公开(公告)号：US4263572A

公开(公告)日：1981-04-21

申请号：US951681

申请日：1978-10-16

申请人： Joseph Bernatt ,  Karel E. Vojta

发明人： Joseph Bernatt ,  Karel E. Vojta

IPC分类号： H01H83/20 ,  H01H73/00 ,  H01H75/02

CPC分类号： H01H83/20

摘要： A shunt trip mechanism includes a ratchet facility added to a self-contained, line potential stored-energy operating mechanism of a circuit interrupting device. Operation of the ratchet facility releases the stored energy to operate the device. A portion of the ratchet facility may also be operated to reset the device if it has previously been operated by either the shunt trip mechanism or the operating mechanism's current-responsive elements. The main portion of the shunt trip mechanism is at ground potential and is mechanically tied to and operates the ratchet facility by a movable insulated strut. The strut is moved by the shunt trip mechanism upon the occurrence of an event such as transformer overpressure. A ground level handle may be operated to reset the device whether it was operated by the operating mechanism or the shunt trip mechanism.

摘要翻译： 分路脱扣机构包括向电路中断装置的独立的线路潜在的存储能量操作机构添加的棘轮设备。 棘轮设备的操作释放存储的能量以操作设备。 棘爪设备的一部分也可以被操作以重置设备，如果其先前已经由分流脱扣机构或操作机构的电流响应元件操作。 分流脱扣机构的主要部分处于地电位，并通过可动绝缘支柱机械地连接到棘轮设备并操作棘轮设备。 在发生诸如变压器超压的事件时，支柱由分流脱扣机构移动。 可以操作地面手柄以复位装置，无论它是由操作机构还是由分流脱扣机构操作。

公开(公告)号：US4203083A

公开(公告)日：1980-05-13

申请号：US930774

申请日：1978-08-03

申请人： John C. Opfer ,  Karel E. Vojta

发明人： John C. Opfer ,  Karel E. Vojta

IPC分类号： H01H71/10 ,  H01H9/00 ,  H01H3/00

CPC分类号： H01H71/10

摘要： A bus-mountable, circuit-interrupting device, including an interrupting unit and a novel line-potential, manually-resettable operating mechanism for the unit, is usable in circuits in which faults may exceed the interrupting capability of the unit. A normally engaged pair of contacts in the unit is separable within an arc-extinguishing medium. The operating mechanism includes a robust, stored-energy operator, for separating the contacts, and a tripping mechanism, which selectively releases the stored operating energy. The tripping mechanism normally prevents release of the stored operating energy, and includes a high mechanical advantage lever-link system which permits a low latching force to counteract the stored operating energy. A ratchet-solenoid combination in the tripping mechanism selectively removes the low latching force. If a circuit fault occurs, the solenoid moves an arm past, and moves, the ratchet in a first direction, which does not remove the low latching force, but rather stores energy capable of moving the arm in a second direction. Arm movement in the second direction, which occurs immediately in the case of a fault within the interrupting capability of the interrupting unit, moves the ratchet so as to remove the low latching force, permitting the stored operating energy to overcome the latch and move the lever-link system, thereby separating the contacts. If the fault exceeds the interrupting capability of the unit, the arm moves in the first direction, but is prevented from moving in the second direction until the circuit is otherwise opened, as by an upstream protective device.

摘要翻译： 包括中断单元和用于该单元的新型线路电位手动复位操作机构的总线安装式电路中断装置可用于故障可能超过该单元的中断能力的电路中。 在灭弧介质中，该单元中的常啮合的一对触点是可分离的。 操作机构包括用于分离触点的坚固的存储能量操作器，以及选择性地释放存储的操作能量的跳闸机构。 脱扣机构通常防止储存的操作能量的释放，并且包括高机械优势的杠杆连杆系统，其允许低的锁定力抵消存储的操作能量。 跳闸机构中的棘轮 - 螺线管组合选择性地消除了低的锁定力。 如果发生电路故障，则电磁铁使臂移动并沿着第一方向移动棘轮，这不会消除低的锁定力，而是存储能够沿第二方向移动臂的能量。 在中断单元的中断能力中的故障情况下立即发生的第二方向的臂运动移动棘轮以消除低的锁定力，允许存储的操作能量克服闩锁并且移动杆 链接系统，从而分离触点。 如果故障超过设备的中断能力，则臂沿第一方向移动，但是防止其沿第二方向移动，直到电路另外打开，如上游保护装置。