Delta-X Research
Electric utilities and industrial plants test their high-voltage power transformers, circuit breakers, and related equipment to ensure safe and reliable operation. Delta-X Research software helps to record and interpret the test data.
Our research applies modern statistical methods to insulating fluid dissolved-gas analysis (DGA) and online monitoring.
Transformer Oil Analyst software
Our main product, Transformer Oil Analyst (TOA), manages and interprets insulating oil dissolved-gas and physical test data. Its continuing improvement is based on research and development assisted by TOA users worldwide.
- The TOA4 Online Internet web service provides easy access to the latest, most powerful version of TOA without installing anything on your own computer. TOA4 Online has many subscribers from the USA, Canada, and around the world. Several of North America's largest electric utilities subscribe to TOA4 Online. Labs and electrical maintenance companies are also subscribing.
- The TOA4 Diagnostic Alerts option is now available. Read about its features.
- Our friends at Digital Inspections are delivering the Cascade/TOA4 interface to Cascade customers.
- TOA 3.3C is the desktop PC version of TOA which is now used all around the world.
We can provide a live demonstration of TOA4 Online or TOA 3.3C via the Internet. Contact us to make an appointment.
Appeal for Data for IEEE Standards Development
The working groups responsible for the IEEE C57.139 DGA guide for on-load tapchangers and the IEEE C57.104 DGA guide for transformers need DGA data for statistical analysis for development and validation of fault detection and diagnostic criteria. Case histories where DGA has been followed up by equipment inspection are also badly needed. Company and equipment identification are anonymized before data are submitted for analysis. If you can authorize release of some of your data for this worthy purpose, please contact us. Thanks!
TOA Support for Labs
We are happy to provide technical assistance and data file format information free of charge to assist analytical labs which wish to provide data to their customers in TOA-readable form.
Tech Notes Web Log
The Delta-X Research Tech Notes web log provides supplementary information about software usage and oil test data interpretation.