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High-performance epoxy insulating part local overheating defect simulation system and method

An epoxy insulation, local overheating technology, applied in the direction of testing dielectric strength, etc., can solve the problems of interfering electromagnetic field, uncontrollable temperature, impractical simulation, etc., to achieve simple construction, convenient operation, good adjustability and response speed Effect

Pending Publication Date: 2022-01-28
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The main problems in the existing technology are: the heating method belongs to the overall heating, which is not suitable for the simulation of local overheating defects, and the temperature is uncontrollable, which is easy to introduce foreign objects and interfere with the electromagnetic field around the experiment
It is difficult to solve this problem in terms of economic and operational difficulties

Method used

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  • High-performance epoxy insulating part local overheating defect simulation system and method
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  • High-performance epoxy insulating part local overheating defect simulation system and method

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] Aiming at the problems existing in the prior art, the present invention provides a high-performance epoxy insulator local overheating defect simulation system and method. The present invention will be described in detail below with reference to the accompanying drawings.

[0047] A high-performance epoxy insulator local overheating defect simulation system and method provided by the present invention can also be implemented by other steps, figure 1 The system and method for simulating local overheating defects of high-performance epoxy insulators provided by the present invention are only a specific embodiment. Thi...

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Abstract

The invention belongs to the technical field of high-voltage tests and discloses a high-performance epoxy insulator local overheating defect simulation system and method. The system comprises a heating module and a temperature control module, wherein the temperature heating module is arranged in a reserved opening in the middle of an insulating support, a grounding copper sheet is arranged at an upper end of the heating module, and an epoxy insulating part to be tested is arranged at an upper end of the grounding copper sheet; the temperature control module comprises an adjustable direct-current voltage source, a temperature sensor and a temperature digital display meter, the adjustable direct-current voltage source and the temperature sensor are respectively connected with the heating module, and the temperature digital display meter is connected with the temperature sensor. The system is advantaged in that the temperature control device is installed on a lower surface of the grounding copper sheet, the electric field borne by the sample is not affected, meanwhile, the temperature control device is isolated from the high-voltage part, and therefore the temperature control device can work safely and normally, the power is adjusted manually, the temperature of the point is controlled, and the temperature of other parts of the tested sample is not affected; and simulation of the local overheating defect of the epoxy insulating part is completed.

Description

technical field [0001] The invention belongs to the technical field of high-voltage testing, and in particular relates to a high-performance epoxy insulating part local overheating defect simulation system and method. Background technique [0002] At present, epoxy resin is a thermosetting resin with excellent performance, and its cured product has good heat resistance, chemical resistance, mechanical properties and electrical properties. With its excellent dielectric properties and other characteristics, it is widely used in the main insulation of capacitor cores of high-voltage DC dry-type bushings, dry-type transformers, pot insulators, composite pole towers and other power equipment insulation. However, in actual use, due to working at high current and high voltage for a long time and being affected by environmental factors, electrical equipment made of epoxy insulation will have some defects. [0003] High-performance epoxy materials are widely used in insulation equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/12
Inventor 周福升黄若栋高超熊佳明王国利乔亚军喻婷罗同春胡涛李信王海靖
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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