MOLD TRANSFORMER DIAGNOSIS METHOD USING SEVERITY ASSESSMENT CAPABLE OF ESTIMATING THE REPLACEMENT TIMING

摘要

PURPOSE: A mold transformer diagnosis method using severity assessment is provided to identify deterioration causes in the re-evaluation process, thereby improving the reliability of the diagnosis.;CONSTITUTION: A diagnosis system receives the basic information of a mold transformer (S101). A vibration measurement unit of the diagnosis system measures the vibration of the mold transformer (S102). The diagnosis system performs the fast fourier transform (FFT) of a measured vibration signal to extract a vibration frequency (S103). The diagnosis system produces severity by the evaluation of the extracted vibration frequency (S104, S105).;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Start; (BB) End; (S101) Input basic information about a mold transformer; (S102) Measure vibration; (S103) Perform fast Fourier transform (FFT); (S104) Evaluate a triangular diagram; (S105) Produce the triangular diagram; (S106) Determine the state; (S107) Display the state and a solution