Power Transformer Spatial Acoustic Radiation Characteristics Analysis under Multiple Operating Conditions

Liming Ying, Donghui Wang, Jinwei Wang, Guodong Wang, Xiaowen Wu, Jiangtao Liu
2018 Energies  
Spatial acoustic radiation characteristics analysis is the precondition of reducing the noise influence of outdoor power transformer while multi-physical field coupling method can be applied to quantify and reveal these acoustic characteristics of a running power transformer. In this study, based on the theoretical analysis about noise generation and dissemination process, an acoustic radiation model about oil-immersed power transformer was established and verified with field test data in time
more » ... test data in time and frequency domain. Then, far-field analysis and directivity analysis were accomplished to characterize acoustic field of power transformer under multiple operating conditions. Finally, the acoustic radiation influence on potential surrounding buildings were analyzed and discussed. The visual results and conclusion provide acoustic guide for the optimal planning and design about both power substation and ambient buildings.
doi:10.3390/en11010074 fatcat:4ig4dc7sbnhyhppkrb3f72l4ia