Outdoor high voltage vacuum circuit breaker

A vacuum circuit breaker, high-voltage technology, applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problems of not making environmentally friendly products, and achieve high anti-wet and pollution flashover ability, simple structure, and extended range wide effect

Inactive Publication Date: 2003-11-12
王若柏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Japanese circuit breaker only uses vacuum as the arc extinguishing medium, and its internal insulation is still insulated by sulfur hexafluoride gas, which is not a real environmental protection product.

Method used

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  • Outdoor high voltage vacuum circuit breaker
  • Outdoor high voltage vacuum circuit breaker
  • Outdoor high voltage vacuum circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] In the present invention, the epoxy glass filament winding drum skeleton made of epoxy resin and glass filament is used as the insulation, and the outer insulation is made of silicone rubber as the shed. Porcelain, the arc-extinguishing chamber part is made of epoxy glass filament winding tube as the skeleton, the external vulcanized silicone rubber shed, a liquid silicone rubber is filled between the winding tube and the arc-extinguishing chamber as the upper inner insulation, and the lower supporting part is also made of ring. Oxygen glass filament winding drum is used as the skeleton, and both inside and outside are vulcanized with silicone rubber umbrella skirts. There are multiple silicone rubber umbrella skirts inside and outside, and the upper part and the lower part can be connected together by flanges. The frame, spring mechanism, mounting strut and transmission system are existing technologies, which can be produced by general circuit breaker factories.

[001...

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PUM

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Abstract

The breaker comprises the insulation part, the vacuum arc extinguish chamber, external insulation, internal insulation, the support part, the insulation pull rod, the spring device and the driving system. The upside external insulation is silicone rubber solid insulation. The upside internal insulation is the insulation with fluid silicone rubber being filled between the extinguish chamber and the glass fiber winding barrel. The underpart is air insulated. There are multiple sulfurated inner umbrella skirts and outer umbrella skirts inside and outside glass fiber winding barrel. The insulation pull rod with the lead and lift bar of the glass fiber being as framework is installed inside glass fiber winding barrel. There are sulfurated silicone rubber and umbrella skirts in outside also. The lower part of the pull rod is connected to the driving system. Without using sulfur hexafluoride, the invention has no pollution, suitable for use outdoor as high voltage vacuum breaker.

Description

Technical field: [0001] The invention relates to the technical field of outdoor high-voltage vacuum circuit breakers, specifically, it is an outdoor high-voltage vacuum circuit breaker with no porcelain for external insulation, internal insulation not filled with insulating oil, and not filled with insulating gas. Background technique: [0002] At present, vacuum circuit breakers and sulfur hexafluoride circuit breakers are running in power grids below 35kV in the power system, and oil-less circuit breakers are being withdrawn from operation and eliminated. Most of the power grids above 72.5kV are sulfur hexafluoride circuit breakers, and there are a few oil-less circuit breakers in operation. Sulfur hexafluoride gas mainly plays the role of arc extinguishing and internal insulation in circuit breakers, and the external insulation is made of porcelain materials. Sulfur hexafluoride gas is a gas that is harmful to the atmosphere. The large-scale use of sulfur hexafluoride ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66H01H33/666
Inventor 王若柏
Owner 王若柏
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