| 摘要 |
Provided is a gas circuit breaker that can reduce control energy smaller than that in previous double motion systems and an excessive force applied to a moveable pin to achieve a highly reliable double motion system. A gas circuit breaker has a double motion mechanism unit including a driving-side connecting rod, a driven-side connecting rod, a lever to connect the rods, and a guide to define the motion of the driving-side and driven-side connecting rods. A moveable pin extends through a first grooved cam of the driving-side conencting rod, a second grooved cam of the guide, and a third grooved cam of the lever. The driving-side connecting rod operates to move the moveable pin inside the grooved cams. Thus, the lever is rotated, the driven-side connecting rod is driven opposite to the driving-side connecting rod, and the driven-side arcing contact is driven opposite to the driving-side arcing contact. |
| 主权项 |
1. A gas circuit breaker comprising
a driving-side electrode and a driven-side electrode provided in a sealed tank, the driving-side electrode and the driven-side electrode being opposed to each other, wherein the driving-side electrode has a driving-side main electrode and a driving-side arcing contact, the driven-side electrode has a driven-side main electrode and a driven-side arcing contact, the driving-side arcing contact is in connection to a controller, the driven-side arcing contact is in connection to a double motion mechanism unit, the double motion mechanism unit includes
a driving-side connecting rod for receiving a driving force from the driving-side electrode,a driven-side connecting rod in connection to the driven-side arcing contact,a lever for moving the driven-side connecting rod in the opposite direction in response to motion of the driving-side connecting rod, anda guide for defining motion of the driving-side connecting rod and motion of the driven-side connecting rod, the driving-side connecting rod has a first grooved cam, the guide has a second grooved cam, the lever has a third grooved cam, a movable pin extends through the first grooved cam, the second grooved cam, and the third grooved cam, and with motion of the driving side rod, the movable pin moves inside the first grooved cam, the second grooved cam, and the third grooved cam, the lever is rotated, the driven-side connecting rod is driven in a direction opposite to the driving-side connecting rod, and the driven-side arcing contact in connection to the driven-side connecting rod is driven in a direction opposite to the driving-side arcing contact of the driving-side electrode in connection to the driving-side connecting rod. |
