Novel power distribution network fault positioning device

Abstract

The invention discloses a novel power distribution network fault positioning device. The novel power distribution network fault positioning device comprises a semicircle annular PCB Rockwell coil; a flexible fixing block is arranged on the inner side of the semicircle annular PCB Rockwell coil for clamping flexible fixing blocks; a PCB Rockwell coil protection housing is arranged on the outside of the semicircle annular PCB Rockwell coil; a shielding ring is arranged on the periphery of the Rockwell coil protection housing; shielding protection housings are arranged on the periphery of the shielding ring; the two shielding protection housings are hinged at a hinge point; the novel power distribution network fault positioning device also comprises a torsion spring which is connected to shielding protection housings and the torsion spring is used for making the two shielding housings enclose a ring structure; and connection holes are formed on the semicircle annular PCB Rockwell coil for connecting a coil. The novel power distribution network fault positioning device performs upgrading on a structure and a power supply mode of the fault positioning device, combines with an injection method to position a fault, improves accuracy of single-phase grounding fault positioning and shortens time of fault positioning.

Description

technical field [0001] The invention relates to the technical field of power system fault detection, in particular to a novel distribution network fault location device. Background technique [0002] Due to the complex lines and multiple network structures of my country's medium and low voltage distribution network, when a single-phase ground fault occurs in the distribution network, there are many fault characteristics, and its fault location has always been a difficult problem. However, there are currently two problems in fault location: one type of fault indication and FTU and other supporting installations to achieve fault judgment, which is costly; the other type of positioning device operates independently on the line, but most of the current information they obtain is fault The impact of the current on the fault location device is relatively large, and the single-phase ground fault cannot be located. In addition, at present in China, batteries are mainly used as the ...

AI Technical Summary

Problems solved by technology

However, there are currently two problems in fault location: one type of fault indication and FTU and other supporting installations to achieve fault judgment, which is costly; the other type of positioning device operates independently on the line, but most of the current information they obtain is fault Current, the impact on the fault location device is relatively large, and the single-phase ground fault cannot be located

At present, there are difficulties in the structure that are easy to slip and loose, and the balance is difficult to grasp

There are two problems in application. One is that the power supply mainly depends on solar energy and batteries, and the energy supply cannot be sustained and stable; the other is that the single-phase ground fault location is not accurate and timely.

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