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公开(公告)号：EP1940002A2
公开(公告)日：2008-07-02
申请号：EP07123668.1
申请日：2007-12-19
发明人： Premerlani, William , Valdes, Marcelo , Papallo, Thomas Frederick Jr., , Narel, Radoslaw , Lavoie, Gregory P.
摘要： A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a partial-differential-zone comprising a main circuit breaker and the bus-tie breaker; assigning a first value to the direction of the fault current flowing into the partial differential zone; - assigning a second value to the direction of the fault currents flowing out of the partial-differential- zone, wherein the first value is not equal to the second value; - comparing the values assigned to the fault currents; determining if the fault currents are flowing into the partial differential zone; and determining if at least two of the fault-currents is flowing in a different direction with respect to the partial-differential-zone wherein one of the fault currents is flowing into the partial-differential-zone and one of the fault currents is flowing out of the partial differential zone.
摘要翻译： 一种操作中继装置的方法，该方法包括以下步骤：提供连接主断路器的主断路器和母线断路器; 限定包括主电路断路器和母线断路器的部分差分区; 为流入偏微分区域的故障电流的方向分配第一值; - 为流出偏微分区的故障电流的方向分配第二值，其中第一值不等于第二值; - 比较分配给故障电流的值; 确定故障电流是否流入偏微分区域; 以及确定至少两个故障电流是否相对于部分微分区沿不同方向流动，其中一个故障电流流入部分微分区并且其中一个故障电流流出 的偏微分区域。
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公开(公告)号：EP1940001A2
公开(公告)日：2008-07-02
申请号：EP07123561.8
申请日：2007-12-19
发明人： Premerlani, William , Valdes, Marcelo , Papallo Jr., Thomas Frederick , Lavoie, Gregory P. , Narel, Radoslaw
摘要： A method of operating a relay device, the method comprising the steps of: computing positive-sequence first and second current-phasor for the first and second main circuit-breakers and computing currents from phasors, and the bus-tie-breaker; computing positive-sequence voltage for the bus-tie-breaker; triggering a method when at least one fault current at the bus-tie-breaker exceeds a threshold, without the presence of a fault on one of the feeders; determining whether the fault is internal or external, wherein the fault is internal if the positive-sequence current of the first and second main circuit breakers is in phase, and wherein if the positive-sequence current through the first main circuit breaker is not in-phase with the positive-sequence current through the second main circuit breaker, the fault is external to the bus; determining whether the fault is on a first or second side of the tie circuit; and locating the fault.
摘要翻译： 一种操作中继装置的方法，所述方法包括以下步骤：计算第一和第二主断路器的正序第一和第二电流相量以及来自相量和总线断路器的计算电流; 计算总线断路器的正序电压; 当总线断路器上的至少一个故障电流超过阈值时，在其中一个馈线上不存在故障的情况下触发方法; 确定所述故障是内部还是外部，其中如果所述第一和第二主断路器的正序电流同相，则所述故障是内部的，并且其中如果通过所述第一主断路器的正序电流不在 相位与正序电流通过第二主断路器，故障在总线外部; 确定所述故障是否在所述连接电路的第一侧或第二侧上; 并定位故障。
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公开(公告)号：EP1940001A3
公开(公告)日：2018-06-13
申请号：EP07123561.8
申请日：2007-12-19
发明人： Premerlani, William , Valdes, Marcelo , Papallo Jr., Thomas Frederick , Lavoie, Gregory P. , Narel, Radoslaw
摘要： A method of operating a relay device, the method comprising the steps of: computing positive-sequence first and second current-phasor for the first and second main circuit-breakers and computing currents from phasors, and the bus-tie-breaker; computing positive-sequence voltage for the bus-tie-breaker; triggering a method when at least one fault current at the bus-tie-breaker exceeds a threshold, without the presence of a fault on one of the feeders; determining whether the fault is internal or external, wherein the fault is internal if the positive-sequence current of the first and second main circuit breakers is in phase, and wherein if the positive-sequence current through the first main circuit breaker is not in-phase with the positive-sequence current through the second main circuit breaker, the fault is external to the bus; determining whether the fault is on a first or second side of the tie circuit; and locating the fault.
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公开(公告)号：EP1940002A3
公开(公告)日：2018-06-20
申请号：EP07123668.1
申请日：2007-12-19
发明人： Premerlani, William , Valdes, Marcelo , Papallo, Thomas Frederick Jr., , Narel, Radoslaw , Lavoie, Gregory P.
摘要： A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a partial-differential-zone comprising a main circuit breaker and the bus-tie breaker; assigning a first value to the direction of the fault current flowing into the partial differential zone; - assigning a second value to the direction of the fault currents flowing out of the partial-differential- zone, wherein the first value is not equal to the second value; - comparing the values assigned to the fault currents; determining if the fault currents are flowing into the partial differential zone; and determining if at least two of the fault-currents is flowing in a different direction with respect to the partial-differential-zone wherein one of the fault currents is flowing into the partial-differential-zone and one of the fault currents is flowing out of the partial differential zone.
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5.发明公开Systems and methods for monitoring electrical contacts 审中-公开Systeme und Verfahren zumÜberwachenvon elektrischen Kontakten
公开(公告)号：EP2581753A1
公开(公告)日：2013-04-17
申请号：EP12187661.9
申请日：2012-10-08
IPC分类号： G01R31/327
CPC分类号： G01R31/3274 , G01R27/205
摘要： Systems and methods for monitoring electrical contacts are provided. One method includes calculating an impedance of an electrical contact based on an electrical signal applied to the electrical contact and a measured electrical signal after passing through the electrical contact. The method also includes determining a condition of the electrical contact using the calculated impedance.
摘要翻译： 提供了用于监测电触点的系统和方法。 一种方法包括基于施加到电触点的电信号和通过电触点之后的测量电信号来计算电触头的阻抗。 该方法还包括使用所计算的阻抗确定电接触的状态。
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