High-speed current-limiting switch

摘要

The current limiting switch has an arc-resistant contact arrangement (K1) in a rated current switch (S1), and two commutation paths (P1,P2) connected in parallel to the rated current switch. A first path (P1) includes a contact arrangement (KT) for an isolating switch and a power-electronic switching device (T) connected in series, and the second path includes a switch-off switch (SA) and a current limiting element (RB) connected in series. The contact arrangement (K1) of the rated current switch and the contact arrangement (KT) of the isolating switch are arranged symmetrically about a common axis (A).