6.2 Grid-Connection
INVOLAR MAC250 Micro-Inverter system connects grid automatically. It detects
and monitors the performance of each PV module in your PV array. When the output
energy reaches the power generation conditions, the INVOLAR MAC250
Micro-Inverter system begin connect grid and generate electricity.
In the process of connecting grid and generating electricity, a Maximum Peak
Power Point Tracker (MPPT) controls each PV module by INVOLAR Micro-Inverter
system.
6.3 Grid Disconnect
If the state grid cannot match the following situations (diagram 6-1), it bring the
INVOLAR Micro-Inter to a rest.
Diagram (6-3) Parameter of European state power grid
Type Rated Variation Range
Voltage 230V 207V - 244V
Frequency 50Hz 47Hz - 51Hz
Only to be carried out by qualified competent personnel.
Start inverter after checking all below steps:
WARNING
Connect the INVOLAR Micro-Inverter to the electrical utility grid only after
receiving prior approval from the utility company.
WARNING
Only qualified personnel could connect INVOLAR Micro-Inverter to
the electrical utility grid.
Installation checklist
To ensure the safe operation of the devices, they may be installed and
commissioned only by qualified personnel in full compliance with the warnings
referred to in this manual.
Checklist
Check the mechanical and electrical installation of the unit before startup. Go
through the checklist below together with another person. Read the Safety
instructions and EC directives on the previous pages of this manual before you work
on the unit.
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