| 摘要 |
<p>#CMT# #/CMT# The device has a vacuum cartridge (6) branch-connected with line-side and load-side stationary contacts (1, 2) and a rotating/sliding main movable contact (3) of a main electric circuit. The cartridge has a rod (10) passing via an enclosure (7) and supporting a movable contact (9) of the cartridge. A vacuum cartridge operating mechanism is actuated by the main contact, and actuates the rod. The mechanism has a rigid rotating rocker arm (12) connecting the rod and the main contact. The arm has articulation regions around which the arm is rotated during opening and closing operations of circuit. #CMT#USE : #/CMT# Current breaking device e.g. medium voltage breaking device (claimed) such as electric switch, for performing breaking and isolation of electric circuits. Can also be used for an electric circuit breaker. #CMT#ADVANTAGE : #/CMT# The rigid rotating rocker arm includes the articulation regions around which the arm is rotated during opening and closing operations of the main electric circuit, thus enabling the arm to fully intercept the main movable contact in one direction and to be moved by the main movable contact without retracting in front of the main movable contact in another direction of movement, and hence simplifying the structure of the breaking device. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of an electric circuit in opened and closed states. 1 : Line-side stationary contact 2 : Load-side stationary contact 3 : Rotating/sliding main movable contact 6 : Vacuum cartridge 7 : Enclosure 9 : Movable contact 10 : Rod 12 : Rigid rotating rocker arm.</p> |
