Power transmission and transformation line interval maintaining device

Abstract

The present invention discloses a power transmission and transformation line interval maintaining device which comprises a fixing seat, a supporting device and a fixing device, the supporting device comprises a fixing plate arranged at one end of a connecting rod and supporting arms arranged at the front side and the rear side of the fixing plate, the connecting rod and the two supporting arms form a Y-shaped structure, and the fixing device is arranged on a mounting head. The fixing devices on the front side and the rear side are coaxially arranged, each fixing device comprises a jacking screw installed on the installation head in a clearance mode and an inner clamping plate arranged at one end of the jacking screw, the upper end of each jacking screw is in threaded connection with a connecting handle, and the upper end of each connecting handle is fixedly connected with an outer clamping plate. The front side and the rear side of the connecting rod are each provided with one supporting device, the fixing devices are arranged at the ends of the supporting devices, the wires are fixed into the fixing devices, traditional point supporting is converted into line supporting through the fixing devices on the front side and the rear side, the stability of wire spacing is enhanced, the number of mounted spacers is reduced, and the mounting efficiency of the spacer is improved.

Description

technical field [0001] The invention belongs to the technical field of spacer rods, and in particular relates to a spacer for power transmission and transformation lines. Background technique [0002] The transmission line is an important part of the power system. The transmission, distribution and use of electric energy are inseparable from the transmission line. The failure rate of the transmission line directly affects the stability of the power system. The working environment of the line is relatively complicated, and there are many factors that affect the stability of the line. Among them, the single-phase ground fault is the most common line fault in the short-circuit fault, and the two-phase short-circuit fault is the most common line fault except the single-phase ground fault. , In the transmission line, especially in the second and third-level galloping areas, the conductors will gallop due to the wind. Galloping not only causes short-circuit tripping, but also lead...

AI Technical Summary

Problems solved by technology

However, the existing spacers are all provided with a support arm with a single support at the corner of the holder, and a wire fixing device is provided at one end of the support arm. This single support arm has the disadvantage of unstable support force during use. In the peak area of ​​conductor galloping, multiple sets of spacers need to be installed to achieve the effect of conductor spacing, and conductors are often erected in the sky, especially for high-voltage transmission lines. The installation of spacers further increases the difficulty and danger of installation

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