Connection For Other Types Of Communication; Ground And Pole Connections To The Electric Grid; Protection Of The Connection To The Electric Grid - Ingeteam Ingecon Sun 3.6TL U Installation Manual

Installation manual
Refer to the «AAX2002IKH01 Communication accessory installation manual» to correctly wire the male connectors
which need to be plugged into the inverter connector.
This connector can be supplied by Ingeteam Inc, if requested when ordering the equipment.

5.3.5. Connection for other types of communication

At the installer's request, optionally the inverters can be fitted with hardware for communication via:
• GSM/GPRS phone line.
• Fibre optics.
• Ethernet.
In all cases, the auxiliary signals are connected directly to the corresponding communications card.
Refer to the «AAX2002IKH01 Communication accessory installation manual».

5.3.6. Ground and pole connections to the electric grid

The metal parts of the inverter (equipment ground) are electrically connected to the ground point of the electric grid.
In order to guarantee personal safety, this point must be connected to the installation ground.
The connection of the Neutral and Phase cables from the Grid to the inverter is performed through a hole and there
are connected to screw terminals.
The cables must comply with the provisions of the National Electrical Code ANSI/NFPA70, Canadian Electrical Code
CEL and other local or states codes.
If the distance between the inverter and the Grid connection point is such that cables with a larger cross section are
required, then we would recommend the use of an external distribution box, located close to the inverter, to change
from one section to another.
Ingeteam can optionally supply this box.

Protection of the Connection to the electric grid

Protective devices need to be installed in the inverter connection to the Electricity Grid.
Thermal-magnetic breaker
This breaker must comply with the provisions of the National Electrical Code ANSI/NFPA70, Canadian Electrical Code
CEL and other local or states codes.
It should always be ensured that the device cut-off power is higher than the short-circuit current at the grid connec-
tion point.
Account should also be taken of the fact that the operating ambient temperature affects the maximum current
admitted by the said protective device; this will be indicated by the manufacturer.
Differential circuit breaker
In the grid connection of the TL units (transformer-less) never install a differential circuit breaker with a current limit
that is less than the maximum default current that could occur in the PV installation as a whole, in all operating
conditions.
The grounding capacity of the PV modules varies and depends on the manufacturing technology (for example, thin
film modules with cells on a metal carrier).
The PV modules used with the Ingecon
During power to grid delivery, the value of the resultant derived current from the cells to ground depends on the
module mounting configuration and also on the atmospheric conditions (rain, snow).
This derived current, conditioned by service, must not exceed the differential circuit breaker cut-off current value.
Otherwise the inverter grid connection could cause the inverter external differential to trip.
The unit should be started up manually, given the fact that the Start or Stop status does not change, even if the
equipment power is cut-off.
In the main menu, highlight the option Start/Stop and click to move from one status to the other.
AAY2000IKI02
Sun Lite U must have a coupling capacity of less than 50 nF/kWp.
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Ingeteam Inc
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