Special replacement tool for outdoor 35kV PT fuses

Abstract

The invention discloses a special replacement tool for outdoor 35kV PT fuses. The tool comprises a porcelain sleeve chuck and a porcelain sleeve top disk. The porcelain sleeve chuck and the corresponding positions of the porcelain sleeve top disk are respectively provided with a bayonet. A long through hole is arranged between the bayonet and the outer edge of the porcelain sleeve top disk. The porcelain sleeve chuck is composed of two semi-circular clamp rings. One ends of the two clamp rings are articulated with each other, and the other ends thereof are removably connected by a bolt. A distance adjusting device is arranged between the porcelain sleeve chuck and the porcelain sleeve top disk. The special replacement tool has the advantages of simple structure, convenient use, safety and reliability, labor saving and high working efficiency, reduces the labor strength of workers, avoids generating other accidental conditions when the fuse is mounted and detached, guarantees the quality of the substitute fuse, replaces the fuse in a short period, ensures the electric net to run safely, stably and economically, and has strong practicality and popularization value.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment maintenance operations, and in particular relates to a special replacement tool for outdoor 35kV PT fuses. Background technique [0002] In the substation, due to various reasons such as harmonics or operation, the voltage fluctuation range of the power grid is large, and the rubber pads at both ends of the fuse are aging, and the seal is not tight. Rainwater intrusion, etc., cause more fusing times of PT fuses. Quick-change fuses guarantee normal operation in the shortest possible time with the PT function. In order to make good contact between the conductive parts at both ends of the outdoor 35kV PT fuse, the manufacturer designed the internal structure of the fuse bushing as a spring-type pressure structure at both ends, resulting in a large elastic force during replacement, and at least two people need to cooperate at high altitude to replace it. Successful, the space for high-al...

AI Technical Summary

Problems solved by technology

In order to make good contact between the conductive parts at both ends of the outdoor 35kV PT fuse, the manufacturer designed the internal structure of the fuse bushing as a spring-type pressure structure at both ends, resulting in a large elastic force during replacement, and at least two people need to cooperate at high altitude to replace it. Successful, the space for high-altitude work is small, and there are great safety hazards. When fixing the top cover, it is necessary to use manpower to offset the elastic force of the two springs at both ends. It is difficult for the staff to use force evenly. Bad, the fuse is more likely to blow, and the screw holes are often misplaced, and the top cover is difficult to fix

In addition, because the screw is too small, it often slips from the hand and falls on the ground or in the lawn, making it difficult to find and wasting a lot of time

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