Transformer Fault Diagnosis Method Using Dissolved Gas Analysis: IEC Three-Ratio Approach

Resource Overview

IEC Three-Ratio Method for transformer fault diagnosis through dissolved gas analysis in insulating oil. Implementation using MATLAB programming to generate simplified fault diagnosis decision tables for enhanced diagnostic accuracy.

Detailed Documentation

Various methods exist for transformer fault diagnosis using dissolved gas analysis in insulating oil, with the IEC Three-Ratio Method being the most widely adopted approach. This technique determines potential transformer faults by analyzing specific gas ratios obtained from dissolved gas measurements. When implementing the IEC Three-Ratio Method through MATLAB programming, the analysis process involves gas ratio calculations, threshold comparisons, and pattern recognition algorithms that ultimately generate a simplified fault diagnosis decision table. This decision table, created through systematic data processing and rule-based classification in MATLAB, enables engineers to accurately identify transformer fault conditions and implement appropriate maintenance strategies, thereby ensuring reliable transformer operation and preventing unexpected failures.