Noise control technology of box-type transformer

Box-type transformer will produce some noise during operation. The noise may affect the surrounding environment and the quality of life and work of people.

The cause of noise: The noise of box-type transformers is generally caused by internal core vibration, axial and radial clearance of fan bearings, coil and coil short circuit and other factors. At the same time, the transformer's operating current size and operation mode will also have different effects on noise.

How to control the noise of box-type transformer

1. Reduce core vibration

The vibration of the box-type transformer core is one of the main causes of noise. Reducing the vibration of the core can effectively reduce the noise of the box-type transformer. Specific methods include:

· The box is equipped with reinforcement or aggravation to increase the stability of the box;

· When the transformer is installed, a shock absorber is installed between the base and the box to separate the box from the transformer base and reduce vibration transmission.

2. Sound insulation and noise reduction

For the box-type substation with serious noise, the method of sound insulation and noise reduction can be adopted to control it. There are many kinds of sound insulation methods, such as wall sound insulation, window sound insulation, etc. And there are many kinds of sound insulation materials, such as sound absorbing cotton, sound insulation glass, etc., according to the specific situation to choose the appropriate sound insulation methods and materials. When sound insulation, it is necessary to pay attention to choosing sound insulation materials with good sealing as far as possible.

3. Modify the heat dissipation system

Cooling system modification of box-type transformer is also an important means to solve the noise problem of box-type transformer, the methods of cooling system modification include:

· Adopt air duct, heat dissipation bar and other heat dissipation accessories to make the heat dissipation of box-type transformer more uniform and efficient;

· Install a rotor fan to make the air flow direction perpendicular to the vibration direction of the core, and reduce vibration transmission and air noise;

· The use of new heat dissipation materials, such as aluminum alloy, can improve heat dissipation efficiency, reduce noise and also improve the operation life of the transformer.

4. Plan scientifically

The planning of box-type substation needs to be scientific and reasonable, and the following methods can be adopted:

· Away from residential areas: Plan the substation away from residential areas.

· Reasonable layout: In the layout, the noise generated part should be far away from the densely populated area to reduce the spread of noise as much as possible.

· Adequate ventilation: Properly set the vents to ensure the normal internal temperature of the box-type substation, so as to avoid greater noise caused by accelerated cooling during operation.

In practical applications, we need to choose appropriate noise reduction measures for combined application according to the specific situation of the box-type transformer and the characteristics of the surrounding environment. Through scientific and reasonable noise reduction design and implementation, we can effectively solve the noise problem of box-type transformers and provide better protection for people's living and working environment.