AC wet capacitor impregnating agent

Abstract

The invention discloses an impregnating agent for an AC wet capacitor, which comprises castor oil, salad oil and other vegetable oils or methyl silicone oil, benzyl silicone oil, PO oil and other mineral oils and hydrated magnesium silicate superfine powder. The content of the hydrated magnesium silicate superfine powder is preferably 3-8% (by weight). The hydrated magnesium silicate superfine powder is mixed with vegetable oil or mineral oil to form a suspension after stirring. The invention absorbs the moisture in the impregnating agent by adding hydrated magnesium silicate superfine powder in the impregnating agent. In this way, the moisture contained in the impregnating agent is absorbed, which cannot affect the service life of the capacitor, and can effectively improve the service life of the capacitor.

Description

technical field [0001] The invention relates to an AC wet capacitor impregnating agent, in particular to an AC wet capacitor impregnating agent containing castor oil, salad oil and other vegetable oils or methyl silicone oil, benzyl silicone oil, PO oil and other mineral oils. Background technique [0002] At present, the impregnating agents used in AC wet 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 using oil as 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 and metal plates of the capacitor to fall off, so the capacity decays quickly. failure, reducing the life performance of the capacitor. If these oils are dehydrated in advance, more complicated equipment is required, and the cost is relatively...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of using oil as 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 and metal plates of the capacitor to fall off, so the capacity decays quickly. failure, reducing the life performance of the capacitor

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