Insulator with combined type barrier

Abstract

The invention relates to an insulator with a combined type barrier. The combined type barrier is arranged on an insulating body or an electrode of the insulator, or a part of the combined type barrier is arranged on the electrode and the other part of the combined type barrier is arranged on the insulating body. The combined type barrier consists of a general barrier and a plurality of auxiliary barriers, wherein the center of the general barrier is provided with center holes with different inner diameters, the upper surface and the lower surface of the general barrier are provided with annular grooves with different radiuses for installing the different auxiliary barriers, and the side surface of the general barrier is provided with holes with different radiuses for installing the different auxiliary barriers. The insulator solves the problems that mould manufacturing and an insulator with a three-element structure are difficult to generalize in the original patent and patent application of the applicant, the manufacturing and installation of the barrier are facilitated, few combined type barriers can be used for meeting the insulators of different types, insulating materials and voltage classes, the insulation and creepage distance of the insulator are increased, and the flashover, wet flashover and pollution flashover voltages are improved so as to be beneficial to the generalization of the insulator with the three-element structure.

Description

technical field [0001] The utility model relates to an insulator used in a power system, in particular to an insulator with a combined barrier. Background technique [0002] Because the vast majority of insulators work outdoors, the operating conditions are very harsh. The vast majority of blackout accidents in the power system are related to the surface flashover of the insulator. In order to solve this problem, the applicant proposed a three-element theory, that is, adding a barrier to change the two elements of the original insulator's insulating body and connecting fittings into three elements . For this reason, the applicant has the patent of "An Insulator That Can Improve the Electric Strength of External Insulation" (Chinese Patent No. 200810197722.5), which is to set the upper and lower barriers outside the upper and lower electrodes of the insulator; On the insulator of the composite suspension insulator and the long bushing insulator, the floating electrode is se...

AI Technical Summary

Problems solved by technology

[0007] The above two patents have limitations in the production process of the barrier, that is, there are many types of barriers, different types of insulators, different barriers; different insulator electrodes, different barriers; Difficulty posed by generalization of elemental structural insulators

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