Interphase spacer and configuration method for suppressing deicing jump of double-circuit transmission lines

Abstract

The present invention discloses a phase to phase spacer of restraining double loop power transmission line sleet jump and a configuration method thereof. The phase to phase spacer is composed of a vibration absorption device, a first connecting device and a second connecting device, the vibration absorption device is connected with two power transmission lines separately via the first and second connecting devices, and the first connecting device is composed of a hanging plate, an insulator and a hydraulic damper of which the length can be adjusted. One end of the insulator is connected with the vibration absorption device via the hydraulic damper, and the other end is connected with the power transmission line via the hanging plate. The configuration method comprises the steps of setting the length and adjustment range of the phase to phase spacer, selecting the number and type of absorption oscillators, setting the installation position and number of the phase to phase spacer, etc. The phase to phase spacer can adjust the length adaptively, and enables the shape change of a conducting wire and the load at the connection position of the spacer and the conducting wire to be reduced and the line service life to be improved. By a hollow structure, and under the premise of not increasing the weight, the slenderness ratio of the spacer is reduced as much as possible, and the anti-compression stability of the spacer is improved.

Description

technical field [0001] The invention relates to an interphase spacer and a configuration method for suppressing deicing jump of a transmission line, in particular to an interphase spacer and a configuration method for suppressing a double circuit transmission line for deicing jump. Background technique [0002] With the development of power grid construction, transmission line corridors are becoming increasingly tense, and it is inevitable to build multiple transmission lines in heavy ice areas. In the multi-circuit transmission line in the heavy ice area, the distance between the phases will be reduced due to the deicing and jumping of the conductors after the ice is covered, resulting in line faults. In severe cases, it may lead to serious accidents such as line disconnection or even tower collapse. [0003] At present, the anti-icing jump of the line is generally to increase the interphase spacer, but the current interphase spacer is mostly composed of an insulating strin...

AI Technical Summary

Problems solved by technology

In the multi-circuit transmission line in the heavy ice area, the distance between the phases will be reduced due to the deicing and jumping of the conductor after the ice is covered, resulting in a line fault. In severe cases, it may lead to serious accidents such as line disconnection or even tower collapse.

[0003] At present, the anti-icing jump of the line is generally to increase the interphase spacer, but the current interphase spacer is mostly composed of an insulating string made of solid composite material as the mandrel. For the high-voltage transmission line, due to the large distance between the phases, the interphase during operation at the same time Due to factors such as gear distance and height difference, the phase-to-phase distances of different gears are not the same, which makes the installation and operation of the current phase-to-phase spacers very inconvenient.

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