A damping spacer

Abstract

The invention discloses a damping spacer, and relates to the improvement of the damping spacer. Each wire clamp acts synchronously so as not to change the form of an electric field. The damping spacer comprises a frame plate with three, four, five, six or eight frame corners and the wire clamps at the frame corners, wherein a chute is formed at a position from each frame corner of the frame plate to the centre of the frame plate; the width of the chute is more than that of the wire clamp, so that the wire clamp can deflect while sliding in the chute; the centre of the frame plate is movably connected with a rotating disk; the rotating disk is provided with a disk corner corresponding to each frame corner of the frame plate; and one end of the wire clamp facing the centre of the frame plate is hinged with the disk corner through a hinge pin. The spacer changes the conventional connection form that the wire clamps are hinged with the frame plate respectively, so that each wire clamp is connected to one rotating disk to ensure that the slight swing of each wire clamp is synchronous during wind shake, namely the shape of the electric field is not damaged. Thus, a corona field produced due to the damage to the shape of the electric field is prevented. The damping spacer has the advantages of promoting the improvement of split conductor technology and further improving the safety and the quality of power transmission.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electric fittings, and relates to a damping spacer rod. Background technique [0002] Wire splitting is a wire erection method adopted by EHV transmission lines to suppress corona discharge and reduce line reactance. That is, each phase conductor is composed of several sub-conductors with smaller diameters, and each sub-conductor is spaced at a certain distance and arranged in a symmetrical polygon. The spacer is the main fitting in the split wire structure. There are several main types such as three, four, five, six and eight splits in different applications. The basic tasks of the spacer are: (1) to suppress the vibration of the breeze; (2) to prevent the whipping between the wires; (3) to suppress the oscillation of the sub-gap. At present, damping spacers are the most used, because damping spacers have better vibration absorption performance than rigid spacers. [0003] However, ...

AI Technical Summary

Problems solved by technology

However, when the spacer is used, it will form such as figure 2 The electric field in the form of a midpoint line has a high intensity. Due to the gravity of the wire itself, the direction of the wind shock, etc., the shape of the electric field will change during work, that is, it will become an irregular triangle, resulting in the destruction of the uniform electric field. Corona phenomenon, which affects the performance of fittings and may eventually lead to power transmission accidents

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