Why? Small power plants must be disconnected from the grid immediately in the event of a network shutdown or network disruption to avoid any danger to people and equipment.
Function: An automatic disconnection device monitors the feed-in of energy to the 230/400V grid. In case of a power failure or disruptions by the energy supplier it is vital for small power plants to be disconnected within a few milliseconds. Monitoring the voltage and frequency and recognizing isolated (off-grid) operation are essential requirements for any automatic disconnection device.