Device and method for entering and exiting extra-high voltage strain insulator string by adopting unmanned aerial vehicle

Abstract

The invention discloses a device and a method for entering and exiting an extra-high voltage strain insulator string by adopting an unmanned aerial vehicle. A tower worker connects a first insulating rope which is connected with a special clamping and fixing device in advance with the unmanned aerial vehicle; the first insulating rope is carried by the unmanned aerial vehicle to fly to the wire end yoke plate, and the first insulating rope is controlled to be clamped on the wire end yoke plate through operating the unmanned aerial vehicle; the unmanned aerial vehicle flies to the cross arm head, the other end of the first insulating rope is transmitted to an operator of the cross arm head, and the operator on the tower fixes the other end of the first insulating rope to a tower material at the cross arm end; an equipotential operator holds the first insulating rope to enter an electric field; after electrified defect elimination is completed, the unmanned aerial vehicle mounts the first insulating rope and flies to the position over the wire end yoke plate, and the unmanned aerial vehicle takes down the special clamping and fixing device on the wire end yoke plate and transmits the special clamping and fixing device to an operator on the tower under the cooperation of the control rope of the operator on the tower. By means of the method, an operator can easily and rapidly enter an operation point from an extra-high voltage heavy ice area tower cross arm through the strain insulator string.

Description

technical field [0001] The invention relates to the technical field of ultra-high voltage line maintenance, in particular to the technology of entering and exiting ultra-high voltage tension strings when carrying out live-line fault elimination or installing an online monitoring device. Background technique [0002] In recent years, my country's UHV lines have developed rapidly, and the scale of the power grid has been expanding day by day. Due to the huge transmission capacity, its operation reliability is extremely high, and power outage maintenance is very difficult. It is often necessary to perform equipotential work to eliminate defects or install online monitoring equipment. However, due to the special design of UHV line towers and components in heavy ice areas, the equipotential operation faces many technical difficulties. [0003] 1. It is impossible to use the "cross two short three" method to enter and exit the equipotential [0004] Usually, the relevant regulat...

AI Technical Summary

Problems solved by technology

Due to the huge transmission capacity, its operation reliability is extremely high, and power outage maintenance is very difficult. It is often necessary to perform equipotential work to eliminate defects or install online monitoring equipment

However, due to the special design of UHV line towers and components in heavy ice areas, the equipotential operation faces many technical difficulties

[0003] 1. It is impossible to use the "cross two short three" method to enter and exit the equipotential

[0004] Usually, the relevant regulations and guidelines for live work stipulate that: the equipotential method of entering and exiting the tension tower of the transmission line is the "cross-two-short-three" method (in order to occupy the insulating air gap as small as possible, hands and feet cross two insulators, short-circuit Three pieces of insulators), practical experience shows that when the horizontal distance between two strings of insulators exceeds 60cm, the distance between the hands and feet of the operator is too large, and it is impossible to "synchronously move the hands and feet laterally" in accordance with the technical requirements of "crossing two shorts and three". Risky and labor intensive

The data shows that the horizontal distance between the two strings of insulators in UHV line tension is greater than 60cm, and the line tower is located in the heavy ice area. The distance is even 100cm.

[0005] 2. It is time-consuming and labor-intensive to install the insulating step ladder to enter and exit the live wire

Operators have spent a lot of physical strength and time before officially starting the operation, the safety risk at high altitude is relatively high, and the operation efficiency is low

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