Gis

A technology of arm box and moving contact is applied in GIS. It can solve the problems of aging insulation and unreliability of insulation sleeves and insulation pads, and achieve the effect of being conducive to miniaturization, ensuring stability, and ensuring insulation requirements.

Active Publication Date: 2020-05-12
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a GIS to solve the technical problem of unreliable insulation caused by the aging phenomenon of the insulation sleeve and the insulation pad in the prior art that are prone to aging in the atmospheric environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 2 and image 3 As shown, the GIS includes a GIS cylinder 33 and a crank box 10, the crank box 10 has a cylinder connection end, and the cylinder connection end is fixedly connected to the GIS cylinder 33, and the cylinder connection end is provided with a flange connection plate 15, A movable contact seat is fixedly mounted on the flange connection plate 15, and a movable contact 17 is guided and installed in the movable contact seat, and the movable contact 17 is in contact with the static contact in the GIS barrel 33 to realize grounding. A crank arm 20 is provided in the crank arm box, and a drive shaft 29 is installed on the crank arm box 10 for rotation. When the crank arm 20 is driven to swing, the movable contact 17 is driven by the crank arm 20 to move, so as to realize the insertion and separation of the movable contact 17 and the static contact.

[0042] Such as figure 2 and Figure 4 As shown, the flange connection plate 15 is a metal pla...

Embodiment 2

[0058] The difference from Embodiment 1 is that the flange connection plate is an insulating seat, no cylinder perforation is provided on the flange connection plate, and the moving contact seat only includes a column guide body, which is embedded in the flange connection plate.

Embodiment 3

[0060] The difference from Embodiment 1 is that the connection plate body and the columnar guide body are integrally structured. At this time, the hole diameter of the column body on the flange connection plate is required to be larger than the maximum diameter of the columnar guide body, so that the columnar guide body can pass through the flange. Lan connection plate. In other embodiments, the connection plate body and the columnar guide body can be arranged separately, but the fixed connection is realized by welding.

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PUM

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Abstract

The invention relates to a GIS. The GIS comprises: a GIS cylinder; a crank arm box fixedly connected to the GIS cylinder, wherein a moving contact seat is arranged at one end, close to the GIS cylinder, of the crank arm box; a moving contact assembled in the moving contact seat in a guiding manner; a crank arm arranged in the crank arm box, wherein the crank arm is in transmission connection withthe moving contact; a contact seat insulator arranged between the moving contact seat and the crank arm box, wherein the moving contact seat is connected to the crank arm box through the contact seatinsulator so as to form insulation with the crank arm box, the moving contact seat is provided with a protruding part, and the protruding part protrudes towards the GIS cylinder, the crank arm box isprovided with a grounding terminal, and a terminal insulator is arranged between the grounding terminal and the crank arm box, the grounding terminal is provided with an outer wiring end and an innerwiring end, the outer wiring end is located outside the connecting lever box and used for being connected with a grounding wire, the inner wiring end is located inside the crank arm box, and a switching conductor is arranged between the side, facing the crank arm, of the moving contact seat and the inner wiring end so as to achieve connection between the grounding terminal and the moving contact seat.

Description

technical field [0001] The present invention relates to a GIS. Background technique [0002] Gas-insulated metal-enclosed switchgear (GIS for short) is an important power transmission and distribution equipment, and the grounding switch is the main component of GIS, which is used for reliable grounding of the main circuit of GIS. According to the use requirements of the power grid, the main circuit of the fast grounding switch adopts a special grounding wire to directly ground the grid, instead of grounding through the GIS cylinder and bracket. Therefore, an insulation design is required between the moving contact of the earthing switch and the GIS cylinder. [0003] A GIS in the prior art, the insulation between the moving contact and the GIS cylinder is as follows: figure 1 As shown, an insulating flange 4 is provided between the crank box flange of the crank box 1 and the cylinder flange of the GIS cylinder 6, so as to realize the insulation between the crank box 1 and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/00H02B13/035H02B13/075
CPCH02B13/005H02B13/0358H02B13/075
Inventor 赵利军李金狮刘亮徐朋冲殷鹏鑫司昌杰邢大淼
Owner HENAN PINGGAO ELECTRIC
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