Three-phase Grid-tied Solar Inverter Electrical connection
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5 Electrical connection
5.1 Overview of electrical connections
This section will introduce the electrical connection related content and related safety precautions in
detail.
Fig 5.1 Schematic diagram of PV grid-connected system connection
Electrical connections must be completed by professional worker. Wrong
operation may cause equipment damage during system operation, and even
personal injury.
All electrical installations must comply with national/regional electrical safety
regulations.
Ensure that all cables are installed tightly, without any damage, and meet the
specified safety requirements.
It is not allowed to turn on the AC and DC circuit breakers before the inverter
completes the electrical connection and check.
Read this section carefully and operate strictly according to the requirements.
Pay attention to the rated voltage and current values specified in this manual, and
do not exceed the limit values specified in this manual.
5.2 Connect the protective ground wire
Step 1: Crimp the OT terminal to the ground wire
Step 2: Remove the screw at the grounding position on the side of the chassis, fix the ground wire
with the screw and tighten the tightening torque 7-9N•m.
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