A 10kV vacuum circuit breaker disassembly-free repairing method based on nanoscale electric conduction optimization protection

By optimizing the protection method with nanoscale electrical conductivity, aerosol spraying and pulsed electric field-assisted nanoparticle deposition are used, combined with gradient vacuuming and infrared heating, to form a conductive layer with a mesoporous framework structure. This solves the problems of weak bonding and high outgassing rate of vacuum circuit breaker repair materials, and achieves efficient and stable repair results.

CN122298645APending Publication Date: 2026-06-30CHONGQING XINYUAN PORT TECH DEV CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610453031.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing vacuum circuit breaker repair technologies require disassembly, are complex to operate, have weak bonding strength with repair materials, are difficult to meet the requirements of high conductivity and high insulation, and are prone to gas release in a vacuum environment, affecting the stability and lifespan of the equipment.

Method used

A nanoscale electrical conductivity optimization protection method is adopted, which uses aerosol spraying and pulsed electric field-assisted nanoparticle deposition, combined with gradient vacuuming and infrared heating, to form a mesoporous framework conductive layer. By utilizing the quantum tunneling effect of gold nanoparticles and low-temperature sintering technology, the dual optimization of conductivity and insulation is achieved.

Benefits of technology

It significantly shortens the repair cycle, reduces maintenance costs, ensures vacuum stability, reduces contact resistance, improves insulation performance, extends equipment life, and the repair material has excellent vacuum compatibility and high-temperature stability.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention discloses a non-disassembly repair method for 10kV vacuum circuit breakers based on nanoscale electrical conduction optimization protection in the field of high-voltage electrical equipment inspection and maintenance technology. The method includes cleaning the vacuum bubble shell, preparing a carboxylic acid aluminum oxane silsesquioxane block copolymer dispersion, spraying the dispersion into the arc-extinguishing chamber via aerosol spraying, and then applying a pulsed DC electric field to induce the directional deposition of nanoparticles after settling. Subsequently, gradient vacuum-driven anchoring and solvent removal are performed, using infrared heating combined with gradient vacuum extraction to remove the solvent. Next, the contacts are closed and AC current is applied for low-temperature sintering bonding to form a quantum tunnel conductive layer. Finally, gradient aging treatment and comprehensive performance verification are performed. This invention can effectively repair arc erosion defects, reduce contact resistance, improve insulation performance and vacuum level, and achieve high-performance recovery of circuit breakers; the process is feasible.
Need to check novelty before this filing date? Find Prior Art