The improvement of Rate of Rise of Recovery Voltage (RRRV) for an HTS breaker

High-Temperature Superconductor (HTS) breaker is a new type of breaker, which is proposed to safeguard HTS based power-engineering applications. It has advantage of less prestriking voltage effect over conventional breaker for equipment like HTS transformer. For a breaker application, saw-tooth Transient Recovery Voltage (TRV) is described by high Rate of Rise of Recovery Voltage (RRRV). In this study, the improved values of RRRV shows good prospect for safeguarding HTS equipment with the proposed breaker arc model. The obtained values exhibit that the HTS breaker arc model can achieve lower effect on the RRRV (up to 70%) by optimizing the parameters of arc and design model. The comprehensive arc model for HTS breaker plays an important role in this study to assess the interrupting efficiency and its influence on current interruption study.