2014年1月14日星期二

Resin dry type transformer life cycle

Life Cycle: full performance from the beginning to the body to give a complete loss of the performance of the entire process . An insulating material , an insulating structure or even to a electrical products , is not a simple body , is required to have multiple components , such as electrical, mechanical and physicochemical properties. In its lifetime , an essential element of any failures have led to the end of its life . So, end of life is sometimes manifested as natural aging type , sometimes manifested as sudden unexpected . Many factors affect the life . Naturally, the internal and external factors, external factors act by internal factors . From the composition of the structure, the life of the resin  air circuit breaker  transformers consists of life , the life of insulation , structural fasteners life electromagnetic structure of three parts. Practice has proved that the elements that play a decisive role in the life of the insulation structure. For resin insulation dry-type power transformers,  circuit breakers  except SiO2 inorganic materials , all the rest of the organic polymer materials and organic materials accounted for 40 % -60 % volume fraction of insulation . Shielding material is oxygen and water as well as in organic matter decomposition temperature of the work environment , their life is almost timeless. Therefore, the resin insulation dry-type power transformer coil insulation life depends on the structure of the resin parts. Many factors affect the life of the insulation structure . Are: the electric field distribution and strength ; role of electric power and strength ; operating temperature and the stress state ; composition structure and composition of the insulating properties of the merits of the material ; operating environment of the product. Therefore , to achieve the life of the transformer, advocates from the " embryo " to start . Transformer life given by the manufacturer , parenting by the user.

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