Capacitor oil applied to oil-immersed capacitor and preparation method of capacitor oil

Abstract

The invention discloses capacitor oil applied to an oil-immersed capacitor and a preparation method of the capacitor oil. The capacitor oil contains the following components by weight percent: 20%-40% of epoxidized soybean oil, 20%-40% of castor oil, 3%-10% of an antioxidant, 10%-30% of polyol ester and 10%-20% of epoxy resin. The capacitor oil is high in cost performance, can be used at high and low temperatures and is convenient to use. The preparation method comprises the following process steps: (a) weighing the components of the capacitor oil, wherein the capacitor oil contains the following five materials: the epoxidized soybean oil, the castor oil, the antioxidant, and the epoxy resin; (b) adding the epoxidized soybean oil, the castor oil and the polyol ester into a stirring tank, and carrying out primary stirring; (c) after the primary stirring is finished, adding the epoxy resin into the stirring tank, and carrying out secondary stirring; (d) after the secondary stirring is finished, adding the antioxidant into the stirring tank, and carrying out third secondary stirring; and (e) detecting. The preparation method can be used for effectively producing and preparing the capacitor oil applied to the oil-immersed capacitor.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to capacitor oil applied to oil-immersed capacitors and a preparation method thereof. Background technique [0002] For oil-immersed capacitors in existing oil, the following materials are mainly used, specifically: [0003] 1. Synthetic material: represented by polyisobutylene, the advantage is strong inertness, no dissolution reaction with the wire rod, the disadvantage is that it is too viscous, difficult to fill, and the price is high; [0004] 2. Epoxy resin: the advantage is low cost, but it is difficult to fill, easy to condense in cold weather, and inconvenient to use; [0005] 3. Castor oil: the advantage is that it is convenient to use, but the cost is high and it is easy to oxidize. Contents of the invention [0006] The purpose of the present invention is to provide a capacitor oil applied to oil-immersed capacitors in view of the shortcomings of the prior ar...

AI Technical Summary

Problems solved by technology

[0004] 2. Epoxy resin: the advantage is low cost, but it is difficult to fill, easy to condense in cold weather, and inconvenient to use;

[0005] 3. Castor oil: the advantage is that it is convenient to use, but the cost is high and it is easy to oxidize