Interruptor chamber with mobile contact and independently movable blowing nozzle, by pass interruptor and substation with HVDC converter comprising such chamber

摘要

The chamber (1) has a movable contact (3) and a tubular shaped arc blast isolating nozzle (5) extending along a longitudinal axis (XX'). The movable contact and the nozzle are moved independent from each other such that the nozzle is displaced to a withdrawal position at which the nozzle is removed from an insulating space in which the nozzle is maintained in a confinement position (C) by acceleration of insulating gas from the chamber while opening the contact.