Principle:
In an electric power system, switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment and high-voltage power lines.
In SF6 switchgear, the current interruption in a high-voltage circuit breaker is obtained by separating two contacts in a medium gas, such as sulfur hexafluoride (SF6).
According to customer needs, T-DRILL has developed the collaring cell for SF6 switchgear houses. After T-DRILL process, they are ready for next step (end flanges welding) in SF6 switch-gear production.