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Production process of non-corona wires for high-voltage test

A corona-free wire and manufacturing process technology, applied in cable/conductor manufacturing, circuit/collector parts, electrical components, etc., can solve the problems of difficulty in obtaining finished products, fixed position, high price, etc., and achieve low cost and weight. Robust, easy-to-wire effect

Active Publication Date: 2011-01-19
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type is easy to obtain materials, heavy, cannot be bent, and requires a large number of insulators for support or suspension, and the position needs to be fixed; the second type is light in weight and expensive, and it is difficult to obtain finished products in the market

Method used

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  • Production process of non-corona wires for high-voltage test
  • Production process of non-corona wires for high-voltage test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The manufacturing process of the halo-free wire for the high voltage test of the present embodiment comprises the following steps:

[0027] 1) Raw material preparation: choose the non-corona wire of the anti-static exhaust duct with a length of 8mΦ300 as the main frame, and choose the red copper wire with a length of 8cm and a diameter of Φ3 as the electrical and mechanical connection parts, and the material with uniform tension at the connection and the material with uniform electric field Choose thick transparent tape and conductive tape; the wire is a hollow metal tube;

[0028] 2) Assembling the halo-free wire: first, connect the skeleton with high strength, that is, connect the two skeleton units end to end, and use copper wire to suture every 35mm at the joint. Lightly tap with a small wooden hammer to close the circle, and then use transparent tape to bind the sutures. When binding, extend 45mm to the unsewed parts of the two skeletons. Bundle a total of 3 circle...

Embodiment 2

[0033] The manufacturing process of the halo-free wire for the high voltage test of the present embodiment comprises the following steps:

[0034] 1) Raw material preparation: choose anti-static exhaust duct non-corona wire with a length of 8mΦ500 as the main frame, choose copper wire with a length of 8cm and a diameter of Φ3 as the electrical and mechanical connection parts, materials with uniform tension at the joints and materials with uniform electric field Choose thick transparent tape and conductive tape; among them, choose hollow metal cylinder for wire;

[0035] 2) Assembling the halo-free wire: first, connect the skeleton with high strength, that is, connect the two skeleton units end to end, and use copper wire to suture every 50mm at the joint. Lightly tap with a small wooden hammer to close the circle, and then use transparent tape to bind the sutures. When binding, extend 60mm to the unsewn parts of the two skeletons. Bundle a total of 5 circles for even tension t...

Embodiment 3

[0040] The manufacturing process of the halo-free wire for the high voltage test of the present embodiment comprises the following steps:

[0041] 1) Raw material preparation: choose anti-static exhaust duct non-corona wire with a length of 8mΦ500 as the main frame, choose copper wire with a length of 8cm and a diameter of Φ3 as the electrical and mechanical connection parts, materials with uniform tension at the joints and materials with uniform electric field Choose thick transparent tape and conductive tape; among them, choose hollow metal cylinder for wire;

[0042] Step 2): Assembling the halo-free wire: first, connect the skeleton with high strength, that is, connect the two skeleton units end-to-end, and suture every 40mm with copper wire at the joint, and the protrusions produced after suturing must use small glue Tap with a hammer or a small wooden hammer to close the circle, and then use transparent tape to bind the sutures. When binding, extend 50mm to the unsewn pa...

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Abstract

The invention relates to a production process of non-corona wires for a high-voltage test. The process is characterized by comprising the following steps: 1) preparing raw materials; 2) assembling the non-corona wires, wherein the framework is connected in high intensity, namely two framework units are connected with each other end to end; the connection part is sewed by a copper wire in each 35-50mm; the bulge generated after sewing is tapped for round formation by a small rubber hammer or a small wooden hammer, and then the sewed part is bound by a transparent tape, when binding, extending to the non-sewed part of the two frameworks for 45-60mm;the sewed part is bound for 3-5 circles to perform tensile force uniform treatment; a conductive tape is used for covering the bound part on the framework and extending outwards 5-20mm for performing electric filed uniform treatment; 3) detecting the finished products; 4) repairing. The process is featured with lower production cost, small investment for equipment, light weight, favorable flexibility, and high applicable voltage class.

Description

[technical field] [0001] The invention relates to a wire, in particular to a halo-free wire for a high voltage test. [Background technique] [0002] With the rapid development of EHV and UHV DC engineering construction in my country, the voltage level of various power equipment is also getting higher and higher. In many routine tests or type tests of high-voltage power equipment, AC withstand voltage and partial discharge tests and DC withstand voltage and partial discharge tests are included. [0003] After the test voltage is increased, if the commonly used thin conductive wire is used, the corona phenomenon will become very serious, and the nearby air will be ionized in large quantities, which may cause flashover in the withstand voltage test of the sample. In addition, sound and light are the two major elements for the test site personnel to judge whether there is an abnormal situation, and the corona of the wire will generate a lot of noise, which will affect the test ...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01R43/00
Inventor 周军川李跃温家良于坤山孙立波王毅
Owner CHINA ELECTRIC POWER RES INST
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