Insulator grading ring with arc extinguishing function

By integrating arc-extinguishing and directional components onto the equalizing ring, the arc is segmented and energy is dissipated in stages, solving the problem of long arcs being difficult to extinguish, improving arc-extinguishing efficiency and reliability, and reducing operation and maintenance costs.

CN224554095UActive Publication Date: 2026-07-24JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing equalizing rings lack an active arc extinguishing mechanism, making it difficult to extinguish long arcs quickly, which can easily lead to reignition and damage to the insulator surface. At the same time, their electric field regulation function is limited, increasing the risk of flashover and short circuit.

Method used

The design employs a combination of arc-extinguishing and directional components. The arc-extinguishing component achieves arc stretching, segmentation, and cooling through progressive physical segmentation and energy dissipation, while the directional component uses permanent magnets to generate a directional magnetic field that forces the arc to move toward the center. Combined with a metal grid assembly, this achieves arc stretching, segmentation, and cooling.

Benefits of technology

It significantly improves arc extinguishing efficiency, reduces operation and maintenance costs, suppresses the risk of arc reignition and spread, and enhances arc extinguishing reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to power equipment technical field discloses a kind of insulator grading ring with arc extinguishing function, including grading ring body, the arc extinguishing assembly for extinguishing arc is installed on the grading ring body upper end face, the directional assembly for accelerating arc segmentation arc extinguishing is installed outside the arc extinguishing assembly.The utility model realizes the step-by-step energy dissipation of arc from outside to inside by arc extinguishing assembly, significantly improves arc extinguishing efficiency and is convenient to disassemble and maintain, while directional assembly adopts annular Halbach array permanent magnet, generates directional strong magnetic field on the outer wall of grading ring body, forcibly drives arc to be introduced into arc extinguishing assembly along radial accurately, makes arc stretching speed and segmentation efficiency synchronous promotion, magnetic field symmetrical distribution adapts bidirectional current, cooperates arc extinguishing assembly whole-process inhibition arc reignition and diffusion, overall enhances arc extinguishing reliability.
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