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a gis

A technology of crank box and moving contact, which is applied in GIS. field, it can solve the problems of unreliability, insulation sleeve and insulation pad are prone to aging insulation, etc., to achieve the effect of ensuring reliability, easy installation on the crank box, and favorable processing

Active Publication Date: 2022-05-17
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 with the GIS cylinder 33, and the cylinder connection end is provided with a flange connecting 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 p...

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, which comprises: a GIS cylinder body; a crank box, which is fixedly connected to the GIS cylinder body, and the end of the crank box close to the GIS cylinder body is provided with a moving contact seat; the moving contact is guided and assembled on the In the movable contact seat; the crank arm is set in the crank arm box, and the crank arm is connected to the movable contact by transmission; a contact seat insulator is arranged between the movable contact seat and the crank arm box, and the movable contact seat passes through the contact The insulator of the head seat is connected to the crank box to form insulation with the crank box; the moving contact seat has a protruding part, and the protruding part protrudes toward the GIS cylinder; the crank box is provided with a grounding terminal, A terminal insulator is provided between the ground terminal and the crank box; the ground terminal has an external terminal and an internal terminal, the external terminal is located outside the crank box and is used to connect the grounding wire, and the internal terminal is located inside the crank box. A transition conductor is provided between the side of the moving contact seat facing the crank arm and the inner terminal, so as to realize the connection between the ground 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 Patents(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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