Damper for 1000kV extra-high voltage alternative-current transmission line

Abstract

The invention relates to a damper for 1000kV extra-high voltage alternative-current transmission lines in power sector, which comprises a cable clamp, two damper bodies, a steel strand and at least one preformed armor rod. The cable clamp and the steel strand are fixedly connected; the two damper bodies are respectively fixed on the two ends of the steel strand; the preformed armor rod fixes the cable clamp on a power transmission line; the cable clamp is in a sea horse shaped structure; the damper bodies are in a kirsite cucurbit shaped structure; and the connection position of the steel strand and the damper bodies is arranged on the sides of the fixing end damper heads of the damper bodies. Since the cable clamp is provided with a separation nail, the damper can be effectively connected with a power transmission cable; and hangers of the cable clamp, as well as corners of the cable clamp, which are used for fixing conduits, are designed in to an arc shape, thereby avoiding marginaldischarge; since the damper bodies made of kirsite are cast into a cucurbit shape, the specific gravity of the damper bodies is improved and the volume of the damper bodies is reduced; and since the connection between the windward side of the damper head at a cantilever end and the damper heads is designed into an arc shape and the size of the arc is controlled in a certain range, the marginal discharge can be avoided.

Description

technical field [0001] The invention relates to an anti-vibration device for power transmission and distribution lines in the electric power industry, in particular to an anti-vibration hammer for 1000kV UHV AC power transmission. Background technique [0002] After retrieving relevant patent documents, an anti-vibration hammer for 1000kV UHV AC power transmission with the same structure as the present invention has not yet been retrieved. As a vibration damping device for transmission and distribution lines, the anti-vibration hammer has been widely used in overhead transmission lines. Due to its structure, the existing anti-vibration hammer has a bulky shape, and it is difficult to eliminate the deposition of water and ice. At the same time, it is easier to produce tip discharge and flash pollution under the 1000kV UHV AC state. The ZL200720039659.3 applied by the patentee is named: anti-skid type anti-vibration hammer, which has greatly improved the anti-vibration effect...

AI Technical Summary

Problems solved by technology

Due to its structure, the existing anti-vibration hammer has a bulky shape, and it is difficult to eliminate the deposition of water and ice. At the same time, it is easier to produce tip discharge and flash pollution under the 1000kV UHV AC state.

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