Application of Crepe Paper Tube in Oil Immersed Transformer

The thermal stability of insulated materials crepe paper tube in oil immersed transformers is the main factor affecting the life and overload capacity of oil immersed transformers. The insulation crepe paper tube in oil immersed transformers materials used for oil immersed transformers are studied from the aspects of preparation technology, physical and chemical properties, electrical properties and anti-aging ability. The application of advanced technology is conducive to the development of more high-quality and high-grade insulating wrinkled paper tube materials. The development of the whole oil immersed transformer industry has been promoted.
crepe paper tube
Oil immersed transformer has the characteristics of good heat dissipation, low loss, large capacity and low cost, which has become the most widely used power transformer in the power grid. Its reliability is directly related to the safety and stability of the power grid. The oil immersed transformer adopts solid-liquid composite insulation structure. At present, the conventional oil paper insulation system consisting of corrugated paper pipe, raw material, and mineral insulating oil is often used. The safety and reliability of the insulation system is the basic condition for the normal operation of the transformer. During the operation of the oil immersed transformer, the insulation system will gradually age due to the influence of many factors, such as temperature, oxygen, moisture, etc., among which the thermal aging is the most important one.
The thermal stability of crepe paper tube in oil immersed transformers is the main factor that affects the service life, load capacity, capacity and volume of oil immersed transformer. According to the provisions of GB / Z 1094.14-2011, the raw materials of corrugated paper pipe are heat-resistant super cellulose insulating paper, mineral insulating oil, solid or liquid insulating materials which are high-temperature insulating materials. Different insulating materials can be combined into different heat-resistant insulation systems. According to different temperature requirements, different heat-resistant insulation materials are selected, taking into account the heat resistance and economy of the insulating materials.
crepe paper
In the field of solid insulation materials, aramid paper and polyamide adhesive paper have been used in oil immersed transformers, and the application of polymer materials in oil immersed transformers has been concerned, such as polyester, polycarbonate, etc. Improving the anti-aging and heat resistance of insulated crepe paper tube in oil immersed transformers is still an important part of the development of oil immersed transformers.

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