Simulation and Test on Vibration Characteristics of Power Transformer Windings

Abstract

In order to researching the vibration characteristics of power transformer windings, the paper simulated the electromagnetic and structure coupling field of power transformer aimed at a type S11-M-500/35 power transformer and the 3D model of power transformer is built based on the method of multiple physics coupling. The voltage and current in secondary side, magnetic field distribution and vibration of power transformer is obtained under the condition of rated load current. The load test is made on the prototype to calibrate simulation model. Analysis results indicate that simulation results accords with experiment data well, which provides the evidence for researching the optimization and faults diagnosis of the power transformer.