公开(公告)号：EP0223272A2

公开(公告)日：1987-05-27

申请号：EP86201744.9

申请日：1986-10-08

申请人： ABB SACE S.p.A.

发明人： Mostosi, Angelo

IPC分类号： H01H77/10

CPC分类号： H01H77/104 ,  H01H3/0253 ,  H01H71/2418 ,  H01H71/525 ,  H01H2071/2427

摘要： In a current-limiter electrical circuit breaker with contact opening by electrodynamic repulsion, comprising at least a couple of contacts inserted between a power supply terminal and a load terminal, the contact-holder arms of which form two branches substantially parallel and closely approached to each other, through which cur­rents of opposite sign flow, a control mechanism kinema­tically linked to one of the two contact-holder arms through a compound toggle lever formed by two sectors and a spring suitable to pass from one side to the other side, and vice-versa, of a dead-point position, a block­ing device for the locking of the control mechanism in its active position, and thermomagnetic devices suitable to act on a release device for the disengaging of said blocking device; the hinge connecting the two sectors of the compound toggle lever to each other is constituted by a limitedly sliding slot-pin coupling, and the second one of the two contact-holder arms is linked to said release device through a kinematic chain.

摘要翻译： 在具有通过电动排斥的接触开口的电流限制器电路断路器中，包括插入在电源端子和负载端子之间的至少一对触点，其接触保持器臂形成两个基本上平行并紧密接近的分支 另一方面，通过相反符号的电流流动的控制机构，通过由两个扇区形成的复合拨动杆和适于从一侧通过到另一侧的弹簧来运动地与两个接触保持器臂中的一个连接的控制机构， 相反，死点位置，用于将控制机构锁定在其主动位置的阻挡装置以及适于作用在释放装置上用于使所述阻挡装置分离的热磁性装置; 将复合肘节杆的两个部分彼此连接的铰链由有限滑动的槽销联接件构成，并且两个接触保持器臂中的第二个通过运动链连接到所述释放装置。

公开(公告)号：EP0152134A2

公开(公告)日：1985-08-21

申请号：EP85200082.7

申请日：1985-01-25

申请人： ABB SACE S.p.A.

发明人： Talpo, Gianpietro

IPC分类号： H01H33/04 ,  H01H1/00

CPC分类号： H01H33/12 ,  H01H1/385

摘要： In an arc contact system for electrical circuit breakers, in particular of the type using an arc extinguishing fluid, comprising a stationary contact and a movable contact, one of the two arc contacts is formed by a tubular cylindrical body bearing a hollow sleeve of arc resistant material at its end destined to cooperate with the other arc contact; and the other arc contact is formed by a substantial cylindrical rod provided with at least one central longitudinal cut, suitable to render elastically yielding in the radial direction said rod, destined to be inserted inside the tubular cylindrical body of said first arc contact.

公开(公告)号：EP0150874A2

公开(公告)日：1985-08-07

申请号：EP85200038.9

申请日：1985-01-17

申请人： ABB SACE S.p.A.

发明人： Talpo, Gianpietro

IPC分类号： H01H33/91

CPC分类号： H01H33/901 ,  H01H2033/902

摘要： The present invention relates to an electrical circuit breaker with arc extinguishing compressed fluid, in which the compression of the extinguishing fluid is caused in a mixed way, by the pneumatic action of a compressing piston solid with the movable contacts of the circuit breaker and by pressure self-generation, following the action of the electrical arc, which decomposes and heats the fluid. This compression in a mixed form takes place within a chamber provided within a movable body assembled on the stationary contact of the circuit breaker and suitable to follow, under the action of elastic means, along a certain path, the opening stroke of the movable contacts, which bear a blasting nozzle, which during said stroke path connects a zone of compression of the fluid under the action of the piston with said chamber of the movable body, and which, after the detachment from the movable body because of its stopping, allows the escape of blasts of compressed fluid, both from said chamber and from the compression zone, directed against the arc to the purpose of extinguishing it.