| Title |
A Study of the Low Noise Transformer by Avoiding the Structural Resonance |
| Authors |
최원호(Choi, Won-Ho) ; 김진(Kim, Jin) ; 석호일(Suk, Ho-Il) |
| Keywords |
Transformer ; Magnetostrictive Vibration ; Flux Density ; Resonance ; Core ; Sound Intensity |
| Abstract |
Demands for the noise reduction of a transformer has been becoming an common issue because it has been used mainly at the residence area such as an apartment complex. This paper shows 2 trouble shooting examples that high noise sources were found out structural resonance of a transformer by 120Hz exciting frequency caused from magnetostrictive vibration of core. This paper presents that vibration data are very important to find noise source and how to avoid natural frequency of core and tank wall |