Electrical equipment fault diagnosis method, temperature-sensitive paint and production method of paint

A heat-sensitive coating and electrical equipment technology, applied in heat-sensitive coatings, coatings, etc., can solve problems such as high local temperature, fire, equipment discharge, etc., achieve the effects of short discoloration time, long service life, and anti-aging and corrosion

Active Publication Date: 2017-08-01
湖南省湘电试验研究院有限公司 +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

If it cannot be dealt with in time, the heating time is too long, which will cause the local temperature to be too high, which will cause discharge and fusing of some parts of the equipment, and even cause insulation accidents or fires in severe cases.
Infrared temperature measurement technology is a fault diagnosis technology widely used in power systems at present. However, infrared temperature measurement technology is easily affected by many factors such as the atmosphere, test background, object radiation rate, and adjacent equipment radiation. The measurement environment is relatively demanding. relatively harsh

Method used

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  • Electrical equipment fault diagnosis method, temperature-sensitive paint and production method of paint

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The heat-sensitive coating is prepared according to the following composition ratio:

[0024] Commercially available acrylic resin: 45.0%;

[0025] Thermochromic material: 25.0%;

[0026] Talc powder: 10.0%;

[0027] Xylene: 20.0%

[0028] The heat-sensitive color-changing material adopts microcapsules of room temperature ionic liquid and crystal violet lactone, crystal violet lactone accounts for 65% of the total weight of the heat-sensitive color-changing material, and the rest is room temperature ionic liquid, which is prepared by microemulsion method.

[0029] The preparation method of this thermosensitive coating is:

[0030] a. Add the polyurethane resin of the above weight part and 2 / 3 of the xylene of the above weight part into the batching tank, heat to 50° C. and stir for 30 minutes, and the rotation speed is 400 r / min;

[0031] b. Add the above-mentioned heat-sensitive color-changing material in the state of stirring to the material mixed in step a, stir ...

Embodiment 2

[0035] The heat-sensitive coating is prepared according to the following composition ratio:

[0036] Commercially available silicone resin: 35.0%;

[0037] Heat-sensitive discoloration material: 30.0%;

[0038] Kaolin: 25.0%;

[0039] Toluene: 10.0%

[0040] The heat-sensitive color-changing material adopts microcapsules of room temperature ionic liquid and crystal violet lactone, crystal violet lactone accounts for 30% of the total weight of the heat-sensitive color-changing material, and the rest is room temperature ionic liquid, which is prepared by microemulsion method.

[0041] The preparation method of this thermosensitive coating is:

[0042] a. Add the silicone resin of the above weight portion and 2 / 3 of the toluene of the above weight portion into the batching tank, heat to 65°C and stir for 40min, and the rotating speed is 500r / min;

[0043] b. Add the above-mentioned heat-sensitive color-changing material by weight to the material mixed in step a while stirring...

Embodiment approach

[0048]

[0049] The heat-sensitive color-changing material crystal violet lactone in Embodiment 3 accounts for 10% of the total weight of the heat-sensitive color-changing material, and the rest is room temperature ionic liquid.

[0050] For the third embodiment, the following operations will be performed:

[0051] a. Add the silicone resin of the above weight part and 2 / 3 of the toluene of the above weight part into the batching tank, heat to 75 ° C and stir for 20 minutes, and the speed is 600 rpm;

[0052] b. Add the above-mentioned heat-sensitive color-changing material by weight to the material mixed in step a while stirring, and stir for 30 minutes at a speed of 400 rpm to disperse and wet to obtain a pre-pulp;

[0053] c. Cool the pre-pulp in step b to 40°C, and grind it to a fineness of 10 microns with a ball mill to obtain a feed liquid;

[0054] d. Cool the material liquid in step c to 25°C, add the remaining toluene under stirring, continue stirring and mixing, ...

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Abstract

The invention discloses an electrical equipment fault diagnosis method, a used paint and a production method of the paint. The electrical equipment fault diagnosis method is characterized by coating electrical equipment with the temperature-sensitive paint, wherein the electrical equipment emits heat to enable the color of the temperature-sensitive paint to change when the electrical equipment is faulted; and utilizing the color change of the temperature-sensitive paint for diagnosing a fault position of the electrical equipment. The paint is the temperature-sensitive paint, which is prepared from a binder, a temperature-sensitive off-color material, a filler and a diluent, wherein the temperature-sensitive color-changing material is a microcapsule containing room temperature ionic liquid and crystal violet lactone. According to the method provided by the invention, a specific position of an electrical equipment fault can be quickly and intuitively judged, and operation and maintenance personnel is helped to quickly troubleshoot. A warning function can also be played when the fault occurs at the beginning, so that the occurrence of major break down is prevented.

Description

technical field [0001] The invention relates to a method for diagnosing faults of electrical equipment, used paint and a production method of the paint. Background technique [0002] The heating failure of electrical equipment is one of the common failures in the power industry. If it cannot be dealt with in time, the heating time is too long, which will cause the local temperature to be too high, which will cause discharge and fusing of some parts of the equipment, and in severe cases, it will cause insulation accidents or fires. Infrared temperature measurement technology is a fault diagnosis technology widely used in power systems at present. However, infrared temperature measurement technology is easily affected by many factors such as the atmosphere, test background, object radiation rate, and adjacent equipment radiation. The measurement environment is relatively demanding. relatively harsh. Due to the precision of the temperature measuring equipment, there are also ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D183/04C09D5/26C09D7/12C09D7/14C09D7/80
CPCC08K5/18C09D5/26C09D7/63C09D7/80C09D133/00C09D183/04
Inventor 周舟周卫华周年光周挺冯兵陈绍艺何德良
Owner 湖南省湘电试验研究院有限公司
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