Manufacturing method of antiaging hybrid insulating oil transformer

Abstract

The invention discloses a manufacturing method of an antiaging hybrid insulating oil transformer. The manufacturing method is applicable to oil-immersed power transformers different in voltage level and capacity. An ordinary transformer with a transformer body and a box cover already assembled well and with no transformer oil injected is selected and adopted, and except for the transformer oil, a structural material and the like of the transformer do not need to be changed. All parameters like voltage ratio, direct-current resistance, induced voltage withstanding, alternating-current voltage withstanding, no-load current, no-load loss, loaded loss, impedance voltage and oil tank strength and sealability of a 10kV antiaging hybrid insulating oil power distribution transformer manufactured according to the method can meet requirements of GB / T6451-2008, GB1094.1-1996, GB1094.2-1996, GB1094.3-2003 and GB1094.5-2008.

Description

technical field [0001] The invention relates to a preparation method of a novel insulating oil-impregnated transformer, in particular to an oil-immersed power transformer suitable for different voltage levels and capacities. Background technique [0002] As the core of energy conversion in the process of power transmission and distribution, power transformers are the most important and critical equipment in the safe operation of equipment. Transformer oil and insulating paper together become the main components of the transformer's internal insulation. During the long-term operation, the two are gradually aging due to the influence of electricity, heat and other factors, causing the insulation and mechanical properties of the transformer to decline. The deterioration of insulating oil will increase the hygroscopicity of insulating oil, increase the water content, reduce the insulation performance, and greatly reduce the cooling, heat dissipation and arc extinguishing perform...

AI Technical Summary

Problems solved by technology

[0003] The most widely used insulating oil in oil-immersed power transformers is mineral insulating oil, but mineral oil is a primary energy source, with low flash point and ignition point, low water saturation, and poor biodegradability. Once leaked, it will damage the water source and the living environment. cause pollution

In the middle of the 20th century, there were many kinds of high ignition point and renewable new insulating oils researched at home and abroad, but they were not widely used in transformers due to their toxicity, pollution of the environment or high cost.

But so far, a distribution transformer impregnated with mixed oil has not been developed at home and abroad. Therefore, if an anti-aging mixed insulating oil transformer is developed, it will have a profound impact on the research field of new insulating oil at home and abroad and have a great impact on the power industry. huge application value

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