A power transmission line fault detection apparatus and method

Abstract

The embodiment of the invention discloses a power transmission line fault detection apparatus which comprises a light window, a spectroscope, an infrared image acquisition device, an ultraviolet objective lens, a wide spectrum ultraviolet optical filter, a day-blind ultraviolet optical filter, an ultraviolet detector, an image fusion processing system and an output device. The light transmitted by a transmission line is transmitted through the light window; the light of a long-wave infrared spectral band is transmitted through the spectroscope and get imaged by an infrared camera; after the light of the ultraviolet spectral band is reflected by the spectroscope, the light enters the ultraviolet objective lens and passes through the wide spectrum ultraviolet optical filter or day-blind ultraviolet optical filter and then enters the ultraviolet detector to be imaged. An ultraviolet image and an infrared image are subjected to processing by the image fusion processing system and finally output by the output device. The system realizes the all-weather detection of faults of transmission lines and solves the problem in the prior art that the fault diagnosis rate is not high and the simultaneous detection of voltage-type faults and the current-type faults can not be carried out. The system effectively improves the fault diagnosis rate. The invention also provides a transmission line fault detection method.

Description

technical field [0001] The invention relates to the field of fault diagnosis of electric power transmission equipment, and in particular to a transmission line fault detection device and method. Background technique [0002] With the rapid development of the scale of the global power grid, especially the wide application of UHV transmission technology, the problem of transmission line faults has become increasingly prominent. Quickly and accurately locate faults, find faults as early as possible, and avoid power grid paralysis is an urgent problem that every power maintenance company needs to solve. [0003] Studies have shown that the early faults of transmission lines are mostly voltage-type faults, that is, corona discharge. The wavelength range of electromagnetic waves produced by corona discharge is generally between 200nm and 500nm, and the peak wavelength of the discharge is between 340nm and 360nm. The late stage faults of transmission lines are mostly current-indu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a transmission line fault detection device and method to solve the problems in the prior art that the fault diagnosis rate is not high and the simultaneous detection of all-weather voltage-type faults and current-type faults cannot be realized

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