摘要:
The invention discloses a quick arc-breaking circuit-breaker, comprising two electrode contacts for switching on and switching off a circuit, and a plurality of partition plates arranged between the two electrode contacts and configured in such a way that, when the two electrode contacts are separated, the partition plates are inserted at the fastest speed between the two electrode contacts, to quickly break arc and stop burning. As the partition plates of the quick arc-breaking circuit-breaker are inserted between the two electrode contacts from different directions, the breaking and insulating speed is accelerated, the isolation and sealing effects between the two electrode contacts are enhanced, and the insulation and arc extinguishing effects of the circuit-breaker in working are thus improved. The circuit-breaker of the invention has a simple structure and a low manufacturing cost.
摘要:
A circuit breaker with quick response and separation and a quick response and separation method for the circuit breaker. The circuit breaker comprises a breaking contact group (10) and a joint contact group (20). The breaking contact group comprises a movable breaking contact (11). The joint contact group comprises a movable joint contact (21). A movable contact limiting device (31) used for limiting moving positions of the breaking contact and/or the joint contact is arranged between the breaking contact group and the joint contact group. The quick response and separation method for the circuit breaker comprises a breaking and opening step, wherein the breaking contact reversely moves and is separated independently ahead of the joint contact, or the breaking contact and the joint contact reversely move and are separated at the same time. The breaking contact is adopted in the circuit breaker to replace a fixed contact in the conventional art, and when the circuit breaker needs to carry out opening and breaking operation, quick separation between the contacts is realized due to two-way separation action between the breaking contact and the joint contact, so that the electric arc phenomenon can be avoided or reduced, and the service life of the circuit breaker is prolonged.
摘要:
The invention relates to a rapid tri-state bidirectional switching device with three switching states of forward, backward and idle connection positions, comprising a shell (1) and a movable electrode (2) arranged within the shell (1) for switching among the three states, wherein the movable electrode (2) is provided with a movable contact point (4) at either end thereof, the shell (1) is provided with a fixed contact point (5) at the front and rear sides thereof respectively corresponding to the movable contact points (4), a driving solenoid shaft (18) is arranged above and connected to the movable electrode housing (3), and provided with a front locking notch (11) and a rear locking notch (12), the device further comprises a release lock (9) cooperating with a front locking notch (11) and a rear locking notch (12) to lock the movable electrode housing (3). The rapid bidirectional tri-state switching device is advantageous for its short switching time, small volume and reliability in contact.