Multifunctional modular strain insulator string

Abstract

The invention provides a multi-functional modular strain insulator string for a power transmission and distribution line. The multi-functional modular strain insulator string is composed of a single lug ring, a housing, an open spring ring, a supporting column, a double-ear support, a short arc striking rod, a long arc striking rod 9 and a grounding ring. The multi-functional modular strain insulator string has an electric pole protection function: when wind which acts on a conductor achieves a certain force, the inclined circular surface of the supporting column acts on the spring ring so as to force the spring ring to expand outwards, and the supporting column and the conductor slip out together, and therefore, an electric pole can be prevented from being fractured. The multi-functional modular strain insulator string has a bird attack prevention function: pricking pins are arranged among the sheds of the insulator, and the head of each pricking pin is in a sharp-corner shape, and therefore, insulation flashover and tripping caused by a situation that flying birds rest and defecate on an insulator can be avoided. The multi-functional modular strain insulator string has a lightning-caused line fracture prevention function: the long arc striking rod and the short arc striking rod are arranged at two sides of the insulator, and an optimal discharge gap is set, when the insulator string is subjected to lightning strike, freewheeling power-frequency arc can be led to the discharge gap so as to be burnt, and therefore, a conductor and the insulator can be prevented from being burnt out. The multi-functional modular strain insulator string has an electricity verification and grounding function: the lower right part of the insulator is provided with the grounding ring, so that electricity verification and grounding in maintenance can be facilitated.

Description

Technical field: [0001] The invention relates to the field of safe operation of electric power transmission and distribution lines, which can prevent the breakage of tension-resistant electric poles by strong typhoons, can prevent short-circuit tripping of tension-resistant insulators caused by birds stopping to defecate, and can prevent lightning strikes from breaking the line. Ideal multifunctional modular tension insulator string. Background technique: [0002] In the process of human development, higher and newer requirements have been put forward for energy. At the same time, the emission of greenhouse gases on the earth will also continue to grow, which will bring greater pressure to the development of the social environment. At present, countries around the world have successively proposed the concepts of environmental protection, high efficiency, safety and energy saving. In this concept, in order to truly realize the high efficiency, safety, environmental protecti...

AI Technical Summary

Problems solved by technology

Enhanced typhoons and thunderstorms have caused immeasurable losses to the power system; according to relevant reports, several super typhoons have invaded this year, causing many poles to break off power transmission and distribution lines. And the cost is extremely high; the reproduction of birds is also increasing; according to the reports of power departments in many places, power transmission and distribution lines are subject to birds excreting feces, and even nesting, which causes insulation flashover and tripping, which is one of the main reasons for line tripping 1. With the global warming, the weather of thunder and lightning has increased unabated. The loss of the power system caused by lightning strikes is obvious to all. Lightning strikes and disconnections of insulated wires occur frequently;

Images