Mainly used for batteries in some sectors
For what types of electrical equipment?
It is characterized by a continuous movement of electric charges. This means that the charges always circulate in the same direction. Direct current is produced by electrochemical or electronic generators, that is to say by all types of:
- solar panels.
For which applications?
It is particularly present in:
- on-board systems via batteries,
- railway equipment
- business sectors with specific high voltage constraints (test laboratories, etc.).
Indeed, the high voltage direct current (CCHT or HVDC in English) has for main benefit to allow the transport of electricity over long distances. It is also the only possibility for transporting electricity in buried or submarine cables over distances greater than about 100 km. It will therefore be present to supply electricity to off-shore platforms or certain ships, for example.
Objective: to discharge the batteries to increase their lifespan and ensure our safety
Depending on the different technologies, it is necessary to regularly discharge the electric batteries to allow a full charge cycle. This is to verify that the batteries are operating at full capacity.
For all types of batteries , in particular lithium-Ion, it is imperative to unload them before transporting equipment or when moving for example.
In fact, it is then essential to have previously discharged the battery in order to avoid electrification-electrocution by direct contact, the generation of sparks etc….