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(on the Control centre level), forward events that occur during its operation and execute billing
for the services performed. The connection also enables communication from the Control
centre towards the charging station, which enables remote access to the station for needs of
maintenance or remote control. Network connection can be executed in several different ways:
• Direct connection to the station operator's WAN network. Connection can be
established directly with a UTP cable or a fibre optic converter.
• Wireless connection. The station connects to an existing 2G/3G mobile network with an
GPRS/UMTS router built into the station.
3.2 Grid connection
The charging station can be connected directly to the electricity distribution network or to an
existing electrical installation nearby. Supply power depends on the charging power of each
socket (according to the configuration of the charging station). Current configurations require
the following supply power:
• 14,8 kW:
o 2x single-phase charging spots, maximum current 32 A per phase
• 29,4 kW:
o 1x single-phase and 1x three-phase charging spots, maximum current 32 A per
phase
• 44 kW:
o 2x three-phase charging spots, maximum current 32 A per phase
Supply power of the charging station must be dimensioned appropriately to enable
simultaneous charging of two vehicles. Charging power of each charging spot can be limited in
the settings of the charging station on the scale between 6 A and 32 A. The charging station can
also be set up to allow local power management so that when two vehicles are connected at
the same time, the available maximum power is split in half between the two vehicles
In the execution phase of the grid connection project, the following requirements need to be
met:
• Selectivity of the functioning of protection needs to be ensured;
