公开(公告)号：US08269503B2

公开(公告)日：2012-09-18

申请号：US12450667

申请日：2008-04-16

申请人： Mario Tremblay ,  Ryszard Pater ,  Francisc Zavoda ,  Mario Germain

发明人： Mario Tremblay ,  Ryszard Pater ,  Francisc Zavoda ,  Mario Germain

IPC分类号： G01R31/08

CPC分类号： G01R31/088 ,  G01R35/00

摘要： A method of locating a fault on an electrical network energized by a source uses a form of triangulation of voltage measurements at at least three different locations on the network, with at least one of the locations situated upstream from the fault with respect to the source. Voltage phasors corresponding to the voltages measured during the fault are time synchronized. Conductors of the network involved in the fault are determined as a function of characteristics of the voltage phasors and a fault current causing a voltage drop at one of the locations with respect to an initial voltage value is evaluated. A position of the fault is evaluated at a point of the network where a ratio between a difference of the voltages measured at two of the locations and an impedance between one of the two locations and the point is equal to the fault current.

摘要翻译： 在由电源供电的电网上定位故障的方法使用在网络上的至少三个不同位置处对电压测量进行三角测量的形式，其中至少一个位置位于故障相对于源的上游。 与故障期间测量的电压相对应的电压相量是时间同步的。 评估涉及故障的网络的导体作为电压相量的特性的函数，并且评估导致相对于初始电压值的位置之一处的电压降的故障电流。 故障点的位置在网络点处被评估，其中在两个位置处测量的电压差与两个位置之一之间的阻抗与该点之间的阻抗等于故障电流之间的比率。

公开(公告)号：US20100102824A1

公开(公告)日：2010-04-29

申请号：US12450667

申请日：2008-04-16

申请人： Mario Tremblay ,  Ryszard Pater ,  Francisc Zavoda ,  Mario Germain

发明人： Mario Tremblay ,  Ryszard Pater ,  Francisc Zavoda ,  Mario Germain

IPC分类号： G01R31/08

CPC分类号： G01R31/088 ,  G01R35/00

摘要： A method of locating a fault on an electrical network energized by a source uses a form of triangulation of voltage measurements at least three different locations on the network, with at least one of the locations situated upstream from the fault with respect to the source. Voltage phasors corresponding to the voltages measured during the fault are time synchronized. Conductors of the network involved in the fault are determined as a function of characteristics of the voltage phasors and a fault current causing a voltage drop at one of the locations with respect to an initial voltage value is evaluated. A position of the fault is evaluated at a point of the network where a ratio between a difference of the voltages measured at two of the locations and an impedance between one of the two locations and the point is equal to the fault current.

摘要翻译： 在由电源供电的电网上定位故障的方法使用对网络上至少三个不同位置的电压测量进行三角测量的形式，其中至少一个位置相对于源相对于故障位于上游。 与故障期间测量的电压相对应的电压相量是时间同步的。 评估涉及故障的网络的导体作为电压相量的特性的函数，并且评估导致相对于初始电压值的位置之一处的电压降的故障电流。 故障点的位置在网络点处被评估，其中在两个位置处测量的电压差与两个位置之一之间的阻抗与该点之间的阻抗等于故障电流之间的比率。