Description Of The Device; Mode Of Operation; System Layout - Kaco blueplanet 3.0 TL3 M2 WM OD IIG0 Operating Instructions 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 this into the power grid. The
starting procedure begins when there is sufficient sunlight and a specific minimum voltage is present in the device. The
feed-in process begins once the PV generator has passed the insulation test and the grid parameters are within the re-
quirements 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

Inverter with
DC isolator switch* &)
circuit-breaker
Load
Reference
KWh
counter
Selective
main switch
Grid monitoring point
Fig. 1: Circuit diagram of a system with two inverters
Key
PV generator
Inverter with circuit-breaker
Line protection
Feed-in meter
Selective main switch
Reference counter
DC isolator switch
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blueplanet 7.5 TL3 KACO blueplanet 8.6 TL3 KACO blueplanet 9.0 TL3 KACO blueplanet 10.0 TL3
PV generator
Inverter with
DC isolator switch* &)
circuit-breaker
Line protection
Feed-in meter
KWh
Selective
main switch
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 connec-
tion.
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 meters.
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 en-
ergy drawn.
Use the DC isolator switch to disconnect the device from
the PV generator.
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