This paper addresses different issues regarding the lightning back-flashover performance of HVDC lines, especially double-circuit configurations. In such configurations, two poles may present very similar flashover risks due to a strike, leading double flashover. Therefore, it is particular interest investigate solutions protect at least one circuit from flashovers and avoid temporary loss tran...

DC faults are critical events in a flexible high-voltage dc (HVDC) grid. Thus, ensuring that the power system returns to normal operation rapidly and reliably after fault isolation is very important. This requires HVDC breaker. In overhead line systems under temporary faults, reclosing often required. However, once circuit breaker (DCCB) reclosed directly, large second overcurrent may occur whi...

The results presented in this article relate to the study of impact gamma radiation on breakdown voltage gas-filled surge arrester manufactured by CITEL, Littelfuse and EPCOS at an operating 230 V. Radium was considered as a source research. stability well reliability arresters different manufacturers were investigated using statistical methods. This gas component operation based processes that...