公开(公告)号：US4308565A

公开(公告)日：1981-12-29

申请号：US038514

申请日：1979-05-14

申请人： Ivan de Mesmaeker ,  Peter Muller

发明人： Ivan de Mesmaeker ,  Peter Muller

IPC分类号： G01R27/16 ,  H02H3/38 ,  H02H7/30 ,  H02H3/28

CPC分类号： H02H7/30 ,  G01R27/16 ,  H02H3/382

摘要： A method and apparatus for fault direction determination is disclosed wherein a capacitor is connected in series in a line or network having a relay arrangement or scheme possessing directional and distance characteristics. To prevent faulty tripping of the relay arrangement, caused by the effect of the series capacitance in the line, the relay arrangement is structured such that the integrity of the directional characteristics thereof is maintained. Positive tripping of the relay is maintained, especially in the event of near faults which usually are most affected by the action of the series capacitance.

摘要翻译： 公开了一种用于故障方向确定的方法和装置，其中电容器串联连接在具有定向和距离特性的中继装置或方案的线路或网络中。 为了防止由于串联电容在线路中的作用引起的继电器装置的故障跳闸，继电器装置被构造成使得其方向特性的完整性得以维持。 保持继电器的正跳闸，特别是在通常受串联电容的作用影响最接近的故障的情况下。

公开(公告)号：US4317151A

公开(公告)日：1982-02-23

申请号：US104170

申请日：1979-12-17

申请人： Ivan de Mesmaeker ,  Peter Muller

发明人： Ivan de Mesmaeker ,  Peter Muller

IPC分类号： G01R31/08 ,  H02H3/38 ,  H02H7/26 ,  H02H3/18

CPC分类号： G01R31/085 ,  H02H3/382 ,  H02H7/262

摘要： With heretofore known directional comparison protection systems working with fault direction detectors at both ends of a line section which is to be protected and data transmission between both end stations as well as transmitters and receivers and comparison-evaluation devices for narrowing or sectionalizing the location of the fault site with respect to the line section to be protected, the reliability of such sectionalizing procedure, especially in the case of faults near to an end station, when working with series capacitors or capacitance, is dependent upon the response of the protective gap of such capacitors. With non-response there are produced transient oscillations which can falsify the directional determination. The invention solves this problem by using distance protective relays as the fault direction detectors with line replica or image impedance, which can be switched in the sense of a zone staggering protection. The image impedance for the directional comparison protection is set greater than the impedance of the line section to be protected, preferably is approximately equal to the forward network impedance of the relevant station.

摘要翻译： 使用迄今为止已知的方向比较保护系统，其工作在待保护的线路部分的两端的故障方向检测器和两个端站之间的数据传输以及发射机和接收机以及用于缩小或分段的位置的比较评估装置 相对于要保护的线路段的故障位置，当使用串联电容器或电容时，这种分段程序的可靠性，特别是在靠近端站的故障情况下的可靠性取决于这样的保护间隙的响应 电容器 在不响应的情况下，产生瞬态振荡，这可以伪造方向测定。 本发明通过使用距离保护继电器作为具有线路复制或图像阻抗的故障方向检测器来解决这个问题，其可以在区域交错保护的意义上切换。 方向比较保护的图像阻抗设定为大于要保护的线路段的阻抗，最好大致等于相关站的正向网络阻抗。