Vacuum switch and vacuum switchgear using the same

A vacuum switch comprising:

• a first vacuum container containing therein a fixed electrode and a movable electrode of a circuit breaker;
• a second vacuum container electrically insulated from said first vacuum container and grounded, and containing therein said first vacuum container;
• and
• an insulator disposed in said second vacuum chamber and fixed both to a movable conductor connected to said movable electrode of said circuit breaker inside said first vacuum container and to a movable rod for operating said movable conductor, said movable rod being driven by an operation mechanism disposed out of said first and second vacuum containers.

A vacuum switch comprising:

• a first vacuum container containing therein a circuit breaker;
• a second vacuum container electrically insulated from said first vacuum container, containing therein said first vacuum container and grounded;
• and
• a third vacuum container connected to said second vacuum container, containing therein a disconnecting switch and grounded.

A vacuum switch comprising:

• a first vacuum container containing therein a circuit breaker;
• a second vacuum container electrically insulated from said first vacuum container and containing therein said first vacuum container and grounded;
• an insulator disposed in said second vacuum chamber and fixed both to a movable conductor connected to said movable electrode of said circuit breaker inside said first vacuum container and to a movable rod for operating said movable conductor, said movable rod being driven by an operation mechanism disposed out of said fist and second vacuum containers;
• and
• a third vacuum container connected to said second vacuum container, containing a disconnecting switch and grounded.

A vacuum switch comprising:

• a first vacuum container containing therein a circuit breaker;
• a second vacuum container electrically insulated from said first vacuum container and containing therein said first vacuum container and grounded;
• and
• a third vacuum container connected to said second vacuum container, containing a disconnecting switch and grounded,
• wherein long-directional axes of said second and third vacuum containers each are a different direction from a long-directional axis of said first vacuum container.

A vacuum switch comprising:

• a first vacuum container containing therein a circuit breaker;
• a second vacuum container containing therein said first vacuum container and grounded;
• and
• a third vacuum container connected to said second vacuum container, containing a disconnecting switch and grounded,
• wherein said second and third vacuum containers are arranged in a straight line.