Autonomous Static Switch

Automatic Static Switch type SKB is designed to ensure continuity of power supply to AC loads during a power line disturbance. The SKB is powered by two 3x400V AC lines: the primary line voltage and the backup line voltage.

The primary line voltage is sampled and measured continuously. If the instantaneous values of this voltage occur outside the tolerance limits, it is replaced by the voltage of the reserve source. After the return of the correct voltage of the primary line, there is an uninterruptible switching of loads from the reserve source to the primary line.

The automatic bypass SKB synchronizes the voltage of the primary line with the voltage of the reserve line. Once the voltages are synchronized, the switchover to the reserve line is carried out without any interruption in the supply of electricity consumers. The electronic bypass is equipped with a SAN8 supervision system, which provides monitoring, recording, visualization of all system operation states and alarming in case of an alarm condition, as well as signaling of alarm conditions (potential-free relay contacts).