Protection Of The Connection To The Auxiliary Grid/Genset; Residual Current Device; Storage System Connection Protection; Type Of Grid - Ingeteam INGECON SUN STORAGE 1Play Manuel D'installation

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5.5. Protection of the connection to the auxiliary grid/genset

Thermomagnetic circuit breaker
A thermomagnetic circuit breaker must be installed on the connection from the inverter to the auxiliary grid/genset.
The following table provides the necessary data for the selection of these devices by the installer.
INGECON SUN STORAGE 1PLAY
When selecting the protection in an installation you must take into account that its breaking capacity is greater
than the short-circuit current of the auxiliary grid connection point.
You must also take into account that the working temperature influences the maximum current permitted by these
protections as indicated by the manufacturer.

Residual current device

These inverters are equipped with a residual current monitoring device that disconnects the unit if it detects a
residual fault current according to electrical safety standard IEC 62109. For this reason, it is not necessary to
include a residual current device between the unit and the auxiliary grid.
This protection does not detect residual currents produced upstream of the inverter. If it is necessary to install a
residual current device upstream of the inverter, it must have a residual current lower than the maximum effective
current that can be generated in the photovoltaic installation in any of its operating conditions.
The grounding capacity of the photovoltaic modules varies depending on the technology they are manufactured
with. During the grid injection, a diverted current is produced from the cells to earth, whose value depends on the
assembly of the modules and environmental conditions (rain, snow, etc.).

5.6. Storage system connection protection

It is mandatory to install a continuous current switch between the inverter and the battery bank. It must have
appropriate dimensions to open the battery bank, taking into account the maximum charge and discharge current.
These inverters do not admit grounding of the batteries. Therefore, the battery bank terminals must be isolated
from ground. Otherwise the inverter will give an insulation fault.

5.7. Type of grid

These units can be connected to a single-phase (L-N-PE) or two-phase (L-L-PE) 220/240 Vac grid. They are not
compatible with Split-phase grids.
For single-phase grids (L-N-PE) the admissible grounding systems are TT and TN. See "10. Auxiliary grid/genset
connection" to identify the type of grid admitted by the unit.
20
Maximum auxiliary
grid/genset current
3TL
6TL
Rated current for the
thermomagnetic circuit
50 Arms
50 Arms
Phase
Neutral
ABH2013IQM01_C- Installation and Operation Manual
Preparation for installing the unit
breaker
63 Arms
63 Arms