Operating tool for hot-line replacement of ring-type mount-point suspended insulator and operating method thereof

Abstract

The invention relates to a device for hot-line replacement of an insulator on a high-voltage line, and in particular relates to an operating tool for hot-line replacement of a ring-type mount-point suspended insulator and an operating method thereof, which are applied to cross-arm ring-type mount-point or ring-type mount-point like power towers with steel rods in 110kV-220kV transmission lines. The operating tool is mainly a clamped fixture and a unique fastening bolt is taken as an operating connection point, thus the movement and the operation are integrated into a whole, thereby solving the problems that an original operating tool is complicated in structure and the operation steps are fussy. The operating tool is simple in structure and easy to operate, and the fewer parts are used. The operating method of the operating tool is characterized in that a ring-type method is used to carry out hot-line replacement operation, is simple and easy to operate, small in required operation space and low in safety gap requirement, thus realizing hot-line replacement of cross-arm ring-type mount-point insulators with steel rods, avoiding a series of economy, production and power supply problems caused by blackout operation, and filling in the gap of hot-line inspection of the insulators of the steel tube power towers.

Description

technical field [0001] The invention relates to a device for live replacement of insulators on a high-voltage line, in particular to a working tool and a working method for live replacement of hanging ring type suspension insulators. It can be applied to 110 kV~220 kV transmission line steel pole cross-arm hanging ring type hanging point or similar ring type hanging point type power pole tower. Background technique [0002] In recent years, in the construction of urban power grids, a large number of steel pipe poles have been used as materials for the construction of high-voltage power poles and towers. This is because steel pipe poles occupy less space, require less investment, and are fast in construction, beautiful and practical. However, the surface of this type of steel pipe pole is smooth, the cross arm is short and narrow, resulting in a narrow operating space, and the steel pipe pole cross arm structure and insulator string hanging point types are various, generally ...

AI Technical Summary

Problems solved by technology

However, the surface of this type of steel pipe pole is smooth, the cross arm is short and narrow, resulting in a narrow operating space, and the steel pipe pole cross arm structure and insulator string hanging point types are various, generally double or more than four rounds are erected on the same tower, and the safety clearance It is also small; in contrast, the traditional working tools and methods for live replacement of insulators require the cooperation of multiple people, and sufficient operating space and safety clearance are required. The tools are scattered and the operation process is relatively cumbersome. None of the safety gaps can meet the requirements of traditional operations, and the operation is extremely difficult. Therefore, there are currently no operating tools and methods for live replacement of steel pipe pole insulators on 110 kV lines, especially for ring-type hanging point suspension insulator strings. Since there is no place on the cross arm for ordinary clamps to be installed, if the suspension ring at the suspension of the insulator is used, the structure of the suspension ring is thin and narrow, which cannot meet the requirements of safe operation

As the reliability of power supply becomes higher and higher, if you still rely on power grid outage operations, you will not be able to adapt to the requirements of the power grid development situation

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