TRAFOL Electrical Transformer Calculator


This app is free and contains no advertising.

The electrical transformer calculator will help you interpret your oil analysis results and better manage your transformer asset. The transformer calculator uses the latest IEC and IEEE standards to help gain insight from your oil analysis results. Oil analysis is the primary condition monitoring technique used to assess a transformer’s condition and this app will help you understand your results!

The electrical transformer calculator app includes:

• Doernenburg ratio analysis.
• Rogers ratio analysis.
• Dissolved Gas in Oil Analysis (DGA).
• Physicochemical analysis (water content, colour etc.).
• Furan analysis (and degree of polymerisation).
• Duval triangle.
• Gas generation rate calculator.

Limits for each analysis type have been set using a simple traffic light system; if the app shows red you may need to take action. Trending of all analysis types is possible; this feature gives you a good overview of past and present values.

In addition, you can save all your electrical transformer data within the app and online. This includes:

• Original Equipment Manufacturer (OEM).
• Model.
• kVA or MVA.
• Primary voltage.
• Secondary voltage.
• Serial number.
• Year.
• Type.
• And more…

But that's not all… The unique ‘Share-a-Spare’ feature allows you to register spare transformers you have in your fleet. If you ever need a spare, contact TRAFOL and we will let you know if there is a appropriate registered spare in your area. Likewise, you may also be contacted through TRAFOL to help other plant’s if they need a spare. Share-a-Spare is an opt-in programme with no obligation to opt-in.

CSV Extract – If you wish to have your data in csv format, simply send us an email ( and we will extract it from the database and email it to you directly (a direct download feature is being developed).

Trafol has been translated into English, French, German, Spanish, Portuguese, Chinese, Russian, Hindi and Bengali.

If you want to correctly interpret your oil results without needing to be an oil analysis expert, this app is for you!

If you like the electrical transformer calculator app, please rate it!

IMPORTANT: In order to future proof the app, we have added a 'full screen' option in the settings, if for some reason the app does not display properly please go to 'settings' and click 'full screen'.

We do not disclose any contact details through Share-a-Spare without prior permission. We never spam. TRAFOL does not assume any responsibility for the interpretation of your oil results or any actions taken based upon those results. If in doubt concerning your results, a specialist should be consulted.
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What's New

Fixed some bugs.
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Additional Information

June 8, 2018
Current Version
Requires Android
2.2 and up
Content Rating
Offered By
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