Jumper sag measuring device

Abstract

The invention discloses a jumper sag measuring device which comprises a support mechanism, positioning mechanisms and a measuring mechanism, wherein a cross elbow is mounted at the upper end of the support mechanism; the positioning mechanisms are respectively mounted on two sides of the cross elbow; each of the support mechanism and the positioning mechanisms respectively comprises a support rod and a positioning rod; the support rods and the positioning rods are all composed of high-voltage insulating telescopic rods; the measuring mechanism comprises a rocker rotating wheel, a measuring line and a measuring cone; the rocker rotating wheel is mounted at the lower end of the support mechanism; one end of the measuring rope is connected with the winch of the rocker rotating wheel; the measuring cone is mounted at the other end of the measuring rope after the other end of the measuring rope penetrates through the top of the cross elbow. Compared with the prior art, the jumper sag measuring device is capable of implementing live line measurement, the measuring time can be greatly shortened, and moreover only one operator is needed to complete the measurement on a tower, so that the working intensity is greatly alleviated, and the working efficiency is high; length measurement data of a jumper sag is relatively accurate, and thus an effective and professional measuring tool can be provided for a windage yaw prevention transformation construction decision of new or old lines.

Description

technical field [0001] The invention relates to a measuring device, which belongs to an auxiliary tool for an electric power system, in particular to a jumper wire sag measuring device used on a power transmission tower. Background technique [0002] In recent years, due to frequent occurrence of local convective weather and low design standards of old lines, in power transmission lines, there have been many accidents of wind deflection and gate failure due to the discharge of towers in severe weather such as strong winds due to too long bow lines. , The long sag of the jumper has become a hidden danger that seriously affects the safe operation of the line. Retrofitting bow-zinc lines that do not meet the new design requirements of transmission lines is an important way and protective measure to ensure that wind deflection discharge faults do not occur. Therefore, in the acceptance of new lines or the construction of anti-wind deflection of old lines, it is necessary to acc...

AI Technical Summary

Problems solved by technology

[0003] At present, the means and tools for measuring the sag of the jumper on the transmission tower can only be operated when the line is out of power, and two people are required to cooperate closely during the measurement. The two ends are connected, and another person uses a measuring rod to measure on the insulator. The whole measurement process is cumbersome, there are many preparation steps before the measurement, and the measurement results are not accurate, so only a summary measurement

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