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High performance capacitor impregnating agent

A capacitor and impregnating agent technology, which is applied in the direction of capacitors, fixed capacitors, fixed capacitor dielectrics, etc., can solve the problems of general fluidity and heat resistance of the impregnating agent, affect the life of the capacitor, and the performance of the impregnating agent is not high, so as to improve the dielectric strength and volume resistivity, significant economic benefits, and the effect of improving heat resistance

Inactive Publication Date: 2017-04-19
ANHUI FEIDA ELECTRICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The impregnating agent of the capacitor acts as a liquid insulating medium to fill the gap between the solid medium and improve the dielectric strength. The aging performance is closely related to the gas washing performance under the electric field. At present, the performance of the impregnating agent for capacitors is not high, and it is easy to corrode the capacitor plate, which further affects the life of the capacitor under high electric field. The fluidity and heat resistance of the impregnating agent are average, which cannot meet the requirements Many occasion-specific needs

Method used

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  • High performance capacitor impregnating agent

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Effect test

Embodiment 1

[0017] A high-performance capacitor impregnant, which is made from the following ingredients in parts by weight: castor oil 80, olive oil 30, sodium benzene sulfonate 1, auxiliary material 3, diffusing agent MF0.8, pumpkin seed oil 3, suberic acid 8 , Cottonseed oil 3; The auxiliary material is made of the following ingredients in parts by weight: bentonite 6, bauxite 10, diatomite 2.

Embodiment 2

[0019] A high-performance capacitor impregnant, which is made from the following ingredients in parts by weight: castor oil 100, olive oil 40, sodium benzenesulfonate 4, auxiliary material 6, diffusing agent MF1, pumpkin seed oil 6, suberic acid 13, cotton seed Oil 6; The auxiliary materials are made of the following ingredients in parts by weight: bentonite 10, bauxite 15, and diatomite 6.

Embodiment 3

[0021] A high-performance capacitor impregnating agent, which is made from the following ingredients in parts by weight: castor oil 90, olive oil 35, sodium benzenesulfonate 2, auxiliary material 4, diffusing agent MF0.9, pumpkin seed oil 4, suberic acid 10 , Cottonseed oil 5; The auxiliary material is made of the following ingredients in parts by weight: bentonite 8, bauxite 12, and diatomite 3.

[0022] The preparation method of the auxiliary material in the above embodiment is:

[0023] ① The bentonite is calcined at 325°C for 20 minutes, and when it is cooled to 40°C, it is added to a 5% sodium hypochlorite solution and soaked for 20 minutes, then filtered, washed, and dried;

[0024] ② The bauxite is calcined at 275°C for 15 minutes, and when it is cooled to 45°C, it is added to a sodium hypochlorite solution with a mass fraction of 8% and soaked for 15 minutes, then filtered, washed, and dried;

[0025] ③ Calcined diatomaceous earth at 225°C for 10 minutes, and when cooled to 40...

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Abstract

A high performance capacitor impregnating agent is disclosed and is prepared by the following ingredients: castor oil, olive oil, benzene sodium sulfonate, an accessory, a diffusion agent MF, pumpkin seed oil, octanedioic acid and cottonseed oil; the accessory is prepared by the following ingredients: bentonite, bauxitic clay and diatomite. According to the high performance capacitor impregnating agent, the pumpkin seed oil, the octanedioic acid and the cottonseed oil cooperate with each other; partial discharge performance of a capacitor and self-healing conditions of a medium can be greatly improved; incidences of electrode plate corrosion and capacitance reduction can be reduced via addition of the accessory prepared in the invention, dielectric strength and volume resistivity of the impregnating agent can be improved to a certain degree, usage performance of the capacitor can be further improved, and requirements for high energy density and low equivalent series resistance of the capacitor can be met; compared with a conventional capacitor filled with a castor oil impregnating agent, the capacitor filled with the impregnating agent disclosed in the invention is advantageous in that service life is prolonged by 12%, and notable economic benefits can be obtained.

Description

Technical field [0001] The invention relates to the field of capacitor impregnating agents, in particular to a high-performance capacitor impregnating agent. Background technique [0002] As a liquid insulating medium, the impregnant of the capacitor plays the role of filling the gap between the solid medium and improving the insulation strength. The performance of the structure under high electric field determines the length of the life of the capacitor, the partial discharge performance and the heat resistance and electrical resistance of the liquid medium. The aging performance and the gas scrubbing performance under the electric field are closely related. At present, the performance of the capacitor impregnant is not high, and it is easy to corrode the capacitor plate, which further affects the life of the capacitor under high electric field. The fluidity and heat resistance of the impregnant are general, which cannot be satisfied. The needs of many specific occasions. Summa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/22
CPCH01G4/221
Inventor 胡忠胜华玲萍吴良军
Owner ANHUI FEIDA ELECTRICAL TECH CO LTD
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