Capacitor impregnant containing modified argil and preparation method thereof

Abstract

The invention discloses a capacitor impregnant containing modified argil and a preparation method thereof. The capacitor impregnant comprises the following raw materials by weight: 103-108 parts of salad oil, 4-6 parts of modified argil, 2-4 parts of modified tree ash, 0.8 part to 1.2 parts of siliceous shale, 0.7-0.9 part of attapulgite and 0.1-0.3 part of stearic acid monoglyceride. The capacitor impregnant adopts the salad oil as a main material and is low in cost. Simultaneously, the modified argil, the modified tree ash, the siliceous shale the attapulgite and the stearic acid monoglyceride are added. Adsorption performance of moisture in the impregant is improved by modifying the argil and the tree ash. The capacitor impregant has good flowability and heat resistance, is free of corrosion and impurity, and is capable of effectively improving electric performance of a capacitor and prolonging service life of the capacitor.

Description

technical field [0001] The invention relates to a capacitor impregnating agent, in particular to a capacitor impregnating agent containing modified clay and a preparation method thereof. Background technique [0002] At present, the impregnating agents used in capacitors are generally vegetable oils such as castor oil and salad oil, or mineral oils such as methyl silicone oil, phenylmethyl silicone oil, and PO oil. The biggest disadvantage of using oils as impregnants for capacitors is that the oil always contains Some moisture, and during the use of the capacitor, the moisture will gradually invade the capacitor core, causing the thin film metal plate of the capacitor to fall off, so that the capacity decays quickly and fails, reducing the life performance of the capacitor. If these oils are dehydrated in advance , requires more complex equipment, costs more, and cannot prevent these oils from getting wet again. Contents of the invention [0003] The purpose of the prese...

AI Technical Summary

Problems solved by technology

[0002]At present, the impregnating agents used in capacitors are generally vegetable oils such as castor oil and salad oil, or mineral oils such as methyl silicone oil, benzyl silicone oil, and PO oil. The biggest disadvantage of the impregnating agent for capacitors is that the oil always contains some water, and during the use of the capacitor, the water will gradually invade the capacitor core, causing the thin film metal plate of the capacitor to fall off, so that the capacity decays quickly and fails, reducing If these oils are dehydrated in advance, more complicated equipment is required, and the cost is large, and it is impossible to prevent these oils from being damp again