Capacitor impregnation liquid containing modified flaxseed oil

Abstract

The invention discloses capacitor impregnation liquid containing modified flaxseed oil. The capacitor impregnation liquid is prepared from castor oil, modified sunflower seed oil, urea, ingredients, dispersant MF, peanut oil, octanedioic acid and rice bran oil; the ingredients are prepared from attapulgite, zeolite powder and diatomite. The prepared capacitor impregnant is environmentally friendlyand free of pollution, good in using effect, high in high-temperature resistance, high in heat dissipation performance, safe, reliable and durable, through the synergetic effect of the modified sunflower seed oil, urea, octanedioic acid and the rice bran oil, the local discharge initial voltage of a medium system can be increased, and the self-healing performance of a capacitor medium is greatlyimproved. By adding the prepared ingredients, the occurrence of corrosion of a counter electrode and lowering of capacitance can be reduced, the dielectric strength and volume resistivity of the impregnant can also be increased to a certain degree, and thus the using performance of a capacitor can be further improved.

Description

technical field [0001] The invention relates to the field of capacitor impregnating agents, in particular to a capacitor impregnating liquid containing modified linseed oil. Background technique [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. Most of the energy released during the self-healing breakdown of the capacitor is consumed in the destruction and decomposition of the medium, while less than 15% is consumed in the evaporation of the coating. The medium should not be damaged due to self-healing, the energy released during self-healing should be less, the time for insulation recovery should be short, and the gas and carbon produced should be less. However, the existing capacitor impregnants often cause poor self-healing of capacitors and lead to continuous firin...

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. Most of the energy released during the self-healing breakdown of the capacitor is consumed in the destruction and decomposition of the medium, while less than 15% is consumed in the evaporation of the coating. The medium should not be damaged due to self-healing, the energy released during self-healing should be less, the time for insulation recovery should be short, and the gas and carbon produced should be less. However, the existing capacitor impregnants often cause poor self-healing of capacitors and lead to continuous firing. wear, the performance of the capacitor is not guaranteed

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