Fault location method and device for distribution line
A distribution line and fault location technology, which is applied in the direction of fault location, fault detection according to conductor type, information technology support system, etc., can solve the problem that the fault point of power distribution line is not easy to determine, etc., to save time for fault repair, fast and accurate Find and improve the effect of power supply efficiency
Active Publication Date: 2019-08-06
云南电力试验研究院(集团)有限公司 +1
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[0005] This application provides a fault location method and device for power distribution lines to solve the problems that the fault points of power grid distribution lines are not easy to determine and the scope of staff investigation is large, improve power supply efficiency and save maintenance time
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Embodiment 1
[0118] This embodiment mainly enumerates the situation of the faults occurring on the two lines, and the remote signaling action information of the fault indicator is shown in Table 1 below:
[0119]
[0120]
[0121] Table 1 Fault indicator remote signaling action information table
[0122] In the first embodiment, the preset period is determined to be 10 minutes. Simultaneously locate the ground fault of line 1, the short-circuit fault of line 2 and the short-circuit fault of line 1: 1. Obtain the remote signaling data sent by the fault indicator within the time range from 13:44:05 to 13:54:05 one by one, until 13 :54:05 to execute the ground fault location of line 1, and regularly collect all ground fault remote signaling action information on line 1 within the time range from 13:44:05 to 13:54:05; 2. Obtain one by one at 13:45: The remote signaling data sent by the fault indicator in the time range from 11 to 13:55:11, execute the short circuit fault location of lin...
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The application discloses a method and apparatus for fault location of a distribution line. Remote signalling data sent by fault indicators within a current preset period and a previous preset period are obtained; a complete sequence is determined according to logical positions of all the fault indicators; according to the logical positions of the fault indicators generating remote signaling motions, a motion sequence is determined; according to the complete sequence and the motion sequence, a complete path sequence is obtained and thus the position of a fault at the distribution line, fault occurrence time, the fault type, and the fault indicator failing to report the fault are determined. According to the method and apparatus disclosed by the invention, fault location is carried out according to the logic position of the fault indicator and other information of the fault also can be determined, so that the automatic analysis level and the analysis efficiency of fault information can not be improved and rapid location of the distribution line fault can be realized. Therefore, the staff can carry out fault checking and elimination conveniently; a fault point can be found out rapidly and accurately; the fault repairing time of the grid can be saved; and the power supply efficiency can be improved.
Description
technical field [0001] The present application relates to the technical field of electric power communication, and in particular to a fault location method and device for distribution lines. Background technique [0002] At present, both home and abroad are actively planning and building smart grids. The core connotation of smart grids is to realize the informatization and automation of power grids. The basis of realizing the smart grid is to monitor and transmit all-round data on the grid, and use these data to manage the grid and realize the automatic control of the grid. Through advanced sensing and measurement technology, control technology and decision support system technology, the power grid can be managed in real time, so that power generation, power transmission, power distribution and power consumption are interactive and interoperable, making the power grid a self-testing and self-healing smart grid, realizing Smarter power supply and distribution make the use of...
Claims
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IPC IPC(8): G01R31/08
CPCG01R31/086Y04S10/52
Inventor 梁仕斌田庆生何磊翁绍辉
Owner 云南电力试验研究院(集团)有限公司