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    • 3. 发明申请
    • RESIDUAL CURRENT OPERATED CIRCUIT BREAKER
    • 残留电流断路器
    • WO2003001641A2
    • 2003-01-03
    • PCT/EP2002/007046
    • 2002-06-21
    • ABB SERVICE S.R.L.AMADORI, ClaudioCOLOMBO, Franco
    • AMADORI, ClaudioCOLOMBO, Franco
    • H02H3/33
    • H02H3/334H02H1/04H02H3/006
    • A residual current operated circuit breaker for protection against a ground leakage current that is higher than a preset threshold value in a low-voltage electric circuit, the circuit being connected to a ground electrode and supplying at least one load connected to the ground electrode by means of a protection conductor, comprising: -a supplemental conductor, suitable to be functionall y connected, in input to the circuit breaker, to the ground electrode and, in output from the circuit breaker, to the load protection conductor; -sensing means, which are functionally associated with the supplemental conductor and the active conductors and are suitable to detect the presence of a ground leakage current in the active conductors and/or in the supplemental conductor and to provide an actuation signal that causes the intervention of the release unit and the separation of the contacts when the value of the leakage current in the active conductors, reduced by a predefined quantity that is proportional to the leakage current flowing, if any, in said supplemental conductor, exceeds said threshold value.
    • 一种用于在低电压电路中防止高于预设阈值的接地漏电流的剩余电流操作断路器,该电路连接到接地电极,并通过装置提供连接到接地电极的至少一个负载 保护导体,包括: - 辅助导体,适于在断路器的输入中连接到接地电极,并且在断路器的输出中连接到负载保护导体; 传感装置在功能上与补充导体和有源导体相关联,并且适合于检测有源导体和/或补充导体中的接地漏电流的存在并提供致动信号,该致动信号导致 当所述有源导体中的泄漏电流的值减小与所述补充导体中的泄漏电流(如果有的话)成比例的预定量)的值超过所述阈值时,所述释放单元和所述触点的分离。
    • 4. 发明公开
    • RESIDUAL CURRENT OPERATED CIRCUIT BREAKER
    • 故障断路器
    • EP1435127A2
    • 2004-07-07
    • EP02748822.0
    • 2002-06-21
    • ABB Service S.r.l.
    • AMADORI, ClaudioCOLOMBO, Franco
    • H02H3/33
    • H02H3/334H02H1/04H02H3/006
    • A residual current operated circuit breaker for protection against a ground leakage current that is higher than a preset threshold value in a low-voltage electric circuit, the circuit being connected to a ground electrode and supplying at least one load connected to the ground electrode by means of a protection conductor, comprising: -a supplemental conductor, suitable to be functionall y connected, in input to the circuit breaker, to the ground electrode and, in output from the circuit breaker, to the load protection conductor; -sensing means, which are functionally associated with the supplemental conductor and the active conductors and are suitable to detect the presence of a ground leakage current in the active conductors and/or in the supplemental conductor and to provide an actuation signal that causes the intervention of the release unit and the separation of the contacts when the value of the leakage current in the active conductors, reduced by a predefined quantity that is proportional to the leakage current flowing, if any, in said supplemental conductor, exceeds said threshold value.