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    • 77. 发明申请
    • CIRCUIT FOR DETECTION OF CURRENT IN AN ELECTRIC CONDUCTOR TO CONTROL ELECTRONICALLY CONTROLLABLE TRIPPING DEVICES
    • 电路是否功率检测电动云台,用于控制电子设备的应税TRIP
    • WO1998013920A1
    • 1998-04-02
    • PCT/DE1997002213
    • 1997-09-24
    • SIEMENS AKTIENGESELLSCHAFTHOCHGRAEF, HolgerWEGENER, Mario
    • SIEMENS AKTIENGESELLSCHAFT
    • H02H03/08
    • G01R19/25H02H1/0007H02H1/0038H02H1/063H02H3/083
    • The invention relates to a circuit arrangement for detection of current in an electric conductor to control electronically controllable tripping devices, comprising a mains voltage supply device. The operating voltage produced by the mains voltage supply device is compared with a reference voltage and the tripping device is activated by a conventional voltage limit occurring during overload. The circuit contains a microprocessor device (MPE) for direct detection of current variables from secondary alternating current values of phase-windings (PH1,2,3) which can be connected to potential mains inputs (A1,2,3). The alternating currents can be evaluated by the microprocessor device (MPE) by means of a known reference voltage detection device (BSE) as calculated valuables that are to be treated. Such circuits can be used to control overload tripping devices in electricity supply installations.
    • 本发明涉及一种用于电流检测的电流导体的一个电路装置用于致动具有电源电压供给装置,其特征在于,通过与基准电压的电源电压供给装置产生的工作电压进行比较,电子可控制的释放装置和所述触发装置是可操作的由形成限制电压过电流的情况下连接。 该电路包括用于从所述电源电位输入端直接测定的当前变量的微处理器装置(MPE)(A1,2,3)第二相绕组的连接的交流电压的值(PH1,2,3),所述交变电压(使用已知Bezugsspannungsermittlungs- 可以评价所述微处理器装置(MPE)的装置(BSE))加工计算值。 这样的电路装置被用于在发电厂过电流跳闸装置的控制。