Transformer noise control method: The noise of the transformer and the noise of the exhaust fan constitute the main noise of the substation transformer room. In the base, the noise of the transformer is dominated by low-frequency noise, while the noise of the exhaust fan is dominated by mid- and high-frequency noise. Transformer noise comes from the transformer body and the cooling system. Transformer noise reduction is generally more difficult, the difficulty is that the implementation of such noise reduction projects, can not affect the normal operation and maintenance of the transformer, in the implementation of such projects, the Connexion company to rely on relevant technology, to take a vibration isolation, Sound insulation, noise elimination, sound absorption and other measures have effectively reduced the transformer noise.
　　Transformer noise control method:
　　1. Change the door normally used for operation and maintenance personnel to a special fireproof soundproof door. Close the windows that do not need to be open, or change to soundproof windows.
　　2. Install a ventilation muffler at the exit of the transformer's original fire-fighting exhaust cooling exhaust passage.
　　3, room walls, ceilings all do sound absorption.
　　4. Transformer and ancillary equipment are installed on the basis of damper pedestal, and the suspended part is equipped with elastic vibration-damping hanger.
　　5, single or small transformer equipment or consider the installation of sound enclosures or anechoic chamber governance measures.
　　Special attention: The noise of transformer equipment has obvious spectrum characteristics. When designing noise control, we must fully consider the different spectral characteristics of the sound source,