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Desc rip ti o n
3
Description
3.1
Mode of Operation
The inverter converts the DC voltage generated by the PV modules into AC voltage and feeds it into the grid.
The feed-in process begins when there is sufficient sunlight and a specific minimum voltage is present in
the inverter. If, as it gets dark, the voltage drops below the minimum voltage value, the feed-in operation ends and
the inverter switches off.
3.2
Description of the unit
3.2.1
Powador inverter as part of a PV system
3.2.1.1
System layout
Consumption meter
Main switch
Figure 1: Circuit diagram of a system with two inverters
3.2.1.2
Summary of the components
PV generator
The PV generator, i.e. the PV modules, converts the radiant energy of sunlight into electrical energy.
DC terminal point
Options for parallel connections of several generator strings:
•
To a DC terminal point between the DC generator and inverter,
•
Directly to the inverter (terminals for 12 (3 x 4) strings are provided on the inverter),
•
Directly to the PV generator with a positive and negative lead to the inverter.
Operating Instructions Powador 30.0-72.0 TL3_EN
PV generator
Line protection
Load
KWh
KWh
Selective main switch
Grid connection point
PV generator
Inverter with
DC isolator switch
Feed-in meter
Inverter with
DC isolator switch
Line protection
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