Title:
DEVICE FOR OPERATING CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JPS57154739
Kind Code:
A
Abstract:
A circuit breaker operating apparatus is provided which includes a frame, a rotatable closing shaft attached to the frame, a first member disposed on one end of the closing shaft for rotating the closing shaft only in one direction, a second member disposed on the other end of the closing shaft for rotating the closing shaft only in the same direction as the first member rotates, and alternately with the first member and a closing cam fixedly secured to the closing shaft which rotates pivotally about the closing shaft in the same direction as the closing shaft rotates. The circuit breaker operating apparatus also includes a spring member provided with one end fixedly secured to the frame, the other end, to the closing cam respectively. The closing cam rotates for charging closing energy into the spring member, and rotates also for discharging the closing energy charged within the spring member after having rotated in a specified constant angle. The circuit breaker operating apparatus further includes a linkage provided with one end sliding on the closing cam, a coupling shaft disposed on the frame and coupled to the other end of the linkage, which rotates depending upon the linkage movement effected by rotation of the closing cam, thereby moving movable contacts into open or closed position, and a tripping member which operates in response to a command signal based on occurrence of overcurrent of abnormalities, thereby driving the linkage.
More Like This:
| WO/2021/214235 | CIRCUIT BREAKER WITH ELECTRONIC TRIP CONTROL |
Inventors:
UNNO HIROSHI
TAKANO IKUO
TAKANO IKUO
Application Number:
JP3866881A
Publication Date:
September 24, 1982
Filing Date:
March 19, 1981
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H01H71/10; H01H3/30; H01H3/22; H01H3/42; H01H9/16; (IPC1-7): H01H71/10
Domestic Patent References:
| JPS4869061A | 1973-09-20 | |||
| JP52060763B |