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Dry type composite outer high-voltage casing and its production process

A dry compound, high-voltage bushing technology, applied in the direction of products, conductors, insulators, etc., can solve the problems of reasonable and uniform distribution of the electric field potential in the axial and radial directions of the capacitor core, the main insulating layer is prone to moisture, and there is no layer-by-layer protection. , to achieve stable and reliable electrical and mechanical properties, improved electrical and mechanical properties, and light weight

Inactive Publication Date: 2005-06-22
ZHONGNENG RUISITE ELECTRICAL BEIJING
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the description describes the advantages compared with traditional ceramic tubes, such as "can effectively improve the distribution of electric field strength at the ground terminal", etc., but this product does not make the axial and radial electric field potential of the capacitor core The distribution is reasonable and uniform, and there is no layer-by-layer protection effect. Once the external moisture invades the bushing, the inside of the main insulating layer is very easy to be damp, and then electric field distortion occurs

Method used

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  • Dry type composite outer high-voltage casing and its production process
  • Dry type composite outer high-voltage casing and its production process

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Embodiment Construction

[0027] like figure 1 As shown: 1 is a conductive rod, which is made of copper rod (tube) or aluminum rod (tube). The conductive rod 1 and the main insulating layer 2 form a capacitor core (solid concentric cylinder series capacitor). The main insulating layer 2 can adopt the existing wet winding molding process during processing, and use the special equipment for winding epoxy wire or fiber cloth insulating tube (rod) to wrap semiconductor tape, glass wire dipped in epoxy resin, etc. Or glass fiber braids are wound and shaped at intervals to form a closely bonded main insulating layer 2 on the conductive rod 1 .

[0028] The specific operation of manufacturing capacitor core is as follows:

[0029] a. First fix the conductive rod 1 on the winding frame, start the winding machine and start the heating device at the same time, adjust the heating temperature to 120 ° C, in order to make the winding effect better, you can preheat the conductive rod for 1 hour, and after the prehe...

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Abstract

The present invention discloses a pure dry composite housing high-voltage sleeve and its production method. Its main insulating layer is a multilayer series-connected pure solie concentric ylinder insulating layer made up by at least using two kind of solid layers which are spaced and tightly combined, the insulating housing and connecting sleeve are tightly connected with external side of main insulating layer. The production method includes the following steps: using peoxy glass fibre wet winding-forming process to make semi-conductor band and glass fibre material coated with epoxy resin wind round the conducting bar according to sinesoid law to make main insulating layer, solidifying and surface processing, fixing connecting sleeve, mounting insulating housing, equalizing cover and wiring terminal, it contains no any oil or gas, can prevent leakage of oil and gas and explosion hidden peril, and its weight is light and small in volume, and cost is low.

Description

Technical field: [0001] The invention belongs to a high-voltage electrical device used when a high-voltage conductor in electric equipment passes through walls or other equipment (transformers, etc.) Background technique: [0002] At present, the high-voltage bushings used in the power system when the high-voltage lines pass through the wall or the grounding shell of the equipment contain conductive rods, main insulating layers, insulating jackets and connecting bushings, etc., and their structural forms basically have the following types: one is For the traditional oil-paper capacitor type and gas-insulated type, the insulating jackets are all porcelain sleeves. The main insulating layer of the oil-paper capacitor type is generally a multi-layer insulating layer made of insulating paper and aluminum foil strips (or semiconductor strips) at intervals. There is a gap between each layer, and the gap is filled with transformer oil. The main insulating layer Transformer oil is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04H01B7/00H01B7/02H01B7/17H01B17/58H02G3/04
CPCY02P20/141
Inventor 弥璞石旭庄仁平
Owner ZHONGNENG RUISITE ELECTRICAL BEIJING
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