Damping spacer with unequal arm lengths

A technology of spacer rods and equal arm lengths, applied in the installation of cables, devices for maintaining the distance between parallel conductors, electrical components, etc., can solve the problems of sub-gap oscillation, limited damping and shock absorption, etc., to reduce vibration excitation, Strengthen the damping and shock absorption effect and increase the damping effect

Pending Publication Date: 2018-07-31
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional power system power transmission and transformation engineering split wire spacers, each fixed arm is mostly of equal arm length, and the adjacent split wires are in the same plane for each span. Under certain windy weather conditions, the downstream split wire is in the wake of the upstream wire In the middle, the wind-induced sub-gap oscillation is generated; and the traditional spacer, the damping of the split wire-spacer system is provided by the material damping of the wire and the spacer itself, and the damping and shock absorption effect is limited

Method used

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  • Damping spacer with unequal arm lengths
  • Damping spacer with unequal arm lengths
  • Damping spacer with unequal arm lengths

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with specific examples.

[0018] The damping spacer rods with unequal arm lengths provided by the present invention, such as Figure 1 to Figure 4 As shown, it includes a long fixed arm 1, a short fixed arm 2, a base 3, a viscous damper 4, and a heavy ball 5, and the connection of the damping spacer member, the deweighting ball 6 and the viscous damper 5 are connected by a fixed buckle The rest are bolted connections. The long fixed arm 1 and the short fixed arm 2 of the spacer and the split wires 6a, 6b, 6c, 6d, 6e, 6f are all fixed by wire clips.

[0019] In this embodiment, the damping spacers with unequal arm lengths have an irregular polygonal structure and a rotationally symmetrical structure. The center of rotational symmetry is located at the centroid of the base 3, and the rotation angle depends on the number of wire splits.

[0020] see Figure 1-2 , in the thickness direction of the base,...

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Abstract

The invention discloses a damping spacer with unequal arm lengths. The damping spacer comprises long type fixed arms, short type fixed arms, a base, viscous dampers and a heavy ball; the base is of aregular polygonal shape; the long type fixed arms and the short type fixed arms are alternately arranged on the periphery of the base; the heavy ball is arranged in the center of the base; the heavy ball is connected with the base through the viscous dampers; and one ends of the viscous dampers are fixed on the base while the other ends are fixed on the heavy ball. By adoption of a mode that adjacent split wires have different arm lengths of fixed arms, the adjacent wires can be in heterotopic surfaces in space, the downstream wires can avoid the tail parts of the upstream wires, so that vibration excitation can be reduced; by adoption of the viscous dampers, the damping of the split wire-spacer system is improved, and the damping and shock absorption effect is reinforced; and the components are simply connected and mounted conveniently and efficiently.

Description

technical field [0001] The invention relates to a damping spacer with unequal arm lengths for split wires in power transmission and transformation projects in power systems, which is used for fixing the split wires, increasing the damping of the split wire-spacer system, and suppressing secondary span oscillation, belonging to the technical field of electric power fittings. Background technique [0002] In traditional power system power transmission and transformation engineering split wire spacers, each fixed arm is mostly of equal arm length, and the adjacent split wires are in the same plane for each span. Under certain windy weather conditions, the downstream split wire is in the wake of the upstream wire In the middle, the wind-induced sub-gap oscillation is generated; and the traditional spacer, the damping of the split wire-spacer system is provided by the material damping of the wire and the spacer itself, and the damping and shock absorption effect is limited. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/12H02G7/14
CPCH02G7/125
Inventor 叶醒代兵郭文强桑涛李林陈爱萍严伟刘刚潘仁秋吴俊何其伟
Owner NR ELECTRIC CO LTD
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