Oil damping vibration attenuation device for transformer and oil-immersed transformer

Abstract

The invention provides an oil damping vibration attenuation device for a transformer and the oil-immersed transformer. The transformer comprises a box body, insulating oil and a transformer electricalbody, wherein the box body is filled with the insulating oil, and the transformer electrical body is immersed in the insulating oil and fixedly connected with the box body. The vibration attenuationdevice comprises more than one vibration attenuation unit which is immersed in the insulating oil. The vibration attenuation unit comprises a fixed structure unit, a movable structure unit and a damping spring used for connecting the fixed structure unit and the movable structure unit, wherein the fixed structure unit and the movable structure unit are coaxially arranged; the fixed structure unitand the movable structure unit penetrate through each other and can relatively move in the axial direction; the fixed structure unit is connected with the side wall of the box body, and the axial direction of the fixed structure unit is perpendicular to the axial direction of a coil of the transformer electrical body; and the movable structure unit is used for reducing the influence of vibration generated by the transformer electrical body on the side wall of the box body. The vibration attenuation device can reduce noise radiation of the transformer.

Description

technical field [0001] The invention relates to a host computer case and a server, in particular to an oil damping vibration reduction device for a transformer and an oil-immersed transformer. Background technique [0002] A large number of test data in substations show that the body noise of oil-immersed power transformers is one of the most important sources of substation noise. The vibration and noise reduction of the oil-immersed power transformer body is the most direct and fundamental means to effectively improve the noise environment of the substation. The inventor found through observation and analysis that the source of the vibration and noise of the transformer body is mainly the coil winding vibration caused by the magnetostriction of the core silicon steel sheet and the load current, and the vibration is transmitted to the oil tank wall through the coupling of the connecting member conduction and the transformer oil body surface, thereby generating radiated nois...

AI Technical Summary

Problems solved by technology

Although domestic and foreign power equipment related industries have explored a variety of technical measures to reduce the noise of transformers, most of them are limited by factors such as cost, heat dissipation, and maintenance. The cost-effectiveness of the existing various noise reduction measures is relatively high, and it is difficult to popularize and apply.

Images