Trouble shooting and locating method for power distribution network

Abstract

The invention provides a trouble shooting and locating method for a power distribution network. The method includes steps of 1, current information is obtained and sent to an information collecting unit; the information collecting unit collects preset current data information of a power distribution terminal and sends the data information together with the collected current information to a data analyzing unit; 3, the data analyzing unit compares the collected data and obtains a data level corresponding to optical signals; 4, a fault locating module collects a fault level and fault analysis information after judgment and performs analysis and locating according to the received data information and displays the information after locating through a fault display unit; 5, when the fault level surpasses a preset range or the fault locating module cannot locate the fault, an alarm device sends out an alarm. The method provided by the invention can be used for locating fault reasons and fault locations accurately, time of power interruption for maintenance is reduced, equipment utilization rate and operation reliability are improved and maintenance cost is reduced at the same time.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a method for finding and locating faults in a distribution network. Background technique [0002] my country's distribution network has the characteristics of complex line structure, diverse environment, frequent and complex faults, and heavy maintenance workload. If a fault occurs in a certain section of the distribution line, it is necessary to check the location of the fault one by one. Not only is the work intensity high, but it will also delay the repair time and affect the reliability of power supply. The normal use and service life of power grid terminal equipment such as meters have a great impact. At present, the grid voltage fluctuates greatly, especially in rural areas, the grid voltage fluctuates even more; too high grid voltage often shortens the service life of grid terminal equipment, and sometimes even burns grid terminal equipment; while too low The grid vo...

AI Technical Summary

Problems solved by technology

If a fault occurs in a certain section of the distribution line, it is necessary to check the location of the fault one by one. Not only is the work intensity high, but it will also delay the repair time and affect the reliability of power supply. The normal use and service life of power grid terminal equipment such as meters have a great impact

At present, the grid voltage fluctuates greatly, especially in rural areas, the grid voltage fluctuates even more; too high grid voltage often shortens the service life of grid terminal equipment, and sometimes even causes grid terminal equipment to burn out; and too low The grid voltage may cause the grid terminal equipment to fail to work normally

The current detection system and its detection method can only roughly detect the fault range, and cannot timely and effectively confirm the fault cause and fault point and analyze and locate it.

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