Insulator chain for emergency galloping stopping of power transmission line and accurate connection method of insulator chain

Abstract

The invention relates to an insulator chain for emergency galloping stopping of a power transmission line and a connecting method, the device comprises a cuboid connecting frame, the connecting frame is formed by connecting eleven connecting rods and a connecting shaft, and the eleven connecting rods comprise an upper connecting rod, a middle connecting rod and a lower connecting rod; each end part of the connecting shaft is connected with an upper connecting rod and a middle connecting rod, the connecting shaft is movably connected with the upper connecting rod, the upper connecting rod comprises a movable rod part movably connected with the connecting shaft and a fixed rod part fixedly connected with the connecting rod opposite to the movable shaft, and the movable rod part and the fixed rod part are arranged in a breaking manner; an elastic supporting piece for emergency dance stopping is arranged between the middle connecting rod and the upper connecting rod which are connected with the connecting shaft; limiting devices are arranged above the two ends of the connecting shaft respectively, and an insulator chain for emergency galloping stopping is fixedly arranged on the lower connecting rod. The connection method using the device can achieve the purposes of reducing the galloping amplitude, inhibiting the galloping effect and protecting the normal operation of the power transmission line.

Description

technical field [0001] The invention belongs to the field of galloping prevention and control of transmission lines, and in particular relates to a portable insulator string and a connection method for emergency galloping of transmission lines. Background technique [0002] Galloping of transmission lines has occurred frequently in recent years, and its distribution range is very wide, and the hazards of galloping are serious. In serious cases, it will cause accidents such as line tripping, tower collapse, and disconnection. . [0003] At present, anti-dancing technical measures mainly focus on how to reduce the probability of galloping and reduce the amplitude of galloping in advance. In the actual operation and maintenance process, in the face of line galloping, in addition to strengthening observation, there is a lack of effective emergency response methods and strategies. With the increasingly complex meteorological environment and the increase of line-dense channels, ...

AI Technical Summary

Problems solved by technology

In a multi-conductor power transmission line in which three or more sub-conductors are arranged in a left-right symmetrical regular polygon, the fixed clamping part and / or the loose sleeve clamping part are movably installed on the spacer to form a spacer, and the above-mentioned spacer The wiring structure of a torsion-resistant low-center-of-gravity type multi-conductor transmission line in which a clamping part with a large mass is installed below the line direction and clamps the sub-conductor, or the installation of a spacer bar on the side of the support point within the span The wiring structure of the torsion-resistant low-center-of-gravity type multi-conductor power transmission line that prevents galloping is densely spaced, the installation interval of the spacer bars near the center of the span is wide, and the clamping part with a large mass is installed uniformly below, which prevents galloping. The line structure is a fixed installation structure, which is not easy to adjust, and it is inconvenient for later use and maintenance

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