Vibration and Noise Characteristics of Transformers and Noise Reduction Measures
As the key equipment in the power system,the transformer undertakes the important task of electric energy conversion,and is also one of the main noise sources in the substation.In this paper,the vibration mechanism of the core and winding of the transformer is analyzed.The stress and deformation of transformer core and winding under the action of electromagnetic force are analyzed through the coupling theory of magnetic field and electric force field,so as to explore the generation mechanism,propagation characteristics and propagation law of the transformer noise.The corresponding noise reduction methods are proposed from the aspects of body noise reduction and noise propagation barrier.
transformervibration and noisenoise reduction method
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