Experimental method for optimizing transformer insulation drying

Abstract

The invention discloses an experimental method for optimizing insulation drying of a transformer. The invention comprising the following steps of: Firstly, setting up an experimental system; secondly,obtaining the characteristic parameters such as furfural content, insulating oil temperature, and oil moisture content in the transformer insulating oil through the experimental system; thirdly, calculating the water concentration and average degree of polymerization in the transformer insulation paper according to the balance relationship of the oil-paper insulation system in the transformer; finally, calculating the drying time of the transformer insulation at a specific temperature by the transformer drying model. The Experimental method for optimizing transformer insulation drying effectively improves the drying efficiency and effect of the transformer insulation.

Description

technical field [0001] The invention belongs to the field of transformer drying technology, and in particular relates to an experimental method for the optimization research of transformer insulation drying. Background technique [0002] The transformer is the core equipment in the power system, which plays the role of voltage conversion and energy transfer. Its insulation performance and operating status are directly related to the reliability and stability of the entire system. The insulation performance of the transformer is an important condition to ensure its reliable operation. However, the working environment of the transformer is relatively harsh. The intrusion of external moisture and the moisture generated by the aging of the insulating paper will cause the transformer to be damp, resulting in a decrease in the insulation performance of the transformer, which is of great concern to the safe operation of the power system. In order to improve the insulation performan...

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Problems solved by technology

The insulation performance of the transformer is an important condition to ensure its reliable operation. However, the working environment of the transformer is relatively harsh. The intrusion of external moisture and the moisture generated by the aging of the insulating paper will cause the transformer to be damp, resulting in a decrease in the insulation performance of the transformer, which is of great concern to the safe operation of the power system. In order to improve the insulation performance of the transformer and prolong the service life of the transformer, it is necessary to dry the transformer with high moisture content

[0003] The current drying method does not take into account the difference in the aging degree and dampness of the transformer. The drying time and temperature of different transformers are constant, resulting in waste of resources and energy, and the best drying effect cannot be achieved. Even the temperature of the steam during the gas phase drying process If the temperature is too high, the C-C and C-H bonds in the oil will be broken, which will accelerate the aging of the transformer insulation and affect the insulation performance of the transformer. It is particularly important to optimize the drying process of the transformer insulation

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