Description Of The Device; Mode Of Operation; System Layout - Kaco blueplanet 3.0 NX3 M2 Manual

3 Description of the device

3.1

Mode of operation

The device converts the DC voltage generated by the PV modules into AC voltage and feeds it into the power grid. The starting
procedure begins when there is sufficient sunlight and a minimum voltage is present in the device. The feed-in process begins
once the PV generator has successfully passed the insulation test and the grid parameters are within the requirements
imposed by the grid operator for a specific monitoring time. If, as it gets dark, the voltage drops below the minimum voltage
value, feed-in mode ends and the device switches off.
3.2

System layout

Reference
counter
Selective
main switch
Grid monitoring point
Key
PV generator
Inverter
Line protection
Feed-in meter
Selective main switch
Reference counter
Integrated DC isolator switch
KACO blueplanet 3.0 NX3 M2 KACO blueplanet 5.0 NX3 M2 KACO blueplanet 8.0 NX3 M2 KACO blueplanet 10.0 NX3 M2
KACO blueplanet 15.0 NX3 M2 KACO blueplanet 20.0 NX3 M2
PV generator
Inverter
Line protection
Load
Feed-in meter
KWh KWh
Selective
main switch
Fig. 2. Circuit diagram of a system with two inverters
PV generator
Line protection
Definition / information on the connection
The PV generator converts the radiant energy of sunlight
into electrical energy.
The PV generator is connected to the device's DC
connection.
The circuit breaker is an overcurrent protection device.
The feed-in meter is to be specified and installed by the
power supply company. Some power supply companies
also allow the installation of your own calibrated counters.
The selective main switch is to be specified by the power
supply company.
The reference counter is to be specified and installed by
the power supply company. This measures the amount of
energy drawn.
Use the integrated DC isolator switch to disconnect the
device from the PV generator.
Inverter
Page 6