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    Circuit breaker for protecting an electrical system
    1.
    发明公开
    Circuit breaker for protecting an electrical system 有权
    Trennschalter zum Schutz eines elektrischen系统

    公开(公告)号：EP2660843A1

    公开(公告)日：2013-11-06

    申请号：EP12425084.6

    申请日：2012-05-04

    申请人： Gefran S.p.A.

    发明人： Bellini, Giorgio ,  Claudani, Ugo

    IPC分类号： H01H71/12 ,  H01H83/10 ,  H02H7/22

    CPC分类号： H02H3/38 ,  H01H71/123 ,  H01H83/10 ,  H02H3/085 ,  H02H3/20 ,  H02H5/048 ,  H02H7/222

    摘要： The invention relates to a circuit breaker (100) for protecting an electrical system (10). The circuit breaker comprises a semiconductor switching element (T1) with a first (1) and a second (2) electrical terminal connected to a mains supply line (LIN) and a control terminal (3). Such switching element (T1) is controlled by enabling/disabling a control signal (S) applied to the control terminal (3) for switching between an open/closed status and a closed/open status for connecting/disconnecting at least one load (LD) to/from the supply line (LIN). Moreover, the circuit breaker comprises a drive (DV) adapted to enable/disable the control signal (S).
    The circuit breaker (100) is characterised in that it comprises:
    - a current limiting circuit (200) operatively associated with the mains supply line (LIN) configured for sending a first signal (S1) to the drive (DV) for disabling the control signal (S) switching the switching element (T1) from the closed status to the open status subsequent to the detection of a current value (Icc) indicative of a failure in the system;
    - a voltage regulator circuit (300, 400) connected to the first (1) and to the second (2) electrical terminal, comprising:
    dissipation means (300) of an electrical energy stored on the mains supply line (LIN) subsequent to the switching of the switching element (T1) from the closed status to the open status,
    means (400) for limiting a failure voltage between the first (1) and the second (2) terminal generated by peak values of the failure current (Icc).


    Moreover, the circuit breaker comprises an overheating safety circuit of said first (1) and second (2) electrical terminal caused by a non conforming clamping of the electrical wires connected to such terminals.

    摘要翻译： 本发明涉及一种用于保护电气系统（10）的断路器（100）。 断路器包括具有连接到主电源线（LIN）和控制端子（3）的第一（1）和第二（2）电端子的半导体开关元件（T1）。 这样的开关元件（T1）通过使能/禁止施加到控制端子（3）的控制信号（S）来控制，用于在打开/关闭状态和用于连接/断开至少一个负载（LD ）到/从供应线（LIN）。 此外，断路器包括适于启用/禁用控制信号（S）的驱动器（DV）。 断路器（100）的特征在于，其包括： - 限流电路（200），其与所述主电源线（LIN）可操作地相关联，所述电源线（LIN）被配置为向所述驱动器（DV）发送第一信号（S1）以禁止所述控制 信号（S）在检测到指示系统故障的当前值（Icc）之后将开关元件（T1）从闭合状态切换到打开状态; - 连接到所述第一（1）和所述第二（2）电端子的电压调节器电路（300,400），包括：在所述主电源线（LIN）之后存储的电能的散热装置（300） 开关元件（T1）从闭合状态切换到打开状态，用于限制由故障电流（Icc）的峰值产生的第一（1）和第二（2）端子之间的故障电压的装置（400） 。 此外，断路器包括由连接到这些端子的电线的不合格夹紧引起的所述第一（1）和第二（2）电端子的过热安全电路。