Windage yaw-proof Y-type composite insulator and manufacturing method thereof

Abstract

The invention relates to a windage yaw-proof Y-type composite insulator, which comprises an I-shaped composite insulator string. The windage yaw-proof Y-type composite insulator is characterized by further comprising a strut type composite insulator string. The middle part of the I-shaped composite insulator string is fixedly provided with a connecting piece. One end of the strut type composite insulator string is fixed onto the connecting piece through a fastener, and the other end of the strut type composite insulator string is installed on a tower cross arm through a fixing piece. According to the technical scheme of the invention, on one hand, the strut type composite insulator string is arranged on one side of the I-shaped composite insulator string that is closer to a tower body so as to form a branch and construct a fixed triangular support, so that the swing of the I-shaped composite insulator is effectively limited. In this way, the windage yaw-proof Y-type composite insulator is simple in structure, convenient in operation and high in practicability. On the other hand, compared with a V-string insulator, the size of a cross arm is not increased and the structure of a tower head is not changed. Therefore, the expenditure can be saved to the greatest extent.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation, in particular to a Y-type composite insulator against wind deflection and a manufacturing method thereof. Background technique [0002] In order to save transmission line corridors, the side-phase conductors of EHV and UHV transmission lines are usually connected to the crossarm through I-type composite insulator strings. When the power transmission channel passes by or there is strong wind or strong wind weather, the transmission wire will swing around the hanging point of the insulator and the cross-arm as the center of the circle. If the wind speed reaches a certain level, the power transmission wire will discharge with the cross-arm or the tower, and a power transmission will occur. Line trip phenomenon. The essence of wind deflection discharge is that when the conductor swings, the electrical distance between the conductor and the crossarm or the tower body dec...

AI Technical Summary

Problems solved by technology

In view of the nature of wind deflection discharge, it is possible to change the I-type composite insulator string to V-type composite insulator string, thereby reducing the swing range of the conductor, but this measure will increase the length of the cross-arm of the tower and change the design of the tower head. increase in construction costs

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