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Method for detecting SF6 decomposition product and checking SF6 density relay

A technology of density relay and decomposition products, which is applied to the structural details of gas analyzers, measurement of electricity, and measurement of electrical variables, etc., can solve problems such as damage, insecurity, and troublesome work.

Inactive Publication Date: 2016-07-27
STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1
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Problems solved by technology

In this way, the maintenance personnel frequently climb the ladder to install and disassemble the gas-taking joint. Degree of damage, prone to tripping and outgassing

Method used

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  • Method for detecting SF6 decomposition product and checking SF6 density relay

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specific Embodiment approach 1

[0010] Specific implementation mode one: refer to figure 1 Specifically describe this embodiment, the detection SF described in this embodiment 6 Decomposition products and calibration SF 6 The method of density relay is realized based on a kind of device, and this device comprises SF 6 Decomposition product meter gas line, conversion gas connection and SF 6 Density relay calibrator air guide tube, the conversion air guide connector includes a connector air inlet and a connector air outlet, the connector air inlet is connected to the connector air outlet, and the connector air inlet is connected to the SF 6 The air inlet structure of the decomposition product instrument is the same, and the air outlet of the connecting piece is the same as that of the SF 6 The air inlet of the air duct of the density relay calibrator matches, and the inlet of the connector is used to connect the SF 6 The air outlet of the air duct of the decomposition product instrument, the air outlet of ...

specific Embodiment approach 2

[0013] Specific implementation mode two: this implementation mode is for detecting SF described in specific implementation mode one 6 Decomposition products and calibration SF 6 The method of the density relay is further described. In this embodiment, the conversion gas guide connector is a brass connector.

[0014] Brass has the characteristics of good sealing, corrosion resistance, no water absorption, and long service life.

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Abstract

Detect SF 6 Decomposition products and calibration SF 6 Method for density relays involving detection of SF 6 Decomposition products and calibration SF 6 The technical field of density relays. In order to realize by SF 6 Decomposition products detected SF 6 When the density relay is calibrated, it is not necessary to replace the entire set of connecting pipelines. Using SF 6 The air duct of the decomposition product meter connects the equipment under test and the SF 6 Decomposition product meter, then using SF 6 Decomposition product meter for SF 6 Decomposition products were detected; SF 6 The gas outlet of the gas guide tube of the decomposition product instrument is connected to the inlet port of the connector of the conversion gas guide connector, and the gas outlet of the connector is connected to the SF 6 Air Inlet for Density Relay Calibrator Air Line, SF 6 The air outlet of the air duct of the density relay calibrator is connected to SF 6 The measurement port of the density relay calibrator, and then use the SF 6 Density Relay Calibrator for SF 6 The density relay is calibrated. Suitable for detecting SF 6 Decomposition products and calibration SF 6 density relay.

Description

technical field [0001] The present invention relates to the detection of SF 6 Decomposition products and calibration SF 6 The technical field of density relays. Background technique [0002] Existing technology to detect SF 6 Decomposition products of electrical equipment and calibration SF 6 The density relay requires two instruments and two sets of gas-guiding connecting pipes. SF 6 The specifications and shapes of the air inlet of the decomposition product meter and the measurement port of the density relay calibrator are different. When conducting field tests, when the SF 6 After the decomposition products are detected, it is necessary to remove the entire set of connecting pipelines on the equipment under test and replace them with the gas-conducting connecting pipes of the density relay calibrator before performing SF. 6 Density relay calibration. In this way, the maintenance personnel frequently climb the ladder to install and disassemble the gas-taking joint....

Claims

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Application Information

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IPC IPC(8): G01N33/00G01R31/327
CPCG01N33/0009G01R31/3278
Inventor 金卫光曲虹赵钢董化新孟德惠尹洪涛赵志伟
Owner STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO
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