First, the transformer installation problems
(1) Cause: If the installation is not good, it will aggravate the vibration of the transformer, the transformer noise amplification.
(2) to determine Methods: channel rack up the transformer will increase the noise; the transformer is not solid or irregularities (a corner vacant), or thin plate.
(3) Workaround: Transformers car shock pad underneath, to resolve some of the noise; the installation of units to transform the original installation.
 
Second, by the installation environment
(1) Cause: the environmental impact of the transformer noise, environment unfavorable transformer noise increases 3dB ~ 7dB.
(2) to determine the method: the original use of oil change, after the change will affect the dry-type transformers transformer noise. The reason is that crude oil becomes relatively small room, there is a spill chamber and a spill hole, just like on a speaker transformer; transformer room is very large and very open, no other equipment, there is an echo; transformer from the wall too close less than 1 meter. Transformer on the corner, the wall reflected noise and noise superimposed transformer that increases noise.
(3) Resolution: Interior may be appropriate to install a number of sound-absorbing material.