What is the significance of dissolved gas analysis in transformer oil according to IEC standards?

The significance of dissolved gas analysis in transformer oil according to IEC standards lies in its ability to detect and diagnose potential faults within power transformers. By analyzing the types and concentrations of gases dissolved in transformer oil, operators can identify issues such as overheating, arcing, or insulation breakdown. This proactive monitoring helps in maintaining transformer health, ensuring reliability, and preventing catastrophic failures, aligning with IEC guidelines for effective asset management.