Distribution network line fault detection method based on integrated distribution box and high-voltage sensor

Abstract

The invention discloses a distribution network line fault detection method based on an integrated distribution box and a high-voltage sensor, and the method comprises the steps: 1, the sensors are installed on an A phase, a B phase and a C phase of a corresponding line, and the collected data are transmitted to a collection module through wireless transmission; 2, a collection module is responsible for operating three phases of sensor data, judging the fault type and the fault point section of an actual line on site, and transmitting a final calculation result or line parameters to the comprehensive distribution box in real time through wireless transmission; 3, the comprehensive distribution box wirelessly transmits a calculation result or line parameters to a main station. The technicalproblems that in the prior art, a fault positioning system based on a fault indicator, especially a transient wave recording type fault indicator, is widely applied, but a fault indicator product cannot achieve on-site accurate judgment of a single-phase grounding fault, and the grounding fault detection accuracy is low are solved.

Description

technical field [0001] The invention belongs to the distribution automation technology, and in particular relates to a distribution network line fault detection method based on an integrated distribution box and a high-voltage sensor. Background technique [0002] As an important part of modern distribution network management system, distribution automation is a necessary condition for realizing intelligent distribution network and an effective means to improve power supply reliability and operation management level. With the deepening of the transformation of rural power grids, a large number of integrated distribution boxes have been used in rural power lines and various distribution station areas. It is designed to meet the requirements of power distribution, metering, protection, and reactive power compensation of capacitors. However, at present, all the 10KV side of the integrated distribution box only have drop-out fuses, arresters, etc., and there is no supporting mo...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a distribution network line fault detection method based on an integrated distribution box and a high-voltage sensor to solve the existing fault location system based on a fault indicator, especially a transient recorder type fault indicator It has been widely used, but fault indicator products cannot accurately judge single-phase ground faults on the spot, and the accuracy of ground fault detection is low and other technical problems

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