变压器油中溶解气体的故障诊断方法，即IEC三比值法。用Matlab 程序运用的结果进行整理而得到的约简后的故障诊断决策表-Dissolved gases in transformer oil fault diagnosis method, that is, three-ratio method IEC. Matlab program used to collate the results of the application obtained after reduction of the fault diagnosis decision table