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A three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar

A three-layer co-extrusion and high-voltage insulation technology, which is applied in the direction of insulated conductors, insulated cables, rubber insulators, etc., can solve the problems of maintenance, high frequency of maintenance, heat generation, and high requirements for busbar installation accuracy, and achieve small end surface potential and improved The effect of insulation level and field strength uniformity

Active Publication Date: 2017-11-28
JIANGSU SHILIN ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The high-voltage power transmission of major thermal and hydropower plants, nuclear power plants, and high-voltage transmission and distribution stations will use traditional common-phase and out-of-phase busbars, but the traditional busbars require high installation accuracy, and the busbar joints are easy to loosen and generate heat during operation.

Method used

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  • A three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar
  • A three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A preparation method of a three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar is as follows:

[0056] (1) T2 red copper is used as the material to make the main body of the tube bus with a hollow cylindrical structure;

[0057] (2) Add the raw materials of the inner screen semi-conductive layer, insulating layer and outer screen semi-conductive layer into the three hoppers of the three-layer co-extrusion extruder, start the three-layer co-extrusion extruder and simultaneously put the inner screen semi-conductive layer, The insulating layer and the outer screen semi-conductive layer are extruded to form a protective layer with an integrated structure, and the protective layer is fixed and covered on the outside of the main body of the busbar; wherein, the composition of the inner screen semi-conductive layer raw material is calculated by weight: graphite 20 parts , 11 parts of copper powder, 5.5 parts of zinc powder, 10 parts of epoxy resin, 4 ...

Embodiment 2

[0060] A preparation method of a three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar is as follows:

[0061] (1) T2 red copper is used as the material to make the main body of the tube bus with a hollow cylindrical structure;

[0062](2) Add the raw materials of the inner screen semi-conductive layer, insulating layer and outer screen semi-conductive layer into the three hoppers of the three-layer co-extrusion extruder, start the three-layer co-extrusion extruder and simultaneously put the inner screen semi-conductive layer, The insulation layer and the outer screen semi-conductive layer are extruded to form a protective layer with an integrated structure, and the protective layer is fixed and covered on the outside of the main body of the busbar; wherein, the composition of the inner screen semi-conductive layer raw material is calculated by weight: graphite 15 parts , 10 parts of copper powder, 5 parts of zinc powder, 5 parts of epoxy resin, 3 part...

Embodiment 3

[0065] A preparation method of a three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar is as follows:

[0066] (1) T2 red copper is used as the material to make the main body of the tube bus with a hollow cylindrical structure;

[0067] (2) Add the raw materials of the inner screen semi-conductive layer, insulating layer and outer screen semi-conductive layer into the three hoppers of the three-layer co-extrusion extruder, start the three-layer co-extrusion extruder and simultaneously put the inner screen semi-conductive layer, The insulation layer and the outer screen semi-conductive layer are extruded to form a protective layer with an integrated structure, and the protective layer is fixed and covered on the outside of the main body of the busbar; wherein, the composition of the inner screen semi-conductive layer raw material is calculated by weight: graphite 25 parts , 12 parts of copper powder, 6 parts of zinc powder, 15 parts of epoxy resin, 6 pa...

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Abstract

The invention relates to a three-layer co-extruded ethylene-propylene high-voltage insulating pipe bus, which includes a pipe bus made of T2 red copper. The pipe bus includes a pipe bus main body and a pipe bus connecting part, and the pipe bus main body is hollow. Cylindrical structure, the connection part of the pipe busbar is an elliptical structure formed by pressing the main body of the pipe busbar. The inner walls of the pipe busbar connection parts contact each other and fit into a straight line. The connecting member is a tapered structure, the main body of the pipe busbar, the connecting part of the pipe busbar and the connecting member are made by a three-layer co-extrusion process, with advanced design, convenient installation, fast, low carbon, environmental protection, energy saving, High cost performance, which fills the gap in China, the bus joints are not easy to loosen and generate heat during operation, and the frequency of maintenance and maintenance is low, which greatly reduces the cost of use.

Description

technical field [0001] The invention relates to a busbar, in particular to a three-layer co-extruded ethylene-propylene high-voltage insulating tube busbar. Background technique [0002] The high-voltage power transmission of major thermal hydropower plants, nuclear power plants, and high-voltage transmission and distribution stations will use traditional common-phase and out-of-phase busbars, but the traditional busbars require high installation accuracy, and the busbar joints are easy to loosen and generate heat during operation. . Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a three-layer co-extruded ethylene-propylene high-voltage insulating pipe busbar, which has advanced design, convenient and fast installation, low carbon, environmental protection, energy saving, and high cost performance. Looseness, heat generation, low maintenance and maintenance frequency, which greatly reduces the cost of use. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B9/02H01B7/02H01B3/28H01B13/00
Inventor 陈道华马道平
Owner JIANGSU SHILIN ELECTRIC EQUIP
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