Power Switchgear
AssigneeHitachi, Ltd.
InventorsJun NUKAGA, Yoshio HAMADATE, Tomohiro MORIYAMA, Yoshiaki SEYA
Life of this patent
Estimating the term…
Abstract
Disclosed is a power switch gear that includes: a fixed electrode and a movable electrode disposed opposite to each other in a tank filled with insulting gas; and a movable conductor electrically connecting the fixed electrode and the movable electrode together. The fixed electrode and the movable electrode have a contactor through which current flows to the movable conductor. At least one of the fixed electrode and the movable electrode has ring-shaped sliding members, the ring-shaped sliding members being disposed, on both sides of the contactor. At least one grease pool is provided between the contactor and the sliding members.
Claims4
A power switchgear comprising:
- a fixed electrode and a movable electrode disposed opposite to each other in a tank filled with insulting gas;
- and
- a movable conductor electrically connecting the fixed, electrode and the movable electrode together;
- wherein the fixed electrode and the movable electrode each have a contactor through which current flows to the movable conductor;
- wherein at least one of the fixed electrode and the movable electrode has ring-shaped sliding members, the ring-shaped sliding members being disposed on both sides of the contactor;
- and
- wherein at least one grease pool is provided between the contactor and the sliding members.
A power switchgear comprising:
- a fixed electrode and a movable electrode disposed opposite to each other in a tank filled with insulting gas;
- and
- a movable conductor electrically connecting the fixed electrode and the movable electrode together;
- wherein the fixed electrode and the movable electrode each have a contactor through which current, flows to the movable conductor;
- wherein the fixed electrode and the movable electrode each have ring-shaped sliding members on both sides of the contactor;
- wherein the sliding member of the fixed, electrode located close to the movable electrode is arranged in a shape tapered along an opening of the fixed electrode, the opening facing the movable electrode;
- and
- wherein at least one grease pool is provided between the contactor and the sliding members.
Dependencies are inferred from the claim text.