A power transformer as a source of noise

作者：Zawieska Wiktor Marek^*

来源：International Journal of Occupational Safety and Ergonomics, 2007, 13(4): 381-389.

• power transformer
• noise reduction
• active methods
• transformer modeling
• rectangular plate vibrations
• transformer noise
• vibroacoustic analysis

This article presents selected results of analyses and simulations carried out as part of research performed at the Central Institute of Labor Protection - the National Research Institute (CIOP-PIB) in connection with the development of a system for active reduction of noise emitted by high power electricity transformers. This analysis covers the transformer as a source of noise as well as a mathematical description of the phenomenon of radiation of vibroacoustic energy through a transformer enclosure modeled as a vibrating rectangular plate. Also described is an acoustic model of the transformer in the form of an array of loudspeakers.

• 出版日期2007