DGA Risk Estimator

Enter dissolved gas concentrations to get a preliminary risk indication based on commonly used DGA interpretation guidelines.

Gas Concentrations

Enter values in parts per million (ppm). Leave fields blank if data is unavailable.

Hydrogen (H₂)

ppm

L2: 150 / L3: 300

Methane (CH₄)

ppm

L2: 75 / L3: 150

Ethylene (C₂H₄)

ppm

L2: 90 / L3: 200

Ethane (C₂H₆)

ppm

L2: 65 / L3: 130

Acetylene (C₂H₂)

ppm

L2: 3 / L3: 30

Carbon Monoxide (CO)

ppm

L2: 1400 / L3: 2700

Carbon Dioxide (CO₂)

ppm

L2: 14000 / L3: 28000

Enter at least one gas concentration above to see a risk indication.

Disclaimer: This tool uses simplified IEC 60599 / IEEE C57.104 guidelines as a reference only. Full DGA interpretation requires professional analysis using TOA’s Reliability-based DGA methodology. Results from this tool should not be used as the sole basis for operational decisions.

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