Bushing

A bushing and insulating layer technology, applied in the direction of insulators, electrical components, insulators, etc., to achieve the effects of simple structure, elimination of partial discharge, and stable structure

Pending Publication Date: 2019-07-12
XIAMEN NAIDE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the partial discharge of the bushing is greatly affected by the temperature change factor, and it is urgent to solve this problem

Method used

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Embodiment Construction

[0020] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0021] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0022] refer to figure 1 , figure 2 and image 3 The bushing provided in this embodiment includes a conductive rod 1 and a first insulating layer 10, a first graphite conductive layer 20, and an insulating shell 30 ...

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Abstract

The invention provides a bushing which comprises a conducting rod and a first insulating layer, a first graphite conducting layer and an insulating casing formed in the outer periphery of the conducting rod successively. The first graphite conducting layer makes electric contact with the conducting rod, an annular outer shielding structure is embedded into the insulating casing, and comprises a second insulating layer and a second graphite conducting layer coating the external surface of the second insulating layer, and a metal lead making electric contact with the second graphite conducting layer is fixed to the insulating casing. Thus, partial discharge caused by influence of temperature change factors is eliminated to largest extent, the bushing can be suitable for equipment of higher voltage, and the structure is simple.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a bushing for preventing partial discharge. Background technique [0002] Partial discharge is the abbreviation of partial discharge, which refers to the discharge that occurs between the electrodes but does not penetrate the electrodes. It is due to the weakness inside the insulation of the equipment or the defects caused in the production process, and repeated breakdown and discharge occur under the action of high electric field strength. phenomenon of extinguishing. It is manifested as the breakdown of gas in the insulation, the partial breakdown of solid or liquid medium in a small range, or the local breakdown discharge caused by the concentration of field strength at the edge and sharp corner of the metal surface. The energy of this discharge is very small, so its short-term existence does not affect the insulation strength of electrical equipment. However, if the elec...

Claims

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Application Information

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IPC IPC(8): H01B17/58H01B17/64
CPCH01B17/64H01B17/583H01B17/586
Inventor 林春华刘灿江刘灿彬高剑英
Owner XIAMEN NAIDE ELECTRIC
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