| 摘要 |
FIELD: electricity. ^ SUBSTANCE: quick-acting breaking mechanism (15) of circuit-breaker includes breaking rod (44) pivotally connected with drive module (47) and supporting bridge contact (42) at its end with respective moving contacts (43) at the opposite ends for the purpose of reswitchable connection of stationary contacts (41) of circuit breaker. Contact spring unit (48) is connected functionally with drive module to apply full pressure of closure of about 200 kg, latch (49) fixes breaking rod in open or close position after actuation of circuit breaker in order to prevent rebound. Bridge contact (42) consists of a couple of side conductors (101) maintaining at their top edges support (103) having open upper surface with moving contacts (43) at the opposite ends of support and reinforcing elements (102) inserted between side conductors (101). ^ EFFECT: limitation or switching over of fault current. ^ 22 cl, 33 dwg |
