Overheating fault simulating method for GIS (gas insulated switchgear) bus joint

A technology for bus joints and fault simulation, which is applied in the direction of instruments, measuring devices, and measuring electronics, can solve the problems of inability to simulate overheating faults of GIS bus joints, high test costs, and long equipment manufacturing cycles, etc., so as to facilitate temperature monitoring and Patrol inspection and overcome the effect of high cost

Active Publication Date: 2012-12-19
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID +1
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Problems solved by technology

However, if the prototype GIS bus joint is used for fault simulation, not only the test cost is high, but also there are deficiencies such as lo

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  • Overheating fault simulating method for GIS (gas insulated switchgear) bus joint
  • Overheating fault simulating method for GIS (gas insulated switchgear) bus joint
  • Overheating fault simulating method for GIS (gas insulated switchgear) bus joint

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Embodiment Construction

[0012] The solutions of the present invention will be described in detail below in conjunction with the preferred embodiments thereof.

[0013] figure 1 A schematic flowchart of an embodiment of the method for simulating overheating faults of GIS bus joints of the present invention is shown in .

[0014] Such as figure 1 As shown, the GIS bus joint overheating fault simulation method in this embodiment includes steps:

[0015] Step S101: Establish a mathematical model of temperature rise according to the physical process of heating of the GIS bus joint;

[0016] Step S102: Carry out similarity analysis on each physical process of the overheating phenomenon of the GIS busbar joint according to the above-mentioned mathematical model of temperature rise, determine the similarity criterion of each physical process according to the similarity analysis results, and according to the similarity criterion, the overheating of the GIS busbar joint The multi-field coupling relationship...

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Abstract

An overheating fault simulating method for GIS (gas insulated switchgear) bus joint includes steps of building a mathematical temperature-rising model according to a physical heating process of the GIS bus joint; performing similarity analysis according to the mathematical temperature-rising model, determining an accurate coupling field similarity relation; simplifying the mathematical temperature-rising model, determining an approximate coupling field similarity relation; determining a simulation test scheme of overheating faults of the GIS bus joint and a physical GIS bus joint similarity model under various contact conditions; implementing an overheating fault simulation test on the basis of the physical similarity model of the GIS bus joint according to the simulation test scheme, and acquiring simulation test data. By simulating the overheating faults of the GIS bus joint with the similarity model of the GIS bus joint, overheating fault mechanisms and reliability features are indirectly researched, the defects that protomodel simulation test is high in cost, equipment manufacturing period is long and reliability during test is poor are overcome, and implementing of temperature monitoring and routing inspection of the GIS bus joint are facilitated.

Description

technical field [0001] The invention relates to a method for simulating faults of electrical equipment, in particular to a method for simulating overheating faults of GIS bus joints. Background technique [0002] With the massive use of GIS (GAS Insulated Switchgear, gas insulated switchgear), accidents caused by overheating of GIS bus joints due to poor contact have occurred from time to time, and have become one of the typical faults of GIS accidents. Therefore, it is of great significance to carry out GIS bus joint temperature monitoring and inspection for the safe and stable operation of the power system. By simulating the overheating fault of GIS bus joints, it is possible to investigate and analyze the overheating fault mechanism and life characteristics of GIS bus joints, and then provide an important theoretical and practical basis for the detection and inspection of GIS bus joint temperature. However, if the prototype GIS bus joint is used for fault simulation, not...

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Application Information

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IPC IPC(8): G01R31/00G01R31/02
Inventor 詹清华苏杏志谢志杨舒乃秋刘根才金向朝陈道品李洪涛吴晓文李玲李红玲关向雨
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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