Patent ID: 11875955
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A vacuum circuit breaker comprising:
a tubular grounded tank;
an insulating rod disposed within the grounded tank to be movable in an axial direction of the grounded tank;
an operating device provided at one end portion of the grounded tank, the operating device applying a driving force in the axial direction of the grounded tank to one end portion of the insulating rod;
a drive conductor disposed within the grounded tank and connected to another end portion of the insulating rod to move together with the insulating rod;
a tubular first bushing connected to a side of the grounded tank;
a tubular second bushing connected to the side of the grounded tank at a greater distance from the one end portion of the grounded tank than the first bushing in the axial direction of the grounded tank;
bushing terminals provided at end portions of the first bushing and the second bushing opposite the grounded tank;
a first vacuum valve including a first vacuum container, a first fixed contact, and a first movable contact, the first vacuum container being provided within the first bushing, the first fixed contact and the first movable contact facing each other and being disposed within the first vacuum container;
a second vacuum valve including a second vacuum container, a second fixed contact, and a second movable contact, the second vacuum container being provided within the second bushing, the second fixed contact and the second movable contact facing each other and being disposed within the second vacuum container;
a first fixed conductor connecting the first fixed contact and the bushing terminal of the first bushing;
a second fixed conductor connecting the second fixed contact and the bushing terminal of the second bushing;
a first movable conductor electrically connected at one end portion to the first movable contact;
a second movable conductor electrically connected at one end portion to the second movable contact;
a first lever rotatably coupled at one end portion to the insulating rod, a portion between the one end portion and another end portion of the first lever being rotatably provided within the grounded tank;
a second lever rotatably coupled at one end portion to the drive conductor, a portion between the one end portion and another end portion of the second lever being rotatably provided within the grounded tank;
a first link rotatably coupled at one end portion to another end portion of the first movable conductor and rotatably coupled at another end portion to the another end portion of the first lever;
a second link rotatably coupled at one end portion to another end portion of the second movable conductor and rotatably coupled at another end portion to the another end portion of the second lever;
a first flexible conductor having a flexibility and electrically connecting the first movable conductor and the drive conductor; and
a second flexible conductor having a flexibility and electrically connecting the second movable conductor and the drive conductor.