Switch commands safely

The DSO-2 module (DSO = Distributed System Operator) enables reliable switching of commands in power networks with 1 from N monitoring, measuring circuit testing and cascading to command groups. The command relays are 2-pole and actuated via release relays.

Actuation is typically with double commands:

• 1 of n monitoring of commands (multi-stage)
• Command and release relays
• measuring circuit testing for monitoring the external contact multiplying relay coil resistance
• Individually adjustable external circuit resistors for every intermediate relay
• 2-pole variant of the command card
• individually adjustable suppression of imperfection time
• Individually adjustable post command lag time
• Cascading of multiple cards into command groups