International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
38 The Electric Field Analysis of Power Transformer Bushing
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Bushing is a kind of important instrument which is widely used in transformer and switch. The bushing's research will take precedence over the development of electrical equipment. This paper uses finite element method to analysis its electric field distribution, based on acquaint the insulator structure characteristic of single ceramic transformer bushing. First mathematics model of bushing is constituted. Then the ANSYS soft is used to calculate it. In the end, some calculated results are analyzed. Some conclusions are got. In this kind of bushing, the most uneven electric strengthen lies between the bushing's teeth, and the most strengthen electric field lies in transformer oil. It is easiest to appear part-discharge. This conclusion has practical instructional meaning to the usage of this bushing. The analysis method using in this paper can widely applied in more complicated condition of various bushing's electric field analysis.