Method and apparatus for detecting internal surface of dry hollow reactor

Abstract

The invention relates to a detection method and a detection device for the inside surface of a dry type air core reactor, belonging to the electric power equipment detection technical field. A device of the prior art has high manufacturing cost, low image resolution, large detection labor intensity, low detection efficiency and inaccurate detection result, and is greatly affected by personal factors. A photoelectric imaging system is perpendicular to an opening of the dry type reactor in uniform velocity through a driving belt by adoption of a mechanical transmission system and simultaneouslyconverts an image on the inside surface of the opening into a video signal which is then transmitted to a computer image processing system through a cable for image processing, wherein, the image processing process comprises image acquisition and image screening. The detection method and the detection device can be applied to on-site detection of the insulation defect of the inside surface of thedry type air core reactor.

Description

Method and device for detecting inner surface of dry-type air-core reactor technical field The invention relates to a detection scheme for power transmission and transformation equipment, which uses optical electromechanical technology and computer information processing technology to realize automatic and intelligent detection of insulation defects on the inner surface of a reactor, and belongs to the technical field of power equipment detection. Background technique The reactor used in the power system is an air-core coil without magnetic material. Its function is to compensate the reactive power of the system and to limit the short-circuit current. When a short circuit occurs in the power system, a huge short-circuit current will be generated. If it is not limited, it is very difficult to maintain the dynamic and thermal stability of electrical equipment. In order to meet the interrupting capacity requirements of some circuit breakers, a reactor is often connected in se...

AI Technical Summary

Problems solved by technology

During the process of manufacturing, transportation, installation and use of the reactor, insulation defects may occur due to internal surface dirt, burrs, poor contact, etc. Under the influence of the inner surface insulation layer will appear aging and cracks, resulting in insulation defects

The insulation defect will cause branch discharge on the inner surface of the reactor, cause reactor failure, and threaten the operation safety of the power system. Therefore, it is necessary to regularly detect the inner surface of the reactor

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