A substation power fault detection device

Abstract

A substation power fault detection device, belonging to the field of power fault detection, comprising a mobile seat, the top surface of the mobile seat is rotated to install a cockpit, the top surface and one side of the cockpit are open, one end of a hinged folding arm is hinged in the cockpit, and the other end of the folding arm is fixed Install the C-shaped iron core. The outer circumference of the C-shaped iron core is covered with an elastic sleeve of non-magnetic material. The outer circumference of the elastic sleeve is wound with an electromagnetic coil. The outer ring of the elastic sleeve is fixedly installed with several first wire loops of non-magnetic material. Several second wire rings are fixedly installed, and the two ends of the C-shaped iron core are respectively fixedly connected to one end of the first wire rope. One end of the same second cord. This device realizes the opening and closing of the C-shaped iron core through the expansion and contraction of the folding arm, and flexibly realizes the locking of the first wire wheel by controlling the movement of the first bar block, avoiding the setting of structures on the C-shaped iron core, and no center of gravity unstable situation.

Description

technical field [0001] The invention belongs to the field of power failure detection, in particular to a substation power failure detection device. Background technique [0002] The single-phase-to-ground fault detection technology has been continuously researched and discussed at home and abroad. The dual-frequency signal detection and positioning method has been proposed in China. Based on the different impedance properties of the faulty line and the non-faulty line, the signal current has different ratios as the criterion, which is fast and accurate. The ground fault line selection and fault point location are performed on the ground. It requires the inspector to hold the detector and move it for inspection. The work intensity is relatively large, especially when detecting overhead lines. This way of working is no longer suitable for the current unmanned maintenance. However, there is a lack of an effective and economical fault detection method, so it needs to be solved u...

AI Technical Summary

Problems solved by technology

[0002] The single-phase ground fault detection technology has been continuously researched and discussed at home and abroad. The dual-frequency signal detection and positioning method has been proposed in China. Based on the different impedance properties of the faulty line and the non-faulty line, the ratio of the signal current is different as the criterion, which is fast and accurate. Ground fault line selection and fault point location need to be carried out by inspectors holding the detector and moving it. The work intensity is relatively high, especially when inspecting overhead lines. This working method is not suitable for the current unmanned maintenance. large environment, but lacks an effective and economical fault detection method, therefore, it is urgent to solve

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