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Dry-type capacitor type composite insulating sleeve pipe production method

A composite insulation and production method technology, applied in the direction of lead-in/through-type insulators, insulators, insulators, etc., can solve the problems of easy breakdown and partial discharge, and achieve the effect of avoiding breakdown and reducing the generation of micropores

Active Publication Date: 2015-09-09
江苏沃能高压电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bushing with the above structure has disadvantages such as easy breakdown and influence on partial discharge.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The production method of the dry capacitor type composite insulating bushing of the present invention is realized through the following steps:

[0024] The first step, tape winding: take a metal tubular conductor, have a grease injection port and an exhaust port at both ends of the conductor, wrap several layers of glass fiber cloth tape and semiconductor conformable material on the surface of the conductor, and the glass fiber Interlaced winding of cloth tape and semi-conductive conformable material;

[0025] The second step, wrapping: put a heat-shrinkable sleeve on the outer wall of the conductor wrapped with cloth tape, and then vacuumize the space between the heat-shrinkable sleeve and the conductor, so that the heat-shrinkable sleeve is tightly attached to the on the outer wall of the conductor. In this embodiment, the model of the heat shrinkable sleeve is ZRRAXSLEEVESBI300 / 350.

[0026] The third step, grease injection: under the vacuum state of -90--100KPa, p...

Embodiment 2

[0031] The first step, tape winding: take a metal tubular conductor, have a grease injection port and an exhaust port at both ends of the conductor, wrap several layers of glass fiber cloth tape and semiconductor conformable material on the surface of the conductor, and the glass fiber Interlaced winding of cloth tape and semi-conductive conformable material;

[0032] The second step, wrapping: put a heat-shrinkable sleeve on the outer wall of the conductor wrapped with cloth tape, and then vacuumize the space between the heat-shrinkable sleeve and the conductor, so that the heat-shrinkable sleeve is tightly attached to the on the outer wall of the conductor. In this embodiment, the model of the heat shrinkable sleeve is ZRRAXSLEEVESBI300 / 350.

[0033] The third step, grease injection: under the vacuum state of -90--100KPa, pour epoxy resin into the cavity between the heat shrinkable sleeve and the conductor from the grease injection port on the conductor until the resin is f...

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PUM

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Abstract

The present invention relates to a dry-type capacitor type composite insulating sleeve pipe production method which comprises a step of taking a metal tube conductor and winding a layer of glass fiber cloth belt around the surface of the conductor, a step of sleeving outer side wall of the conductor wound by the cloth belt with a heat-shrinkable sleeve pipe, carrying out vacuum pumping processing on the space between the heat-shrinkable sleeve pipe and the conductor and pouring epoxy resin into the cavity between the heat-shrinkable sleeve pipe and the conductor from the resin poring port on the conductor, and a step of heating, drying and curing the conductor and winding a layer of semiconductor glass fiber on the outer wall of the heat-shrinkable sleeve pipe. The method has the advantages that an original glass fiber cloth belt layer is replaced by the staggered winding of glass fiber cloth belt and a semiconductor conformal material, and a breakdown phenomenon can be avoided well.

Description

technical field [0001] The invention relates to the field of bushing manufacturing, in particular to a production method of a dry capacitance type composite insulating bushing. Background technique [0002] The capacitor core is composed of multiple layers of insulating paper, and aluminum foil is sandwiched between the layers according to the design requirements, forming a series of coaxial cylindrical capacitors. The electric field distribution is much more uniform than that of the composite casing, and the insulating layer between adjacent aluminum foils is very thin, so the dielectric strength is very high. Sub-adhesive paper casing, oil-paper casing and glue-impregnated fiber casing. [0003] Adhesive paper sleeve: baked with 0.06mm epoxy resin-coated adhesive paper roll on one side, part of the oil can not use ceramics, the length can be shortened, high mechanical strength, small size, less oil consumption; partial discharge resistance Good performance; large dielect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00H01B17/28H01B17/58H01B17/60
Inventor 田塨张小兵
Owner 江苏沃能高压电气有限公司
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