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Novel SF6 insulated vacuum load switch cabinet

A vacuum load, SF6 technology, applied in switchgear, switchgear setting, substation/switchgear board/panel/desk, etc., can solve problems such as short life, reduced product insulation performance, charged body corrosion, etc., to achieve structural Compact, long life, low cost effect

Inactive Publication Date: 2016-06-01
江苏华厦电力成套设备有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, most of the 10kV load switchgear designs in my country use air insulation or SF6 as the arc extinguishing quality. The insulation distance is designed according to air insulation. The cabinet size is relatively large, and the charged body is exposed. The corrosion of the product reduces the insulation performance of the product and the life is short; the load switch cabinet using SF6 as the arc extinguishing quality, the arc generated during the breaking process is easy to contaminate and damage the electrical components in the cabinet, which affects the overall performance of the switch. High SF6 gas pressure, it is affected by air pressure when used at high altitude, and the failure rate is high

Method used

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  • Novel SF6 insulated vacuum load switch cabinet
  • Novel SF6 insulated vacuum load switch cabinet
  • Novel SF6 insulated vacuum load switch cabinet

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Embodiment Construction

[0014] Refer below figure 1 , figure 2 , image 3 The present invention is described:

[0015] SF6 insulated vacuum load switch includes: cabinet 1, air box 2, solid-sealed pole 3, busbar connection static contact 4, isolating knife assembly 5, grounding switch 6, outlet bushing 7, current transformer 8, electromagnetic spring mechanism 9.

[0016] like figure 1 , 2 As shown, the fully sealed gas box 2 is installed on the upper rear part of the cabinet body 1, and the solid-sealed pole 3 is installed in the middle of the gas box 2. The solid-sealed pole 3 is connected to the main shaft 18 by nut locking, and the solid-sealed pole 3 is installed above The isolating knife assembly 5 and the busbar are connected to the static contact 4, the grounding switch 6 is installed at the bottom of the gas box 2, the outlet bushing 7 is installed on the front panel of the lower part of the gas box 2, the current transformer 8 is set on the outlet bushing 7, and the front of the gas b...

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Abstract

The invention relates to a novel SF6 insulated vacuum load switch cabinet. A fully-sealed air tank is installed in the upper rear part of a cabinet body. Solid-sealed polar poles are installed in the middle of the cabinet body. An isolating knife switch component and a bus connection static contact are installed above each solid-sealed polar pole. A grounding switch is installed at the bottom of the air tank. An outlet casing is installed on the lower front plate of the air tank. A current transformer sleeves the outlet casing. The outer middle of the front plate of the air tank is equipped with an electromagnetic spring mechanism which is used for controlling series asynchronous linkage between the solid-sealed polar poles and the isolating knife switch components. The invention provides an SF6 insulated vacuum load switch cabinet which has the advantages of simple structure, small size, stable insulation performance, long service life and low manufacturing cost.

Description

technical field [0001] The invention relates to high-voltage power distribution equipment in an electric power system, a novel SF6 insulated vacuum load switch cabinet. Background technique [0002] At present, most of the 10kV load switchgear designs in my country use air insulation or SF6 as the arc extinguishing quality, and the insulation distance is designed according to air insulation. The size of the cabinet is relatively large, and the charged body is exposed. The corrosion of the product reduces the insulation performance of the product and the life is short; the load switch cabinet using SF6 as the arc extinguishing quality, the arc generated during the breaking process is easy to pollute and damage the electrical components in the cabinet, affecting the overall performance of the switch, and the inside of the switch is full of High SF6 gas pressure, the use under high altitude conditions is affected by air pressure, and the failure rate is high. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/035H02B1/04
Inventor 庄大清郭卫星齐广化吴素珍
Owner 江苏华厦电力成套设备有限公司
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