HVDC Fault Current Interruption Technology

Abstract

This paper describes the interruption principles and technology of fault current interruption in HVDC systems. First, an overview on switching in HVDC systems is provided, followed by a description of the technology of fault current interruption using HVDC circuit breakers. Then, the actual state-of-the-art of HVDC circuit breaker technology and its application is highlighted. Finally, recommendations on testing of HVDC circuit breakers and the actual status of standardization activities are discussed.