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Gas insulation ring main unit

A gas-insulated, ring network cabinet technology, applied in the direction of electrical components, switchgear, switchgear settings, etc., can solve problems such as air pollution, and achieve the effect of avoiding damage and avoiding environmental pollution

Active Publication Date: 2020-03-31
HENAN PINGGAO GENERAL ELECTRIC CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a gas-insulated ring network cabinet to solve the technical problem of air pollution caused by the release of gas to the outside during pressure relief in the prior art

Method used

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specific Embodiment

[0035] like Figure 1 to Figure 8 As shown, among them, figure 1 and figure 2 The overall schematic diagram of the gas-insulated ring network cabinet is shown. The gas-insulated ring network cabinet includes a cabinet body 1, and the cabinet body 1 has a gas box 3, a cable room 4, an operating mechanism room 2, an inspection room 5 and an instrument room 7, wherein, The layout of each area and the components in the area are consistent with those in the prior art, and will not be repeated here. The improvement and core of the present invention lies in the pressure relief device 6 .

[0036] The structure of the pressure relief device 6 is as Figure 3 to Figure 8 As shown, the pressure relief device 6 includes a housing 61, composed of image 3 and Figure 4 It can be seen that the housing 61 includes a first-stage flange cylinder 611, a second-stage flange cylinder 612, a third-stage flange cylinder 613, a fourth-stage flange cylinder 614, and a fifth-stage flange cylind...

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Abstract

The invention relates to the technical field of power distribution equipment, in particular to a gas insulation ring main unit. The gas insulation ring main unit comprises a unit body, wherein a gas box, a cable chamber, an overhaul chamber and an instrument chamber are arranged in the unit body; an air box pressure relief hole for communicating the gas box with the cable chamber is formed in thegas box; the gas insulation ring main unit further comprises a pressure relief device which is arranged in the maintenance chamber and comprises a shell, a shell which is fixed to the gas box and covers a pressure relief hole of the gas box in a sealed mode, and a closed pressure relief cavity is formed in the shell or defined by the shell and the maintenance chamber, and a pressure relief part which is used for separating the gas box from the pressure relief cavity; wherein the pressure relief part which is used for being opened when the gas pressure in the gas box exceeds the bearing pressure of the pressure relief part so that the gas can be decompressed into the pressure relief cavity. The gas finally remains in the gas box and the pressure relief cavity and cannot leak, so that the injury to outside personnel is avoided, and the environmental pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of power distribution equipment, in particular to a gas-insulated ring main unit. Background technique [0002] The ring network cabinet is a group of electrical equipment for power transmission and distribution (high-voltage switchgear) installed in a metal or non-metal insulated cabinet or made into an assembled interval ring network power supply unit. Its core part adopts a circuit breaker or load switch, with It has the advantages of improving the performance of power supply parameters and power supply security. [0003] The ring network cabinet usually includes a cabinet body. The interior of the cabinet body is mainly divided into four areas: the instrument room, the gas box, the operating mechanism room and the cable room. There are circuit breakers, isolating switches and grounding switches inside the gas box. In order to ensure the insulation performance, The gas tank is usually filled with SF 6 T...

Claims

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Application Information

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IPC IPC(8): H02B13/035H02B13/025
CPCH02B13/025H02B13/035
Inventor 田凤雷王焕刘晓焱赵辉沈景贵关红伟张二勇朱向宇田红超郭忠贺王春生周凯王英东王旭陈波李康康马琰李美荣叶思远
Owner HENAN PINGGAO GENERAL ELECTRIC CO LTD
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