Auxiliary device for installation of current transformer in central cabinet

Abstract

An auxiliary device for mounting a current transformer of a middle-arranged switchgear comprises the components of an elevator, a supporting platform, a vertical sliding table, a transverse sliding table, a turntable and a positioning unit. According to the specific mounting environment of the middle-arranged switchgear and the moving direction of a current inductor in actual operation, quick feeding and micro feeding adjustment in a vertical surface to a current inductor mounting screw hole relative to the threaded hole position in assembling maintenance are realized. Transverse feeding motion, longitudinal feeding motion and rotation motion in the horizontal surface are realized. A requirement for realizing correspondence between the current transformer threaded hole and the assembling threaded hole of the middle-arranged switchgear is satisfied through adjusting feeding in multiple directions and rotation alignment of the auxiliary device and placing the current transformer on the turntable in the mounting process. Lifting of the current transformer through manpower is not required, thereby reducing labor intensity; improving assembling reliability; shortening time length in mounting, maintenance and replacement; and shortening power-off maintenance time.

Description

technical field [0001] The invention relates to the related field of power distribution equipment in substations, and is a peripheral auxiliary device used in the installation process of power distribution equipment, specifically an auxiliary device used in the installation process of a current transformer in a central cabinet. Background technique [0002] Due to the heavy weight of the current transformer installed in the central cabinet and the small space inside the central cabinet, the replacement and installation of the current transformer takes a long time and the maintenance efficiency is low. [0003] At present, the 10 kV KYN type central switchgear has been widely used. Due to the development of electricity companies, the demand for electricity has increased significantly, resulting in an increase in the load of the current sensor in the central cabinet. The phenomenon of relatively insufficient capacity of the current transformer frequently occurs, and the freque...

AI Technical Summary

Problems solved by technology

Therefore, in the process of replacement and installation, the work intensity of the maintenance personnel is relatively high, which reduces the work efficiency and prolongs the maintenance and replacement time, which directly leads to the extension of the power outage maintenance time, which brings inconvenience to enterprises, residents and other electricity customers.

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