Hybrid switch has first dual contact-quenching chamber with fixed contact between moving contacts and driven in common with movable contact parts of second quenching chamber

摘要

The device has a first quenching chamber with a first insulating medium, preferably a vacuum chamber (10), connected to a second chamber with a second insulating medium, preferably a first SF6 gas-isolated chamber or a chamber containing another gas, and a common drive (13). The first chamber is a dual contact chamber whose fixed contact is arranged between two moving contacts (11,12) and is driven in common with the movable contact parts of the second chamber.