Transcript
Electric vehicle
The charging infrastructure, essential for the safety of people and equipment
Even if users’ habits are not changed by the arrival of electric vehicles into their everyday life, they will, however, encounter unknown and potentially dangerous situations. The act of recharging an electric or hybrid vehicle is not trivial, given the power of the supply involved; handling supplies that are higher than 2kW, in private dwellings, is highly uncommon! The electrical network is interfaced with the socket and associated recharging system; for the safety of people and equipment it is essential to choose them well. Drawing on its experience in the field of protection, Schneider Electric is dedicated to providing optimal levels of safety and performance.
Standards Fixed installations CEI 60364
Conductive recharging system CEI 61851 (TC 69)
Equipment EV electrics (if it is not recharging) ISO TS 22/SC 21
Data transfer JWG CEI/ISO V2G
Connection interfaces CEI 62196 (SC 23H)
Battery cell array CEI SC 21A Battery ISO TC 22/SC 21
Types of socket Type-1
Type-2
Type-3
Phase
Single-phase
Single-phase / three-phase
Single-phase / three-phase
Current
32 A
70 A (single-phase) 63 A
32 A
Voltage
250 V
500 V
500 V
No. prongs
5
7
5 or 7
Sockets
Electric vehicle recharging modes
Mode 1: Fixed, non-dedicated socket. Electric vehicle connected to the main AC distribution network through standard plug-in connector bases (standard current: 10 A) located on the power supply side, single-phase or three-phase, with earthing power supply and protection conductors.
d ibite Proh United e in th ates f St ns o easo for r fety. sa
AC
Mode 3: Fixed, dedicated circuit-socket.
Specific connector
Electric vehicle connected to the main AC distribution network through specific connector and dedicated circuit; control and protection functions permanently installed in the installation.
AC
COM
(installed with smart device and protection device)
Mode 2: Non-dedicated socket with cable-incorporated protection device. Electric vehicle connected to the main AC distribution network through standard plug-in connector bases, single-phase or threephase, with earthing power supply and protection conductors and cable-incorporated piloting function between the electric vehicle and the control connector or panel. AC
COM
(cable-incorporated smart device and protection device)
Mode 4: CC connection. Electric vehicle indirectly connected to the main AC distribution network through a standard external charger. Control and protection functions and vehicle recharging cable permanently installed in the installation. AC
DC
(AC/CC outside vehicle)
The act of recharging an electric or hybrid vehicle is not trivial. It is even more worrying as users are not used to handling power supplies this high and, as such, are unaware of the related risks. Schneider Electric is convinced that the best way to protect users is to propose dedicated electric vehicle recharging infrastructures to them (plug / socket and recharging mode).
Type 3 socket and recharging mode 3 guaranteeing optimal levels of safety and performance for users.
The type 3 socket guarantees optimal levels of safety
Risks may originate from: • system failure (a damaged cable, a faulty or ageing installation, etc.) • wrong handling by the user (a child putting their fingers in the socket, etc.) • incorrect use (the user plugs the connector into the wrong socket, etc.)
The level of protection is identical to that of industrial-type applications An industrial-standards solution (CEI 60309), it is the only solution offering the user a level of safety in the home that is identical to the most demanding industrial applications, in particular through its mechanical and electrical robustness and through its highly tried and tested contact technology.
Protection for incorrect use The type 3 socket is IP4X on its plug (male) and socket (female) to protect any user from any incorrect use risk. An optional cover can upgrade up to IP 55 the plug and/or the socket, to protect from any risk of water and powder.
A genuine reference in countries where safety standards are the most demanding This socket has proved itself for over 20 years throughout the world and in particular in countries where safety standards are the most demanding. It is the only one to be officially authorized throughout Europe.
Child protection It is IPXXD to protect users, in particular children, against risks of electrocution.
Among the various normal charging modes, only mode 3 guarantees an optimal safety level for users and for equipment A recharging mode that meets the necessary safety requirements for handling power supplies higher than 2 kW The recharging spot is a dedicated and standardized spot, installed by a specialist and meeting electric vehicle-specific standards.
People and equipment protection is integrated in the fixed part and installed by specialists In mode 3, people and equipment protection functions are integrated in the fixed part (load controller, contactor, surge arrester, differential circuitbreaker) and installed by a specialist, thus guaranteeing compliance with the latest regulations in force. Contrary to mode 1, prohibited in several countries, in mode 3, the socket incorporates a pilot wire which ensures that the conductive parts and connectors connection is well established. Mode 2 has the same function in its mobile part (cable). In mode 2, people protection functions are integrated in the cable. If the cable is damaged, there is no guarantee that these functions will not be affected. Surge arrester protection is not integrated in the cable.
In mode 1, people and equipment safety depends on the state of the pre-existing electrical network, which may be deteriorated or not upgraded to the latest standards (in particular differential protection and lightening protection).
As well as safety, the type 3 socket and the mode 3 recharging system guarantee... ... Efficiency Developed from a widely-spread technology, the type 3 socket is the most cost-efficient and the only one to be on offer throughout the world (multi-source). Its range is highly varied. A single-phase variation incorporating the same level of safety as a three-phase may, for example, may be envisaged for a closed system, i.e. in a situation where interoperability is not required. IP4X basic protection avoids having to invest upstream in a mandatory isolating function when blanking plugs do not exist.
... Upgradeability The type 3/mode 3 socket combination is the only one that enables real energy management: opportunity to implement «vehicle-to-grid»; opportunity to adapt power supply and demand in real-time using the pilot wire dedicated to mode 3 communication; opportunity to pass on its carbon footprint to the mode 3 user; opportunity to adjust supply levels to satisfy the everyday consumption of the dwelling: load less when the available power is lower, load more when it reincreases.
... Interoperability The type 3 socket, equipped with a singleplug mould, fitting all types of vehicle, provides recharging power levels of up to 23kW AC. Standardized, mode 3 - and, by extension, mode 4 - provide total interoperability.
... Ergonomics The type 3 socket current (32A maximum) means required prong effort is reduced. Its safety level offers the user the possibility to plug in without having to take any particular precautions. In mode 3, the connector is a simple cable that is easy to handle, all protection / isolating functions are located in the fixed part.
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As standards, specifications and designs develop from time to time, always ask for comfirmation of the information given in this publication. This document has been printed on ecological paper Production and design: Schneider Electric Pictures: Schneider Electric 03-2010
