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Abnormal temperature rise fault monitoring experimental device for true GIS

A fault monitoring and experimental device technology, which is applied to measurement devices, electrical devices, radiation pyrometry, etc., can solve problems such as the inability to effectively study the gas absorption of infrared GIS equipment temperature field distribution, etc., and achieves simple structure and low cost. Effect

Pending Publication Date: 2019-04-16
JILIN PROVINCE ELECTRIC POWER RES INST OF JILIN ELECTRIC POWER CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a true GIS abnormal temperature rise fault monitoring experimental device to solve the problem that SF cannot be effectively studied in the prior art. 6 Technical Problems of Gas Absorption of Infrared and Temperature Field Distribution of GIS Equipment

Method used

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  • Abnormal temperature rise fault monitoring experimental device for true GIS
  • Abnormal temperature rise fault monitoring experimental device for true GIS
  • Abnormal temperature rise fault monitoring experimental device for true GIS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The input end of the described high current generator 10 is connected with the mains of 220V / 50Hz through the wire, and its output current is 3000A, and the positive pole of the output end of the high current generator 10 is connected with the moving contact of the GIS isolation switch through the copper strip 9. 3 is connected, and the negative pole of the output end of the large current generator 10 is connected with the static contact 6 of the GIS isolating switch through the copper strip 9, which is the contact between the moving contact 3 of the GIS isolating switch and the static contact 6 of the GIS isolating switch. The location supplies high current, simulating a localized overheating fault.

[0051] The moving contact 3 of the GIS isolation switch is made of silver-plated copper, which is fixed on the GIS housing 2 by epoxy resin glue, and the thickness of the silver-plated layer is set to 0.5mm.

[0052] The material of the static contact 6 of the GIS isolati...

Embodiment 2

[0057] The input end of the described high current generator 10 is connected with the mains of 220V / 50Hz through the wire, and its output current is 3500A, and the positive pole of the output end of the high current generator 10 is connected with the moving contact of the GIS isolation switch through the copper strip 9. 3 Connection, the negative pole of the output end of the large current generator 10 is connected to the static contact 6 of the GIS isolation switch through the copper strip 9 .

[0058] The moving contact 3 of the GIS isolation switch is made of silver-plated copper, which is fixed on the GIS housing 2 by epoxy resin glue, and the thickness of the silver-plated layer is set to 0.3 mm.

[0059] The material of the GIS shell 2 is aluminum alloy, which is grounded through the copper strip 9, and is located just above the GIS shell 2 at a distance of 120 mm from the left sealing cover plate. The GIS ventilation valve 1 is set, and the GIS ventilation Valve 1 conne...

Embodiment 3

[0060] Embodiment 3: The input end of the described high current generator 10 is connected with the mains of 220V / 50Hz through the wire, and its output current is 1500A, and the positive pole of the output end of the high current generator 10 is isolated from the described GIS by the copper strip 9 The switch moving contact 3 is connected, and the negative electrode of the output end of the large current generator 10 is connected to the static contact 6 of the GIS isolation switch through the copper tape 9 .

[0061] The moving contact 3 of the GIS isolation switch is made of silver-plated copper, which is fixed on the GIS housing 2 by epoxy resin glue, and the thickness of the silver-plated layer is set to 0.1 mm.

[0062] The material of the GIS shell 2 is aluminum alloy, which is grounded through the copper strip 9, and is located just above the GIS shell 2 at a distance of 120 mm from the left sealing cover plate. The GIS ventilation valve 1 is set, and the GIS ventilation ...

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Abstract

The invention, which belongs to the technical field of GIS overheat fault monitoring experimental devices, provides an abnormal temperature rise fault monitoring experimental device for a true GIS. The experimental device comprises a GIS gas exchange valve, a GIS shell, a GIS isolation switch moving contact, a moving contact shield cover, an infrared temperature measuring instrument, a GIS Isolation switch static contact, a static contact shield cover, a K type thermocouple, a copper strip, a high-current generator and an SF6 gas cylinder. According to the invention, the abnormal heat-generating fault of the true GIS can be simulated in the laboratory and thus a corresponding relationship between the temperature of different GIS hotspots and the temperature of an equipment shell is explored. Besides, the device can be used for studying the temperature field distribution inside the GIS equipment under the overheat fault condition as well as the infrared absorption situation of the SF6 gas by the experiment, so that an infrared internal temperature measuring correction method is obtained.

Description

technical field [0001] The invention belongs to the technical field of an experimental device for monitoring overheating faults of GIS gas-insulated metal-enclosed switchgear, and in particular relates to a real-type GIS abnormal temperature rise fault monitoring experimental device. Background technique [0002] The GIS equipment in the power system will have defects such as poor internal contact of the equipment due to processing technology and other problems, and abnormal temperature rise faults will occur under the operation of high current. Such faults are often found in the disconnecting switch position of GIS equipment. The current fault detection method is to use an infrared thermal imager to detect the temperature of the equipment shell, but the shell temperature cannot directly quantitatively reflect the temperature of the internal hot spot. [0003] The existing invention patent CN201310241408 - "a GIS equipment contact temperature monitoring test device" can sim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01N21/3504G01K7/02G01J5/00
CPCG01J5/0003G01K7/02G01N21/3504G01R31/327
Inventor 赵天成佘新杨代勇林海丹杜秋实于群英刘赫张益云赵春明
Owner JILIN PROVINCE ELECTRIC POWER RES INST OF JILIN ELECTRIC POWER CO LTD
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