公开(公告)号：US09178350B2

公开(公告)日：2015-11-03

申请号：US13307740

申请日：2011-11-30

申请人： Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

发明人： Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

IPC分类号： G01R31/00 ,  H02H7/26 ,  H02H3/30 ,  G01R31/08

CPC分类号： H02H7/261 ,  G01R31/086 ,  H02H3/305 ,  Y04S10/522

摘要： A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.

摘要翻译： 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器，用于测量进入保护区的第一电流，其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器，用于测量离开保护区的第二电流，以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值，并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较，如果无功电流差大于故障阈值，则产生错误通知。

公开(公告)号：US20130138366A1

公开(公告)日：2013-05-30

申请号：US13307740

申请日：2011-11-30

申请人： Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

发明人： Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

IPC分类号： G01R19/00 ,  G01R31/00

CPC分类号： H02H7/261 ,  G01R31/086 ,  H02H3/305 ,  Y04S10/522

摘要： A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.

摘要翻译： 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器，用于测量进入保护区的第一电流，其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器，用于测量离开保护区的第二电流，以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值，并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较，如果无功电流差大于故障阈值，则产生错误通知。