Modern electric vehicle charging infrastructure (EVCI) needs to deliver large currents from the grid to external car chargers / on-board chargers due to the rising battery sizes stemming from increased EV range, and due to the customer expectations for EVs to have shorter charging times on par with fueling times of fossil-fuel-based vehicles. Such an EVCI system would also need a protection device capable of rapidly interrupting large short-circuits with extremely high fault-di/dt. This digest investigates the performance of a 1kV, 500A solid-state circuit breaker (SSCB), focusing on its capabilities in interrupting large short-circuits under high fault-di/dt conditions.
