Transformer

Abstract

The invention relates to a transformer, belonging to the field of transformers. The transformer includes a a transformer case, a turbine natural ventilator which is arranged above the transformer caseand can fully utilize the heat dissipation efficiency improved by natural air flow and chimney effect, a cylindrical ventilation duct connecting the turbine natural ventilator and the inside of the transformer case. The transformer also provides a winding and an iron core arranged in the transformer case. A ventilation window capable of ventilating and preventing rain and dust is arranged in eachof four planes perpendicular to the ground of the transformer case according to the internal structure of the transformer and the characteristics of air flow. The turbine natural ventilator of the present invention can accelerate air flow in any parallel direction and convert the same into bottom-to-top vertical air flow; with the side ventilation window the chimney effect is adopted to improve the exhaust speed of hot air in the transformation case from the upper turbine natural ventilator, and the cold air from the outside is entrapped from the side ventilation window, which makes the heatdissipation more efficient and reduces the heat dissipation operation cost.

Description

technical field [0001] The invention relates to a transformer, in particular to an energy-saving and high-efficiency heat dissipation transformer, and belongs to the technical field of transformers. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc. At present, the heat dissipation of oil-based transformers mainly includes oil-based self-cooling, oil-immersed air-cooled, and forced oil circulation. Dry-type transformers mainly rely on air convection cooling, and the temperature of the transformer generally rises quickly. If the temperature of the transformer is too high, it will cause The transformer is burnt due to overheating, and there is still...

AI Technical Summary

Problems solved by technology

At present, the heat dissipation of oil-based transformers mainly includes oil-based self-cooling, oil-immersed air-cooled, and forced oil circulation. Dry-type transformers mainly rely on air convection cooling, and the temperature of the transformer generally rises quickly. If the temperature of the transformer is too high, it will cause The transformer is overheated and burnt down. There is still a lot of room for improvement in the existing transformer heat dissipation method, especially for the transformer in the protection cabinet that still uses self-cooling heat dissipation, and the heat dissipation effect is not ideal.

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