VACUUM SWITCHING APPARATUS INCLUDING FIRST AND SECOND MOVABLE CONTACT ASSEMBLIES, AND VACUUM ELECTRICAL SWITCHING APPARATUS INCLUDING THE SAME

摘要

A vacuum switching apparatus includes a vacuum envelope; a fixed contact assembly partially within the vacuum envelope; a first movable contact assembly partially within the vacuum envelope; a second movable contact assembly partially within the vacuum envelope; a first bellows within the vacuum envelope and cooperating with the first movable contact assembly to maintain a partial vacuum within the vacuum envelope; and a second bellows within the vacuum envelope and cooperating with the first movable contact assembly and the second movable contact assembly to maintain a partial vacuum within the vacuum envelope.