Study on Vibration Noise of Power Transformers Based on Multi-physical Field Simulation and Experiment

With the rapid development of power transmission and transformation in our country, transformer, as an important hub in the process of power transmission and transformation, has attracted much attention. The problem of vibration and noise pollution will occur during the operation of transformers, and it is becoming more and more serious with the continuous improvement of the number, capacity and voltage level of transformers, so the research on the problem of transformer vibration and noise has attracted much attention. In this paper, A 110kV, 63MVA transformer model was built through the finite element simulation platform, and the electromagnetic and mechanical multi-physical field coupling method was adopted to simulate the transformer vibration. In addition, KeyCam2 acoustic imager was used to collect the transformer noise on site, and the simulation and test results were analyzed.