GIS cable device

A technology of cable device and isolation knife switch, which is applied in the field of power transformation, can solve the problems of low test efficiency and low safety, and achieve the effect of convenient test, good safety and improved test efficiency

Pending Publication Date: 2022-03-22
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the purpose of this application is to provide a GIS cable device to solve the problems of low test efficiency and low safety

Method used

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.

[0034] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the descr...

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Abstract

The invention discloses a GIS cable device, which relates to the technical field of power transformation and comprises a T-joint cylinder and a test window. Wherein the insulation shielding ring covers the grounding terminal of the T-joint cylinder, so that the problems of too strong local electric field and insulation breakdown caused by insufficient air gaps are solved, the overall insulation and voltage resistance level of the grounding terminal is improved, a high-voltage bushing machine core does not need to be used for testing when an insulation test and a fault detection test are carried out, and the test efficiency is improved. Furthermore, the grounding terminal is packaged in the box body of the test window, so that the grounding terminal has certain protection, and the safety is better; moreover, the grounding terminal is detachably connected with the grounding bar group, and the box door which can be opened and closed is configured on the box body, so that when a test is carried out, the connection between the grounding terminal and the grounding bar group is removed, and then the grounding terminal is connected with the fault detection device for detection, the detection test is convenient, and the detection efficiency is further improved.

Description

technical field [0001] The present application relates to the technical field of power transformation, in particular to a GIS cable device. Background technique [0002] With the continuous development of power distribution technology, cable-based transmission lines and GIS-based substation equipment are becoming more and more popular. T-connectors and cables are hard-connected in more and more forms in substations. [0003] In the case of hard connection between GIS and cable, if there is a permanent fault on the cable, it is necessary to untie the grounding terminal for insulation test and fault finding test. However, the current grounding terminal has a limited withstand voltage level and may not be able to break through the insulation damage point. Therefore, a high-voltage bushing must be used for the test. The operation steps include: deflate, remove the barrel, install the bushing, do the test, remove the bushing, The whole process of cylinder loading, inflation, GIS...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1272
Inventor 严文豆霍艳萍樊冬梅程志
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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