Методология исследований источников вибрации и шума системы охлаждения силовых трансформаторов

The operation of power transformers is accompanied by vibration and noise of structural elements of a power transformer. In this paper, a method for calculating the vibration and noise of the auxiliary equipment of the cooling system for a power transformer was tested. An asynchronous motor with a squirrel-cage rotor 4A100S4U3 was considered as the main source of noise in the cooling system for the power transformer. Various options for studying the vibration and noise of an asynchronous motor when powered by an industrial frequency source and a voltage converter have been carried out. It is determined the amplitudes of spacetime wave of magnetic induction corresponding to the modes of spatial oscillations of the stator and rotor. In the research process, the amplitudes of oscillation (vibration) of the stator and rotor corresponding to the modes of spatial oscillations were also calculated. Recommendations are given to reduce vibration and noise of the cooling system of power transformers.

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