A fixture and operation method for live replacement of tension insulator strings by ground potential method

Abstract

The invention relates to a fixture for replacing a strain insulator string under an electrified state based on an earth potential method. The fixture comprises left and right linking plate clamps which are respectively used for connecting linking plates at two ends; the left and right linking plate clamps are respectively composed of a mounting base, a pulley block and a set of linking plate clamping connectors; the pulley blocks are mounted on the mounting bases; the linking plate clamping connectors are detachably connected with the mounting bases; the left and right linking plate clamps are connected through a high-strength rope which is wound between the two pulley blocks; one end of the high-strength rope is fixed on one of the linking plate clamps while the other end is served as a free operating end. According to the fixture and an operation method provided by the invention, the operation is simple, quick and convenient; the working strength of operators can be reduced; the working efficiency is increased; the operation time is reduced; the applicability is excellent; the operation can be efficiently and safely finished under the condition of ensuring the safety of operators; the safe running of a power grid is ensured while the power-off / on operation volume and the change of the running mode of the whole power grid are reduced; the running safety and reliability of the power grid are greatly increased; the economic benefit is obvious.

Description

technical field [0001] The invention relates to the technical field of live operation of power grids and transmission lines, in particular to a jig and operation method for live replacement of strain insulator strings by ground potential method. Background technique [0002] With the development of social economy, the society's demand for electricity is increasing, which promotes the continuous expansion of the grid scale. As the main way of power transmission, overhead line transmission is currently increasing. There are many kinds of fittings and synthetic insulators of different lengths. The original work fixtures can no longer meet the current diversified work needs. If it cannot be handled once it is live, it will require more power outage operation time, which will cause huge economic losses and social effects. In order to alleviate such contradictions, there is an urgent need for a tool that can adapt to different work requirements and carry out live work easily. ...

AI Technical Summary

Problems solved by technology

The models of line fittings, connecting plates and wires that have been put into operation for many years are much larger than those of the early lines. Therefore, the original operation jigs for replacing strain insulators can no longer meet the requirements of the current line insulator replacement, and many operations cannot be carried out.

At the same time, during the equipotential operation, the conventional method of equipotential personnel equipotentialization, due to the lack of space distance, the use of old fixtures is no longer applicable to the current new type of tower

Images