Development of Families of Acoustic Radiation Attenuation Technical Devices of Closed Type Electric Transformer Substation

The article presents the development of families of original technical devices of acoustic radiation attenuation produced by the active part of power electrical transformer and its ventilation cooling, which involve the use of various types of frequency- and temperature- tuned acoustic resonators (quarter-, half-wave, Helmholtz), presented both as a single (autonomous) acoustic resonators, and as a interlocked multiple similar and / or different types of acoustic resonators formed compact prefabricated assemblies of acoustic resonators battery type.