TDP Call 2025 Action 1: Development of a Fast High Current DC Circuit Breaker

This action concerns the development of a prototype Fast high current dc Circuit Breaker (FCB), able to interrupt in less than 1 millisecond a dc current of more than 50 kA with a reapplied voltage of more than 6 kV. Such a fast dc circuit breaker is used for the back-up protection of superconducting magnets in case of quench. Within this action, the design of an FCB with the characteristics indicated in the technical specification will be developed, and a prototype will be manufactured and tested. Stage 1: State of the Art; Stage 2: Design; Stage 3: Manufacturing and Testing.