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Capacitive insulation supporting device

An insulating support and capacitive technology, applied in the direction of insulators, supporting insulators, lead-in/through-type insulators, etc., can solve problems such as damage to insulating support devices, flashover of insulating support devices, etc.

Pending Publication Date: 2022-02-01
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the long-term power transmission process of the insulating support device in the GIL of the traditional technology, the power transmission conductor will accumulate charges on the surface of the insulating support device. Since the traditional technology uses fixed insulating posts, the surface charge will accumulate on some fixed position, so that when the charge accumulates to a certain extent, a flashover phenomenon will occur along the surface of the insulating support device, causing the insulating support device to be destroyed

Method used

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Embodiment Construction

[0038] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0039]Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0040] It can be understood that the terms "first", "second" and the like used in this application may be ...

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Abstract

The invention relates to a capacitive insulation supporting device. The device comprises a metal cylinder, a metal flange, an olive-shaped insulating supporting piece and a power transmission current-carrying conductor; and the metal flange is coaxially arranged in the metal cylinder, the two ends of the metal flange are fixedly connected with the inner side wall of the metal cylinder, the insulating supporting piece is coaxially arranged in the metal cylinder and fixed to the metal flange, and the power transmission current-carrying conductor is coaxially arranged with the insulating supporting piece and penetrates through the insulating supporting piece. A plurality of cylindrical electrode plates are coaxially arranged between the insulating supporting piece and the power transmission current-carrying conductor at intervals, the height difference values of every two adjacent cylindrical electrode plates are set to be equal, and the radial radius of each cylindrical electrode plate is adjusted according to the height of each electrode plate to make the radial radius of each electrode plate meet the same relational expression. Therefore, the radial capacitance and the axial field intensity in the device are equal. And the stability of the device is improved.

Description

technical field [0001] The present application relates to the technical field of power transmission equipment, in particular to a capacitive insulating support device. Background technique [0002] With the development of power transmission technology, GIL (gas-insulated metal enclosed transmission line, DC gas-insulated closed transmission line) has appeared. GIL has the advantages of small footprint, large transmission capacity, small maintenance, and little environmental impact. It is especially suitable for Large-capacity DC transmission scenarios with limited transmission overhead line corridors or limited external insulation size in harsh climates (alpine, high temperature, sandstorms), complex terrains (mountains, woodlands, uninhabited areas), high altitudes, and high seismic intensity. Since GIL is used in areas with harsh environments, how to improve the safety and reliability of GIL is an urgent problem to be solved. [0003] In traditional technology, the insula...

Claims

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Application Information

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IPC IPC(8): H01B17/14H01B17/28H01B17/42
CPCH01B17/145H01B17/28H01B17/42
Inventor 张晋寅韦晓星夏谷林吕金壮邓军张长虹潘志城谢志成
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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