What problems should be paid attention to during the installation of PV system inverter?

As the core component of the photovoltaic system, the inverter directly affects the power generation of the system. The following points should be noted:

(1) Because the connection between the inverter and the power grid changes the impedance characteristics of the inverter, it is easy to cause the resonance of the inverter itself, which often occurs in parallel with multiple inverters,

(2) The inverter must be rechecked, marked and recorded by a specially-assigned person after installation;

(3) The connection between the inverter ventilation duct and the external air duct shall be soft to prevent mechanical vibration from causing mechanical noise;

(4) When the inverter noise increases. In case of peculiar smell, pay attention to it, check the internal fault of the inverter, find out the cause and deal with it as appropriate.

(5) Pay attention to the detection of inverter leakage, grounding, phase sequence, etc. during installation and commissioning;

(6) At least two people shall be present at the same time during inverter commissioning, and pay attention to the safety protection of operators.