公开(公告)号：US4761704A

公开(公告)日：1988-08-02

申请号：US945540

申请日：1986-12-23

Applicant: Didier Fraisse ,  Pascal Dudon ,  Paul Tripodi

Inventor： Didier Fraisse ,  Pascal Dudon ,  Paul Tripodi

IPC: H02H3/08 ,  H02H3/04 ,  H02H3/05

CPC classification number: H02H3/044

Abstract: A test circuit simulates the operation of a multipole electrical circuit breaker, and includes a pair of auxiliary terminals connected by a connection circuit to the input terminals of a bridge rectifier cell whose output is connected in parallel with the respective outputs to two other rectifier cells associated with current transformers. A first resistor delivers a first signal proportional to the maximum intensity of the mains currents. Diodes cooperate with a second measuring resistor of a residual earth leakage current discriminator. Reversing the direction of the test current flow in the test circuit is performed by simply changing the polarity of the test terminals, and enables overcurrent protection and earth leakage protection of the electronic trip device to be checked separately.

Abstract translation: 测试电路模拟多极电路断路器的操作，并且包括一对辅助端子，其通过连接电路连接到桥式整流器单元的输入端子，该桥式整流器单元的输出端与相应的输出并联连接到两个其他整流器单元相关联 与电流互感器。 第一个电阻器提供与电源电流最大强度成比例的第一个信号。 二极管与残留接地漏电流鉴别器的第二测量电阻器配合。 通过简单地改变测试端子的极性来反转测试电路中测试电流的方向，并分别检查电子跳闸装置的过流保护和漏电保护。

公开(公告)号：US5029301A

公开(公告)日：1991-07-02

申请号：US544417

申请日：1990-06-27

Applicant: Jean-Pierre Nebon ,  Pascal Dudon ,  Patrick Coudert ,  Robert Morel

Inventor： Jean-Pierre Nebon ,  Pascal Dudon ,  Patrick Coudert ,  Robert Morel

IPC: H01H75/00 ,  H01H73/04 ,  H01H77/00 ,  H01H77/10

CPC classification number: H01H77/104 ,  H01H1/2041 ,  H01H1/2058 ,  H01H2001/223 ,  H01H73/045

Abstract: A limiting circuit breaker comprises an electrodynamic repulsion contact system, and an electromagnetic latch arranged in the vicinity of the contact system, and electrically insulated from the latter. Actuation of the latch to the active position results from the action of the electromagnetic field due to a short-circuit current flowing in the pole, so as to temporarily keep the movable contact open after repulsion. The latch is equipped with a pair of ferromagnetic brackets, and with a spring blade to return to an inactive position.

Abstract translation: 限制断路器包括电动斥力接触系统和布置在接触系统附近的电磁锁，并且与其电绝缘。 闩锁到活动位置的致动是由于在极中流动的短路电流引起的电磁场的作用，以便在排斥之后暂时保持可动触点断开。 闩锁配备有一对铁磁支架，并且具有弹簧片以返回到非活动位置。