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Gas density relay with sealing performance self-checking function and implementation method thereof

A technology of gas density and sealing performance, applied in the field of electric power, which can solve the problems of flashover, damage, and reduction of insulation strength on the surface of insulating parts

Pending Publication Date: 2020-08-04
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3) When the temperature drops, too much moisture may form condensation water, which will significantly reduce the insulation strength of the surface of the insulating part, or even flashover, causing serious damage
3) As for the leaking gas density relay, its performance will be greatly reduced. At the same time, the leaked oil will affect the reliable operation of electrical equipment. Online monitoring is required to detect and deal with it in time

Method used

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  • Gas density relay with sealing performance self-checking function and implementation method thereof
  • Gas density relay with sealing performance self-checking function and implementation method thereof
  • Gas density relay with sealing performance self-checking function and implementation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] figure 1 It is a schematic structural diagram of a gas density relay with sealing performance self-test for high and medium voltage electrical equipment according to Embodiment 1 of the present invention. Such as figure 1 As shown, a gas density relay or a gas density monitoring device with sealing performance self-test mainly includes: a gas density relay body 1 , a gas leakage performance diagnostic detector 3 and an intelligent control unit 7 . The gas leakage performance diagnosis detector 3 described in this embodiment is arranged outside the gas density relay body 1 and includes an electric control valve 301 and a pressure sensor 302 . The implementation process of this example is that one end of the electric control valve 301 is provided with an air inlet port 30101 connected to the electrical equipment, and the air inlet interface 30101 is connected with the electrical equipment through the equipment connection joint 110, and the other end of the electric contr...

Embodiment 2

[0088] figure 2 It is a schematic diagram of the front structure of a gas density relay with sealing performance self-test for high-voltage electrical equipment in Embodiment 2 of the present invention. Such as figure 2 As shown, the difference from Embodiment 1 is that the gas leakage performance diagnostic detector 3 in this embodiment is a pressure sensor, and the pressure sensor 3 is arranged in the housing 102 of the gas density relay body 1 and connected to the intelligent control unit 7 . The pressure sensor 3 uploads the collected pressure signal P in the casing 102 of the gas density relay body 1 to the intelligent control unit 7 . If the pressure signal P in the housing 102 of the gas density relay body 1 壳 Gradually become larger, the intelligent control unit 7 or the backstage send an air leakage alarm signal or / and information; or, the pressure signal P in the housing 102 of the gas density relay body 1 壳 The ascent speed PS 壳Z Higher than the set raising s...

Embodiment 3

[0091] image 3 It is a structural schematic diagram of a gas density relay or a gas density monitoring device with sealing performance self-test for high-voltage electrical equipment in Embodiment 3 of the present invention. Such as image 3 As shown, the gas density relay or gas density monitoring device with sealing performance self-test according to the third embodiment of the present invention mainly includes: a gas density relay body 1 , a sealing performance detector 3 and an intelligent control unit 7 . The sealing performance detector 3 includes a voltage actuator 305, an electrode 306, and a current detector 303, and the voltage actuator 305, the electrode 306, and the current detector 303 can be arranged in the housing 102 of the gas density relay body 1; or , the sealing performance detector 3 may also include a gas cover 304, the gas cover 304 is arranged outside the gas density relay body 1, and communicates with the housing 102 of the gas density relay body 1 t...

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Abstract

The application provides a gas density relay with a sealing performance self-checking function and an implementation method thereof. The gas density relay comprises a gas density relay body, a sealingperformance detector and an intelligent control unit. The sealing performance detector is communicated with a gas circuit of the gas density relay body or is communicated with a sealing cavity in thegas density relay body to obtain gas leakage information of the gas density relay body; the intelligent control unit is connected with the sealing performance detector and is used for receiving and / or calculating data or / and information monitored by the sealing performance detector and carrying out diagnosing to obtain the current sealing performance of the gas density relay body; or, the intelligent control unit uploads the received data or / and information to the background, and the background carries out diagnosis to obtain the current sealing performance of the gas density relay body. Thegas density relay is used for monitoring the gas density of gas-insulated or arc-extinguished electrical equipment and completing online gas leakage performance monitoring of the gas density relay atthe same time; and the operation and maintenance cost is reduced, and safe operation of a power grid is guaranteed.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a gas density relay which is applied to high-voltage and medium-voltage electrical equipment and has sealing performance self-test and its realization method. Background technique [0002] At present, SF6 (sulfur hexafluoride) electrical equipment has been widely used in the power sector and industrial and mining enterprises, which has promoted the rapid development of the power industry. In recent years, with the rapid economic development, the capacity of my country's power system has expanded rapidly, and the amount of SF6 electrical equipment has increased. The role of SF6 gas in high-voltage electrical equipment is arc extinguishing and insulation. If the density of SF6 gas in high-voltage electrical equipment decreases and the micro-water content exceeds the standard, it will seriously affect the safe operation of SF6 high-voltage electrical equipment: 1) The densit...

Claims

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Application Information

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IPC IPC(8): G01M3/16G01M3/24G01M3/20G01M3/38G01M3/26G01N9/00H01H35/26
CPCG01M3/16G01M3/24G01M3/20G01M3/38G01M3/26G01N9/00H01H35/2671G01M3/3236G01M3/2869G01N9/266
Inventor 金海勇夏铁新郭正操金海生谭庆
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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