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A sample making method and a sheet sample for studying the aging process of the inter-turn insulation of a dry-type air-core reactor

An air-core reactor and turn-to-turn insulation technology, which is applied in the field of sheet material samples and production, can solve problems such as the inability to effectively simulate the dry-type air-core reactor turn-to-turn insulation structure, composite insulation materials and composite insulation material interface distribution research, etc. , achieve good space charge and infrared spectrum measurement, avoid air mixing, and facilitate thermal aging

Inactive Publication Date: 2018-02-13
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The research on thermal aging, electrical aging, moisture, mechanical vibration and other tests on the inter-turn insulation of dry-type air-core reactors is mainly carried out for epoxy resin and various film materials alone, and there is no research on the interface distribution of composite insulating materials and composite insulating materials. Conducting research, the inter-turn insulation structure of dry-type air-core reactors cannot be effectively simulated

Method used

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  • A sample making method and a sheet sample for studying the aging process of the inter-turn insulation of a dry-type air-core reactor
  • A sample making method and a sheet sample for studying the aging process of the inter-turn insulation of a dry-type air-core reactor
  • A sample making method and a sheet sample for studying the aging process of the inter-turn insulation of a dry-type air-core reactor

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Embodiment Construction

[0033] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Furthermore, it should be understood that development work, while potentially complex and time-consuming, would be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0034] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution ac...

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Abstract

The invention discloses a manufacturing method for a sample for researching an inter-turn insulation aging process of a dry-type air-core reactor and a flake sample, and relates to a flake material sample and the manufacturing method. The method comprises the following steps: manufacturing flake polyester films; wiping the surfaces of the flake polyester films with alcohol, and performing drying treatment; forming a square opening and an outflow opening, and adhering two flake polyester films tightly without air bubbles; adding epoxy resin into the square opening dropwise; adhering the flake polyester films to the upper surface of the square opening; performing pressurizing and heating treatment on a composite insulating material sample; manufacturing a round sample. According to the sample, three square flake polyester films are adhered tightly; the square opening is formed in the central position of the second square flake polyester film, and the overflow opening is formed in the side of the second square flake polyester film, and an epoxy resin filling structure body is arranged in the square opening. The sample is applicable to various aging tests of thermal aging, electric aging, moisturizing, and mechanical vibration; space charge test and infrared spectral measurement can be performed on the sample.

Description

technical field [0001] The invention relates to a sheet material sample and a manufacturing method thereof, in particular to a sample manufacturing method and a sheet sample used for studying the aging process of inter-turn insulation of a dry-type air-core reactor. Background technique [0002] In order to ensure the quality of power and the safety and reliability of power system transmission, the demand for reactive power compensation devices in the power grid continues to increase, and a large number of dry-type air-core shunt reactors are widely used. However, judging from the operating conditions in recent years, abnormalities and failures of dry-type air-core reactors that have been put into operation often occur. It can be seen from the fault statistics that the number of faults caused by insulation breakdown between coil turns accounts for more than 65% of the total faults. Before the reactor is put into operation or after a period of operation, defect points will a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 聂洪岩姚远航顾哲屹
Owner HARBIN UNIV OF SCI & TECH
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