Novel damping type anti-vibration device

Abstract

The invention provides a novel damping type anti-vibration device comprising a steel wire cable, a hanger spring shock absorber and a gravity concrete foundation, wherein one end of the hanger springshock absorber is installed on the gravity concrete foundation, and the other end of the hanger spring shock absorber is installed at a lowest sag point of the sag of a conductive wire or fixed to a frame of a spacing bar on the conductive wire through the steel wire cable. According to the novel damping type anti-vibration device, the vibration of the conductive wire can be effectively prevented,especially the up and down vibration of the conductive wire can be suppressed, and the device has a simple structure and is suitable for a variety of conductive wires with different split numbers.

Description

technical field [0001] The invention relates to an electric power transmission line protection device, in particular to a novel damping type anti-dancing device. Background technique [0002] Galloping of overhead transmission lines is a kind of self-excited vibration with low frequency and large amplitude, and vertical motion is the main movement in galloping. Galloping may cause short circuit between lines and grounding, and the losses include arc burns, broken strands, broken lines, tower damage, tower collapse, damage to anti-vibration hammer and spacer rods, etc., especially for ice-coated wires, the damage is more serious , if galloping cannot be effectively suppressed, it will bring serious economic losses and power grid safety accidents. [0003] As the voltage level increases, transmission lines use split wires with different split numbers, and the split wires are more prone to galloping. Therefore, it is urgent to develop corresponding effective anti-dance devices...

AI Technical Summary

Problems solved by technology

Existing interphase spacers, anti-dancing devices, etc. can reduce the degree of galloping to a certain extent, but it is still difficult to meet the requirements, and the existing related insulating stay wire anti-dancing devices have rigid breaking force, which may also cause breakage under certain circumstances. Accidents such as lines, falling towers, etc.

Images