Analysis Of The Measuring Points Selection Of Power Transformer Winding Deformation Though Vibration Test

In order to solve the uncertainty problem of the vibration measuring point selection of the winding deformation by vibration method. The test platform is set based on the vibration mechanism of transformer. Through a S11-M-500kVA/35kV test transformer, a series of tests on the normal and fabricated fault winding are made to obtain research dates. The difference between the data was quantified by the Euclidean distance and the 100HZ amplitude variation rate. Calculated the 1/6, 1/3 and 1/2 measure points of Euclidean distance are 0.013347, 0.003901 and 0.002584; and amplitude change rates in 100Hz are 68%, 23% and 13%. The analysis results of different winding test data show that the two characteristic quantities used in this paper can be used for the detection of winding deformation., and 1/6 point is better for Winding deformation detection by vibration analysis.