Mobility - EV charging stations

1. Standard Connection Diagram

The Climkit Mobility system involves the installation of smart charging stations that communicate with the Climkit Gateway via the OCPP protocol.

Through this communication and the installation of continuously read meters, the Climkit Gateway can regulate the available power allocated to the charging stations and also manage user access via RFID badge identification.

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Connection in a RCP

In a Climkit RCP (see Community - Electrical Metering - RCP), a meter is installed for each distribution zone feeder (flat cable). This meter is never installed behind the common area meter.

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I/O Module Connection

The I/O Module is used to detect a command from the DSO meter for load shedding of the charging stations.

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2. Connection Diagram - One Car Park and Multiple Inputs

When multiple grid inputs are available for the same car park, each flat cable feeder (63A) is taken from each input.

A single gateway and 4G router are required. Control meters for power regulation are connected to the gateway via an RS485 bus or IP-Ethernet using RS485-Ethernet converters.

Option A: Charging station feeders from the DSO common area meter

In the diagram below, there are 2 flat cable feeders taken from behind the common area meter of each building.

In this case, a Climkit meter for power regulation must be installed on the common area feeder!
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Option B: Charging station feeders from a dedicated DSO meter

In the diagram below, there are 2 flat cable feeders taken from behind a dedicated DSO meter for the charging stations for each building. It is therefore not necessary to install a Climkit meter on the common area feeder.

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See the charging stations

3. Flat Cable in Collective Car Parks

For small installations, the few charging stations can be connected individually to the building's electrical panel and connected via Ethernet or Wi-Fi.

However, for larger car parks, it is recommended to install a flat cable to bring electricity to each parking space, thus facilitating the installation of a charging station as residents wish to equip themselves.

This is what level C1 of SIA 2060 recommends.

sia2060_c1.png

We recommend installing a 5x16mm2 flat cable from Woertz or Wieland along the parking spaces to be equipped.

The cable is fixed directly to the wall or ceiling using clamps.

Thanks to IP65 insulation-piercing junction boxes, the charging stations are then easily connected without cutting or stripping the cable.

The flat cable is supplied via a 3P+N circuit breaker of max 63A from the electrical panel (provided by the electrical installer).

Although the number of charging stations per zone is unlimited, it is recommended not to connect more than 30.

Each charging station is then equipped with an RCD type A of 16 (11 kW) to 32A (22 kW) and connects to the management system via Wi-Fi.

Flat Cable Installation Example

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