Decomposition simulation experiment method for sulfur hexafluoride gas insulating medium electro-thermo combination

A technology of sulfur hexafluoride gas and insulating medium, which is applied in the direction of testing dielectric strength, measuring electricity, analyzing materials, etc., to achieve the effect of improving accuracy
CN104375071AInactive Publication Date: 2015-02-25WUHAN UNIV +1
7 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2015-02-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a decomposition simulation experiment method for sulfur hexafluoride gas insulating medium electro-thermo combination. A decomposition experiment system for sulfur hexafluoride under the application number 201310551600.2 is used, and the method includes the steps of examining seal performance of the experiment system, cleaning a cylinder and performing SF6 gas filling. The method further includes the following steps that the maximum externally exerted experiment voltage Umax is measured, a parallel-plate electrode and a heating body are installed, initial discharging voltage Ust is measured, the initial decomposition temperature T0 of SF6 is measured when experiment voltage U=0.5 Ust, and an decomposition experiment is performed on SF6 at different temperatures when the experiment voltage U=0.5 Ust. The method has the advantages that the failure state of electro-thermo combination in SF6 gas insulation electrical equipment can be simulated, the defects that an existing experiment method and an existing evaluation method evaluate the state of the SF6 insulation electrical equipment through detecting components of SF6 decomposed gas, and take a discharging failure or an overheating failure in the SF6 gas insulation electrical equipment into consideration instead of both the discharging failure and the overheating failure are overcome, and the accuracy of judging the failures of the SF6 gas insulation electrical equipment is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a gas insulating medium, in particular to a sulfur hexafluoride (SF 6 ) Simulation experiment method of decomposition of gas insulating medium. Background technique

[0002] SF 6 Gas-insulated equipment (such as gas-insulated switch GIS and gas-insulated transformer GIT, etc.) has been widely used in the construction and transformation of modern power grids due to its stable operation, compact structure and small maintenance workload, and has gradually become a One of the main equipment of modern power grid. Although SF 6 The operation reliability of gas insulated equipment is higher than that of other ordinary electrical equipment, but the operation experience shows that the internal conductive joints often have poor contact due to manufacturing and installation process problems, resulting in increased contact resistance and contact points in normal work. Under the action of current, it will lead to abnormal heating and in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More