KACO Powador 3200 - 6600 User Manual
Page 21
EN
Installing the inverter
Page 21
Operating Instructions for Powador 3200-6600_EN
Authorised electrician
NOTE
In order to avoid asymmetries in the grid, systems with multiple inverters should be designed so that
the inverters feed into the grid in differing phases.
›
The dynamic grid support (FRT) only functions with a three-phase grid connection.
›
Observe the following grid-type-specific connection requirements and the schematic views in Bild
Country and
grid-type
Grid monitoring
Required
monitoring
max. asymmetry between phases
L1,L2,L3
DE-NSP
Three-phase or
single-phase
phase unbalanced
load
4.6 kVA
IT-CEI021
single-phase
phase unbalanced
load
6 kVA
other countries
Three-phase or
single phase
If you have any queries, please contact your grid operator.
Table 5:
Grid-type-specific connection conditions
NOTE
For systems which feed into the low-voltage network, the three-phase connection is preferable.
ACTIVITY
Cables on the AC screw terminal must be re-tightened at regular intervals using the necessary
tightening torque (see chapter 7.2 auf Seite 19).
Making the grid connection
↻ Use wires with 3 conductors (L1, N, PE) or 5 conductors (L1, L2, L3, N, PE).
(3-phase grid monitoring)
1. Unscrew the cable fitting.
2. Remove the outer cladding of the AC cables.
3. Insert the AC leads through the cable fitting into the connection area.
4. Strip the insulation from the AC cables.
5. Open the locks for the PCB terminals.
6. Connect the cables in accordance with the label on the PCB terminals
7. Close the locks for the PCB terminals.
8. Check that all connected cables are securely fitted.
9. Tighten the cable fitting.
»
The inverter is now connected to the power grid.
PE
N
BU
L2
BK
L1
BN
GNYE
L3
GY
Figure 14: AC connection terminals
NOTE
An AC-side disconnection unit must be provided during the final installation stage. This disconnec-
tion unit must be installed so that it can be accessed at any time without obstruction. If a residual
current circuit breaker is necessary due to the installation specification, a type B residual current
circuit breaker must be used.