High-tension switch electrical equipment SF6 gas water content on-line monitoring device

A technology of electrical equipment and high-voltage switches, which is applied in the direction of instruments and analytical materials, can solve the problems of personnel health threats, inaccurate measurement, poor precision, etc., and achieve the solution of unstable test data, accurate measurement data, and convenient reading of data Effect

Inactive Publication Date: 2006-01-25
陈虎
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Problems solved by technology

[0003] 1) It is necessary to take the dew point meter to the site for measurement frequently. Each measurement must be carried out one by one. The on-site measurement personnel must do a good job of manual records, statistics, and comparisons. It cannot be done online, and remote monitoring cannot be realized.
[0004] 2) Each measurement must discharge a certain amount of SF from the gas container of the h

Method used

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  • High-tension switch electrical equipment SF6 gas water content on-line monitoring device
  • High-tension switch electrical equipment SF6 gas water content on-line monitoring device
  • High-tension switch electrical equipment SF6 gas water content on-line monitoring device

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Embodiment Construction

[0025] Such as figure 1As shown, its circuit connection is: phase A pressure transmitter 1 is connected with phase A pressure signal processing amplifier circuit 10; phase A temperature sensor 2 is connected with phase A temperature signal processing amplifier circuit 11; phase A humidity sensor 3 is connected with phase A temperature signal processing amplifier circuit 11; The humidity signal amplification processing circuit 12 is connected; the B-phase pressure transmitter 4 is connected with the B-phase pressure signal processing amplification circuit 13; the B-phase temperature sensor 5 is connected with the B-phase temperature signal amplification processing circuit 14; the B-phase humidity sensor 6 It is connected with phase B humidity signal amplification processing circuit 15; phase C pressure transmitter 7 is connected with phase C pressure signal amplification processing circuit 16; phase C temperature sensor 8 is connected with phase C temperature sensor 17; phase C ...

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Abstract

The invention is a device for on-line monitoring the water content of the SF6 gas of high voltage switching electrical appliance, characterized in mainly comprising power supply module, three signal process amplifying circuits, multi-channel switch, MCU, communication switching circuit, and three temperature sensors, three pressure transducers and three humidity sensors for measuring for three SF6 gas rooms in A-B-C three-phase separately-acting high voltage switch, etc. The device has the following advantages: 1. it can realize on-line and remote monitoring; 2. every sensor has good output linearity and the humidity accuracy is above twice higher than the national standard; 3. it is applied to high frequency electric field and outdoor environments; 4. it largely reduce the effluence of SF6 gas, thus assuring the health of operating personnel and reducing environmental pollution, and having completely important significance.

Description

technical field [0001] The invention relates to an on-line status monitoring device for high-voltage switching electrical equipment, especially for SF in containers of equipment such as high-voltage circuit breakers and GIS. 6 The invention relates to on-line monitoring of gas water content, which belongs to the technical field of power equipment measurement. Background technique [0002] SF 6 Gas is an inert gas with good insulation and arc extinguishing properties. Its advantages are more and more recognized by people, and it has been widely used in high-voltage circuit breakers, GIS and other equipment in the past two decades. Thanks to SF 6 During the transmission process of gas in high-voltage power transmission and transformation, SF 6 When the moisture content of the gas reaches a certain level, the SF 6 Under the action of electric charge, the decomposition product of gas produces some toxic gases through hydrolysis reaction; at the s...

Claims

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Application Information

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IPC IPC(8): G01N35/00
Inventor 陈书欣
Owner 陈虎
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