Analysis And Prediction Of Fundamental Amplitude Of The Running Transformer

Abstract

Abstract. In this paper, a new model developed to estimate transformer vibration is presented. The model contains three parameters-current, voltage and temperature， which can be easily measured. Also, the vibration theory for transformers was analyzed, a six-channel vibration measurement system is set up and the vibration signals are measured. The least-squares method was used to calculate the model parameters which are used as print parameters to predict the vibration amplitude. The model has been tested experimentally on a running transformer fitted with sensors. Comparing with other two predicting model, we find the new model is more accurate. The new model also needs more data from running transformers to improve it.