Adjustable resistance type simulation device for high voltage combined electrical apparatus contact overheating defect

A technology combining electrical appliances and analog devices, which is applied in the direction of measuring devices, instruments, measuring electronics, etc., can solve the problems of inconvenient detection, achieve the effect of wide research range, large selectivity, and difficult detection

Pending Publication Date: 2018-12-21
STATE GRID LIAONING ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, since GIS is a fully enclosed high-voltage live equipment, the hot spot is located inside the equipment, which is inconvenient to detect

Method used

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  • Adjustable resistance type simulation device for high voltage combined electrical apparatus contact overheating defect
  • Adjustable resistance type simulation device for high voltage combined electrical apparatus contact overheating defect
  • Adjustable resistance type simulation device for high voltage combined electrical apparatus contact overheating defect

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Embodiment Construction

[0031] The present invention is an adjustable resistance simulation device for the overheating defect of the contact of high-voltage combined electrical appliances, such as Figure 1-Figure 7 As shown, the device is in the form of a squirrel cage, and the screws forming the squirrel cage can be freely disassembled and assembled, and the flexibility is very good.

[0032] Including bus conductor 1, flange 2, screw rod 3, nut 4, shorting piece 5, gasket 6 and screw hole 7.

[0033] The connection relation of device of the present invention is as follows:

[0034] The busbar conductor 1 and the flange 2 are pre-welded. According to the designed size, the distance between the two flanges 2 with multiple holes is 150 mm. In practice, the adjustment error of this distance is 10 mm. Then thread the screw 3 through the screw hole 7 on the left flange, and screw the nut 4, the short link 5 and the washer 6 into the screw for a certain distance before penetrating into the screw hole on...

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Abstract

The invention belongs to the technical field of electric power system electrical apparatus fault diagnosis, and particularly relates to an adjustable resistance type simulation device for a high voltage combined electrical apparatus contact overheating defect to effective detect the overheating fault caused by poor contact of internal conductor contacts of high voltage combined electrical apparatus--tank type circuit breaker internal conductors. The adjustable resistance type simulation device comprises bus conductors, flanges, a screw, nuts, short contact pieces, and spacers. The bus conductors are connected with the two flanges. Distance between the two flanges is 150mm+ / -10mm. The screws penetrate from a threaded hole of one flange on one side. Before the screw penetrates through a threaded hole of the right flange, the nut, the short contact pieces and the spacers are screwed into the screw and are penetrated through the threaded holes. The screw is fixed by the nuts and the spacers finally. Free combination can be achieved as needed. Contact resistance values resulting from different contact errors of multiple contacts can be simulated, the problem that GIS internal conductoroverheating failure is difficult to detect is effectively solved, safe and stable operation of equipment is ensured, and high practical value and promotion value are achieved.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis of electrical equipment in power systems, and in particular relates to an adjustable resistance simulation device for contact overheating defects of high-voltage combined electrical appliances, which can effectively detect the contact of high-voltage combined electrical appliances - internal conductor contacts of tank circuit breakers Badly generated overheating fault. Background technique [0002] At first, metal-enclosed combined electrical appliances became the preferred equipment for substation construction due to its advantages of low failure rate, small maintenance amount, and long maintenance cycle. In new substations, almost all new substations use GIS (HGIS). But in fact, the internal electrode forms of combined electrical appliances are various, so that the form of electric field is also diversified, and the optimization of electric field becomes the key to the design of combined...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01J5/00
CPCG01J5/0096G01R31/00
Inventor 李爽鲁旭臣毕海涛罗斌郎福成韩洪刚刘罡李斌吴细毛宋云东赵丹迟丹一黄珂苑经纬
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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