Rotary bird repelling device at cross arm of power transmission line tower

Abstract

The invention discloses a rotary bird repelling device at a cross arm of a power transmission line tower. The rotary bird repelling device comprises a first connecting rod, an inclined connecting rod, a base, a bird repelling agent containing box and an air chamber. Compared with the prior art, deflection of the device is adjusted through a limiting block, the light reflecting and bird repelling effects of the device are more obvious after the device deflects, by means of a vertical baffle inside the device, airflow enters the air chamber from an air outlet, and is discharged form a whistle ringing position, meanwhile, air inlets distributed in the two sides of the inclined connecting rod in a staggered mode can convey the air flow into the air chamber in real time so as to change the flow speed of the internal air and achieve the change of the sound of a whistle, the bird repelling effect of the whistle is better, the rotary bird repelling device has a certain length and can effectively protect the cross arm, in the rotating process, the upper portion of the cross arm can be effectively cleaned through an obstacle removing rod, and bird nesting is avoided.

Description

technical field [0001] The invention relates to the technical field of electric power protection, in particular to a rotary bird repelling device at the cross arm of a power transmission line tower. Background technique [0002] In recent years, with the improvement of the ecological environment and the enhancement of human awareness of wildlife protection, bird activities have become more frequent. When birds defecate, nest, fly, peck and other activities on the transmission line, the excreted bird droppings form a conductive channel, which may cause the air gap breakdown of the tower, and the insulator may also have flashover and other problems. A large bird will directly cause a short circuit fault, seriously affecting the safe and stable operation of the transmission line. From 2005 to 2014, a total of 1867 trips due to bird damage occurred on 110 (66) kV and above lines of the State Grid Corporation of China, accounting for 7.1% of the total number of line trips, and i...

AI Technical Summary

Problems solved by technology

When birds defecate, nest, fly, peck and other activities on the transmission line, the excreted bird droppings form a conductive channel, which may cause the air gap breakdown of the tower, and the insulator may also have flashover and other problems. The big bird will directly cause a short circuit fault, seriously affecting the safe and stable operation of the transmission line

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