Novel Protection System for Electrical Systems with Limited Short-Circuit Current

This contribution describes the layout of a novel protection system for electrical systems, that are supplied by a source with limited short-circuit current capacity. This system consists of a primary analogue under voltage protection device for ac voltages, programmable solid-state power controllers and a central control logic. Possible application scenarios are described for the protection system. An initial single phase prototype is presented, which is used to test the basic protection features.