Method and device for quickly locating faults of overhead line on basis of time synchronization

• Main Authors: ZHAO YANHUA, CHEN ZONGJUN, YU JINGYUE, YANG CHUNLEI, LI GUIYI, WANG ZENGJUN, LI ZUXIANG, YANG XUEJIE, WANG FENGWEI
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2012
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

A method and a device for quickly locating faults of an overhead line on the basis of time synchronization belong to the technical field of intelligent grid distribution automation. The method for quickly locating the faults of the overhead line on the basis of time synchronization comprises a distribution overhead line and a master station and is characterized in that a plurality of distribution data collection units arranged on the distribution overhead line collect voltage signals of the distribution overhead line and current signals of each branch through the time synchronization technology, collected data with time labels are transmitted back to the master station to achieve calculation and judgment on the branch where the faults happen, and position information of a fault interval and the fault state of a line are displayed. The device consists of the distribution data collection units, a time reference unit, a communication system and a master station system. By utilizing the method, the device can aut