How does DGA analysis help in transformer condition assessment?

Dissolved Gas Analysis (DGA) is a critical tool in transformer condition assessment as it detects and quantifies gases dissolved in transformer oil. By analyzing these gases, we can identify potential issues such as overheating, arcing, or insulation breakdown. Specific gas ratios indicate different fault conditions, allowing for early diagnosis and preventive maintenance. This proactive approach enhances transformer reliability and extends its operational lifespan, ensuring optimal performance in power systems.