In today's society, transformers are widely used in various places, such as electricity, communications, transportation, etc. However, the transformer will produce a certain amount of noise during operation, especially during low-frequency operation, which will often have a certain impact on the surrounding environment and people's lives. Therefore, how to reduce the low-frequency noise generated by transformers has become one of the problems that need to be solved urgently. This article will introduce the causes of low-frequency noise in transformers and how to deal with them.
1. The cause of low-frequency noise of transformer.
The low-frequency noise of the transformer is mainly caused by the internal structure and mechanical movement of the transformer. Specifically, components such as iron cores, coils, fans, and other components inside the transformer generate vibrations and mechanical friction during operation, which will excite surrounding air molecules to vibrate, resulting in sound waves. These sound waves are dampened by the air during propagation, causing the sound to gradually weaken. However, when the transformer is in a low-frequency operating state, the low-frequency noise generated often has a high sound pressure level and a long wavelength, resulting in a long distance of sound propagation, which has a certain impact on people's lives.
2. Low-frequency noise treatment method of transformer.
In order to reduce the low-frequency noise generated by transformers, the following methods can usually be employed:
1.Reasonable selection of transformer model and capacity.
When choosing a transformer, the model and capacity should be reasonably selected according to the actual needs, and the large-capacity transformer with low-frequency operation should be avoided as much as possible. At the same time, when installing transformers, the influence of the surrounding environment should be taken into account, and the transformers should be avoided as much as possible in sensitive areas such as densely populated or close to residences.
2.Strengthen the shock absorption measures of transformers.
The transformer will generate vibration during operation, so certain shock absorption measures need to be taken during installation. For example, materials such as shock-absorbing pads or rubber pads can be laid underneath the transformer to reduce the sound waves generated by vibrations. In addition, the transformer can be regularly maintained and overhauled to detect and solve existing vibration problems in a timely manner.
3.Increase the sound insulation of the transformer.
In order to prevent the low-frequency noise generated by the transformer from spreading to the external environment, certain sound insulation measures can be set around the transformer. For example, structures such as soundproof walls or soundproof rooms can be built around transformers to reduce the spread of noise. In addition, the outer surface of the transformer can be covered with soundproofing materials, such as soundproofing cotton or soundproofing panels. These sound insulation measures can effectively reduce the impact of low-frequency noise of the transformer on the external environment.
4.Low-noise transformers are used.
With the continuous development of technology, there are now some low-noise transformers. These transformers use special designs and technologies that significantly reduce the low-frequency noise generated by the transformer. For example, some low-noise transformers use measures such as chute structure or special heat dissipation design to reduce mechanical friction and vibration. In addition, some low-noise transformers also adopt advanced electromagnetic design and technical means to reduce the generation of electromagnetic noise. The application of these low-noise transformers can effectively reduce the impact of transformers on the surrounding environment and people's lives.
III. Conclusion. 
The low-frequency noise of the transformer has a certain impact on the surrounding environment and people's lives. In order to reduce this effect, it can be dealt with by rationally selecting the transformer type and capacity, strengthening the shock absorption measures of the transformer, increasing the sound insulation measures of the transformer, or adopting low-noise transformers. In practical application, the appropriate method should be selected according to the actual situation to reduce the impact of low-frequency noise generated by the transformer on the surrounding environment and people's lives.