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Electrical systemwith online samplingchecking function and checking method of electrical system

A technology of electrical systems and functions, applied in the field of electric power, can solve problems such as flashover, hazards, and reduction of insulation strength on the surface of insulating parts

Pending Publication Date: 2019-11-15
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

Method used

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  • Electrical systemwith online samplingchecking function and checking method of electrical system
  • Electrical systemwith online samplingchecking function and checking method of electrical system
  • Electrical systemwith online samplingchecking function and checking method of electrical system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] Such as figure 1 As shown, an electrical system with an online sampling verification function provided by Embodiment 1 of the present invention includes: electrical equipment 8, a gas density relay 1, a pressure sensor 2, a temperature sensor 3, a valve 4, a pressure adjustment mechanism 5, an online Verification contact signal sampling unit 6 , intelligent control unit 7 , multi-way connector 9 and air supply interface 10 . The gas density relay 1 , valve 4 , pressure sensor 2 , pressure regulating mechanism 5 and air supply interface 10 are arranged on the multi-way joint 9 .

[0176]Specifically, the electrical equipment 8 is provided with an air chamber inside, and the air chamber is filled with insulating gas. The air inlet of the valve 4 is sealed and connected to the electrical equipment 8, and communicates with the air chamber of the electrical equipment 8, and the gas outlet of the valve 4 is communicated with the gas density relay 1 through a multi-way joint ...

Embodiment 2

[0203] Such as image 3 As shown, an electrical system with an online sampling verification function provided by Embodiment 2 of the present invention includes: a gas density relay 1, a pressure sensor 2, a temperature sensor 3, a valve 4, a pressure adjustment mechanism 5, and an online verification contact signal Sampling unit 6, intelligent control unit 7, electrical equipment 8, multi-way joint 9, air supply interface 10, self-sealing valve 11. One end of the self-sealing valve 11 is sealingly connected to the electrical equipment 8, and the other end of the self-sealing valve 11 is in communication with the valve 4; the air inlet of the valve 4 is sealingly connected to the self-sealing valve 11, and the valve 4 The air outlet of the air outlet is connected with the multi-way joint 9. The gas density relay 1 is installed on the multi-way joint 9; the pressure sensor 2 and the temperature sensor 3 are arranged on the gas density relay 1, and the pressure sensor 2 is conne...

Embodiment 3

[0206] Such as Figure 4 As shown, an electrical system with an online sampling verification function provided by Embodiment 3 of the present invention includes: a gas density relay 1, a pressure sensor 2, a temperature sensor 3, an electric valve 4, a pressure adjustment mechanism 5, and an online verification contact Signal sampling unit 6 , intelligent control unit 7 , electrical equipment 8 , multi-way joint 9 , air supply interface 10 , and valve 12 . One end of the valve 12 is sealingly connected to the electrical equipment 8, and the other end of the valve 12 is in communication with the valve 4; the air inlet of the valve 4 is sealingly connected to the valve 12, and the air outlet of the valve 4 Connect with multi-way connector 9. The gas density relay 1 is installed on the multi-way joint 9; the pressure sensor 2, the temperature sensor 3, the online verification contact signal sampling unit 6 and the intelligent control unit 7 are arranged together. The pressure r...

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Abstract

The invention provides an electrical systemwith an online sampling checking function and a checking method of the electrical system. The electrical system and the checking method are applied to high-pressure and medium-pressure electrical equipment. The electrical system comprises electric equipment, a gas density relay, a gas density detection sensor, a valve, a pressure adjusting mechanism, an online check contact signal sampling unit and an intelligent control unit. Rising and dropping of pressure are adjusted by the pressure adjusting mechanism, so that the gas density relay of the electrical equipment perform a contact action, the contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit, the intelligent control unit detects anaction value and / or a return value of an alarm and / or lockout contact signal according to a density value during contact action, the checking work of the gas density relay can be completedwithout a maintainer coming to the site, so that reliability of a power grid is greatly improved, the efficiency is improved, the cost is reduced, meanwhile, mutual self-checking between the gas density relay and the gas density detection sensor is realized, and maintenance-free operation is realized.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an electrical system (or electrical equipment) with an online sampling and verification function applied to high-voltage and medium-voltage electrical equipment and a verification method thereof. Background technique [0002] The gas density relay is generally used to monitor and control the density of insulating gas in high-voltage electrical equipment. It has a contact signal control circuit inside. The gas circuit of the gas density relay is connected to the gas chamber of the high-voltage electrical equipment. When a gas leak is detected, The contact action of the gas density relay generates a contact signal, and the contact signal control circuit sends an alarm or locks according to the contact signal, so as to realize the safe operation protection of electrical equipment. [0003] At present, SF6 (sulfur hexafluoride) electrical equipment has been widely used in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01N9/00H01H35/26
CPCG01R31/3275G01N9/00H01H35/26G01N9/26G01R31/3271H01H33/563G01N9/002G01N2009/006G01R15/202G01R19/0092G01R31/3278
Inventor 夏铁新贺兵常敏郭正操廖海明金海勇王恩林
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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