Auto-Expansion Breaking in SF6 Circuit-Breakers Technical Document

This technical document explains the principles and advantages of the auto-expansion breaking technique used in SF6 circuit-breakers, a method exclusively employed by Merlin Gerin. It covers the history of MV and HV breaking techniques, details the auto-expansion method, and presents three circuit-breaker models (RM6, LF, SB6) with their performance specifications.