An outdoor electrical insulation epoxy resin castable for transformer

An epoxy resin, electrical insulation technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of unobtainable raw materials, high price, complex synthesis process, etc., achieve long pot life, improve resistance to cold and heat exchange The ability to change, the effect of excellent physical and chemical properties
CN103709608BActive Publication Date: 2016-03-02JIANGXI TENGDE IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI TENGDE IND
Publication Date
2016-03-02
Patent Text Reader

Abstract

The invention relates to an electric-insulation epoxy resin castable for an outdoor mutual inductor. The epoxy resin castable comprises the following materials by weight percent: 21-26% of resin, 45-55% of filling, 15-25% of a curing agent and 2-6% of other auxiliary agents, wherein the resin is formed by mixing organic silicon modified epoxy resin, phenolic aldehyde epoxy resin, brominated epoxy resin and bisphenol F-type epoxy resin; the filling is silane-processed silica powder; the curing agent is modified methylhexahydrophthalic anhydride; the other auxiliary agents include a curing catalyst, a plasticizer, a reactive diluent, a silane coupling agent, a coloring agent and an antioxidant. The electric-insulation epoxy resin castable has excellent physical and chemical properties and has the performance of heat resistance, low temperature resistance, ultraviolet irradiation resistance, ageing resistance and the like. The electric-insulation epoxy resin castable is applicable to the electric insulation of the outdoor mutual inductor and other electrical equipment.
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Description

technical field

[0001] The invention relates to a method for preparing an electrical insulating epoxy resin castable for outdoor transformers, belonging to the technical field of electrical insulating materials. Background technique

[0002] With the development of my country's electric power industry, there is a higher demand for outdoor transformers. Outdoor transformers must withstand changes in outdoor weather and strong ultraviolet radiation, which puts forward higher requirements for transformer insulation materials. At present, most of the electrical insulating castables used outdoors use imported alicyclic epoxy resin series. Because of their high price, unavailable raw materials, and complicated synthesis process, they form a bottleneck in the manufacture of outdoor transformers. Contents of the invention

[0003] The object of the present invention is, aiming at the current demand for insulating materials of outdoor transformers, the present invention proposes a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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