| MONITOR | 1/2016 Connection of charging stations for electric vehicles Electromobility is gaining ground. It is not yet clear when electricity will power the majority of passenger vehi- cles. However, one thing is certain: at some point, almost every vehicle will be powered electrically. This will require a large number of suitable charging stations to charge these electric vehicles with power from the national grid. The comparatively high-power requirements of charging stations and the need to consider issues associated with 'simultaneity factors' present serious challenges to energy providers and grid distribution operators. Yet more aspects need to be taken into consideration when connecting charging stations to domestic networks to avoid risk to users or to the upstream electrical system. Depending on the electric vehicle model and the charging station used, charging procedures can be sub-divided into different modes. A key differentiating factor is the level of electrical power available (currently ranging from 3.7 kW to 22 kW). 56 1/2018 | MONITOR | Connection of an electric vehicle to the AC mains power supply using a detachable charging line set with vehicle coupling and an AC power supply installation. B1: Charging line, connected to a household or industrial socket B2: Charging line, connected to a specific charging station Flexible line On-board charger Drive battery Electrical vehicle plug Protective conductor connection Electrical vehicle connector system Plug Vehicle coupling Charging station Connection case B1 Household/ industrial socket Socket Plug Connection case B2 EVSE (Electric Vehicle Supply Equipment) Connection case B2 ractical Page A Expertise Figure based on a diagram from DIN EN 61851-1 (VDE 0122-1):2012-01