
PV arrays generate electrical energy when exposed to light and thus can
create an electrical shock hazard.
Make sure that the PV impedance to the ground is proper before
connecting the PV array to the inverter.