Composite insulator big and small strapped configuration structure for super/extra high voltage transmission line

A technology of composite insulators and transmission lines, applied in the direction of suspension/strain insulators, circuits, insulators, etc., can solve the problems of accidents, non-shielding, limited voltage equalization effect, etc.

Inactive Publication Date: 2008-05-07
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has a limited voltage equalizing effect and cannot effectively shield the electric field at the interface formed by the end of the insulator fittings and the silicone rubber sheath, thus causing accidents

Method used

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  • Composite insulator big and small strapped configuration structure for super/extra high voltage transmission line
  • Composite insulator big and small strapped configuration structure for super/extra high voltage transmission line
  • Composite insulator big and small strapped configuration structure for super/extra high voltage transmission line

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Embodiment Construction

[0024] figure 1 It is a structural diagram of the large and small voltage equalizing rings of composite insulators for EHV / UHV transmission lines. The large and small voltage equalizing rings are composed of bracket A and ring B. According to the applicant's experiments, it is proved that no matter the shape of ring B is a ring, an open Ring or racetrack-shaped ring, all can finish the purpose of the present invention well.

[0025] figure 2 ~Figure 7 is an embodiment of the present invention, and its common structure is: a composite insulator unit 1, a large voltage equalizing ring unit 2 on the side of the high-voltage conductor, a small voltage equalizing ring unit 3 and a large voltage equalizing ring on the side of the cross arm of the tower The unit 4 and the small equalizing ring unit 5 are assembled and installed.

[0026] The configuration method of the present invention is as follows: based on the composite insulator unit 1, one end thereof is connected to the hig...

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Abstract

The present invention discloses a collocation structure of composite insulator large and small voltage-sharing rings for extra ultra high voltage power transmission line. Said structure is characterized by that in high-voltage conducting wire side and pole tower cross-arm side of composite insulators for high-voltage power transmission line the large and small voltage-sharing rings are respectively collocated so as to form the invented structure. The composite insulator is long rod insulator made up by using silicon rubber and epoxy organic material through a certain preparation process, the large and small voltage-sharing rings are made up by using metal material, said large and small voltage-sharing rings are formed into a whole body, and the form of ring is circular ring, opened ring or racetrack ring.

Description

technical field [0001] The invention belongs to the technical field of insulators for high-voltage, ultra-high-voltage, and extra-high-voltage overhead transmission lines, and relates to a voltage equalizing structure for composite insulators used in AC and DC high-voltage transmission lines, in particular to a configuration of large and small voltage equalizing rings for composite insulators of high-voltage transmission lines In this structure, the large voltage equalizing ring, small voltage equalizing ring and composite insulator are arranged on the side of the high voltage conductor and the side of the tower cross arm of the high voltage transmission line, which can improve the electric field distribution at the end of the composite insulator and reduce the electric corrosion at the place where the electric field is concentrated on the conductor side , which is of great significance to improve the safe and reliable operation of high-voltage transmission lines. technical b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/42H01B17/44H01B17/38H01B17/04
Inventor 彭宗仁刘鹏高乃奎
Owner XI AN JIAOTONG UNIV
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