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Electricity-heat combined aging and gas decomposition test device and application method

A technology of gas decomposition and test equipment, which is applied in the direction of measuring equipment, measuring electricity, material separation, etc., and can solve problems such as complex physical environments

Active Publication Date: 2019-12-13
STATE GRID GASU ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, SF 6 Gas-insulated equipment has a relatively complex physical environment under actual operating conditions

Method used

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  • Electricity-heat combined aging and gas decomposition test device and application method
  • Electricity-heat combined aging and gas decomposition test device and application method
  • Electricity-heat combined aging and gas decomposition test device and application method

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Embodiment 1

[0036] Such as Figure 1~4 An electric-thermal combined aging and gas decomposition test device is shown, which includes four four units, namely: voltage input unit, combined electric-heat test / gas decomposition test unit, air intake unit, gas collection and detection unit , the specific connection structure is as follows.

[0037] Such as figure 1 As shown, the four units all use the mobile frame 34 as the installation base frame, and at the same time, a cylindrical mounting frame is arranged on the upper end of the mobile frame 34, and a polyoxymethylene insulating sleeve 1, a temperature and humidity sensor 30, and a DN50 Reserved opening 31, DN200 blind flange 32 and observation window 36. POM insulating bushing 1 is the bushing for the voltage input unit, DN50 reserved opening 31 is the expansion port for other experimental detection, DN200 blind flange 32 is the movable cover structure, used for placing materials, etc., and the observation window 36, as the name implie...

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Abstract

The invention relates to the field of high-voltage insulation detection, in particular to an electricity-heat combined aging and gas decomposition test device and an application method. The device comprises a voltage input unit, an electricity-heat combined test / gas decomposition test unit, a gas inlet unit and a gas production and detection unit. A high-voltage power supply input module uses an AC voltage, and applies the AC voltage into a gas decomposition chamber. The gas inlet unit is used for charging gas into a test cavity to carry out gas discharge decomposition test. A high-voltage electrode and a ground electrode are arranged in a cavity of the electric heating combined test / gas decomposition test unit. The gas production and detection unit is controlled by a ball valve and a four-way valve to be introduced into a micro-water instrument and a gas chromatograph to collect decomposed gas. According to the device and method, a solid organic insulating material is placed in a gasenvironment, so that fault diagnosis such as gas decomposition and material electric heating combined aging under local high temperature and high field intensity can be explored, and insulation statecombined evaluation is realized for solving practical engineering problems.

Description

technical field [0001] The invention relates to the field of high-voltage insulation detection, in particular to an electric-thermal combined aging and gas decomposition test device and an application method. Background technique [0002] SF 6 It is an insulating gas widely used in transmission lines, but in actual operating conditions, the gas-insulated transmission system faces a complex environment. When the equipment has poor contact, magnetic saturation, overload, resistance loss, dielectric loss and other defects or overload faults, it will cause local overheating of the gas insulated equipment, which will cause heat under the action of current and voltage, mainly due to current effect and voltage effect , short circuit, tip discharge and other abnormal conditions, and then latent failures will occur. These latent faults will gradually turn into overheating faults, coupled with the high field strength formed by the voltage in the transmission line, the insulation sys...

Claims

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Application Information

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IPC IPC(8): G01R31/12G01N30/02
CPCG01R31/1281G01N30/02
Inventor 张广东杨军亭孙涛陈宏刚杨勇朱生鸿彭鹏王津马振祺张玉王继娟包艳艳张家午
Owner STATE GRID GASU ELECTRIC POWER RES INST
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