An anti-galling flexible composite phase-to-ground spacer

Abstract

An anti-galling flexible composite phase-ground spacer rod, including a flexible rod body, an adjustment plate and a pull wire, the upper and lower ends of the flexible rod body are respectively connected with connection fittings and adjustment plates, and the flexible rod body between the high-voltage end fittings and the adjustment plate The upper sleeve is provided with two end attachments and an insulating shed located between the two end attachments, and the two ends of the stay wire are respectively connected to the adjustment plate and the ground. The flexible phase-to-ground spacer provided by the invention can simultaneously suppress the synchronous galloping and non-synchronous galloping of line conductors.

Description

technical field [0001] The invention relates to the field of anti-dancing devices, in particular to a spacer bar. Background technique [0002] The phenomenon of ice-coated galloping and de-icing jumping of transmission line conductors has caused great impact and harm to the power grid. At present, rigid interphase spacers are widely used to control the problem of line galloping. In recent years, there have been a large number of accidents of fatigue fracture of rigid interphase spacers or their matching fittings. Mainly because the rigid interphase spacers and their connecting fittings mainly bear tensile loads, they are designed according to the tensile loads. When the wire is covered with ice and dances, the line fittings and insulators are not only subjected to tensile loads, but also bent and twisted under the action of wind. Bending and torsional loads are not included in the design scope of rigid spacers, so rigid spacers are not suitable for bearing bending and tor...

AI Technical Summary

Problems solved by technology

The bending and torsional loads are not included in the design scope of rigid spacers, so rigid spacers are not suitable for bearing bending and torsional loads

At the same time, when galloping occurs, changing stress with a certain impact force acts on the spacer rods, and the rigid spacer rods are more likely to be damaged due to this alternating and impact stress.

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