DC vacuum circuit breaker

• DOI: 10.1049/oap-cired.2017.0229
• Publication Date: 2017-11-21T18:24:59Z
• Authors: Lars Liljestrand; Magnus Backman; Lars Jonsson; Marco Riva; Edgar Dullni
• Keywords: Transient recovery voltage; Distribution board; High Voltage

In the last years progressive increase of distributed and non-programmable energy sources arise interest in use DC for medium-voltage distribution systems. The study focuses on design considerations apparatus required to support management protection these applications. fault-handling techniques system is introduced definition main requirements circuit breakers supported by computer simulations short-circuit current interruptions. A breaker designed 12 kV 2.5 kA nominal 15 interrupted presented. functionalities performances are illustrated means experimental results obtained from high power tests.