Short-circuit ground wire suspension device

Abstract

The invention relates to a short-circuit ground wire suspension device which comprises a base plate (1), a pressing plate (2) and a suspension rod (3). The base plate (1) and the pressing plate (2) are detachably connected, the base plate (1) and the pressing plate (2) are provided with corresponding semicircular grooves (6) for fixing a busbar, one end of the suspension rod (3) is perpendicularly fixed to the base plate (1), and the suspension rod (3) is provided with a groove (7) used for hanging a short-circuit ground wire. According to the short-circuit ground wire suspension device, the installation angle of the short-circuit ground wire is changed so that installation can be completed quite easily by operators without other tools; meanwhile, the force bearing direction and the clamping degree of the ground wire are changed, and therefore the probabilities that the ground wire disengages and is damaged are greatly reduced.

Description

[0001] technical field [0002] The invention relates to a three-phase short-circuit ground wire suspension device. Background technique [0003] The mature technology of installing three-phase short-circuit wiring in the power system is to clamp the grounding wire directly on the busbar, and design the clamping mouth of the grounding wire into various shapes according to the specifications of the busbar, such as: rectangular and round; and then according to the specifications of the busbar The installation height is adjusted by designing the insulating rod of the grounding wire to be of different lengths. The existing technology can basically meet the installation of the grounding wire, but when hanging on the vertically installed busbar, it exposes that the existing grounding wire cannot change the angle and Unreliable defects in fixation are mainly manifested as follows: [0004] 1. The installation angle of the grounding wire cannot be changed: when the grounding wire i...

AI Technical Summary

Problems solved by technology

[0003] The mature technology of installing three-phase short-circuit wiring in the power system is to clamp the grounding wire directly on the busbar, and design the clamping mouth of the grounding wire into various shapes according to the specifications of the busbar, such as: rectangular and round; and then according to the specifications of the busbar The installation height is adjusted by designing the insulating rod of the grounding wire to be of different lengths. The existing technology can basically meet the installation of the grounding wire, but when hanging on the vertically installed busbar, it exposes that the existing grounding wire cannot change the angle and Unreliable defects in fixation are mainly manifested as follows:

[0004] 1. The installation angle of the grounding wire cannot be changed: when the grounding wire is suspended, it can only be installed at 90 degrees to the busbar according to the design requirements. If the busbar is installed horizontally, the operator stands on the ground and is perpendicular to the busbar, which is easy to install. However, if it is 90 degrees to the vertically installed bus bar, especially if the installation position is relatively high (calculated according to the voltage level, the minimum standard for the position of the suspended ground wire to be 110kV>3500mm and 220kV>5000mm from the ground), the operator is required to use When other appliances are raised to the same height, it is very difficult to install, many operators are required, and the operation takes a long time, especially for some open-designed substations, which cannot meet the safety distance stipulated by the electric safety regulations.

[0005] 2. The grounding wire is not fixed firmly after being suspended: the grounding wire is clamped on the vertically installed busbar and forms a 90-degree angle with the busbar, and its own weight causes a downward force under the action of gravity. The moment is greater than its downward force, which can maintain balance, but under the action of external force (such as wind, rain, snow, ice), it will cause shedding, fracture and deformation of the metal part of the clip

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