Transformer Oil Analyst (TOA) by Delta-X Research is an advanced decision-support software platform that helps utilities and energy-intensive organizations assess and manage the health of their power transformers using dissolved gas analysis (DGA). Designed to support predictive maintenance and long-term asset planning, TOA enables engineers and asset managers to detect developing faults early, prioritize maintenance actions, and reduce the risk of unexpected transformer failures.
Unlike conventional DGA tools that rely on simple gas limits or rule-based diagnostics, TOA applies an advanced methodology known as Reliability-based Dissolved Gas Analysis. This approach connects fault gas production directly to real transformer failure data. By comparing a transformer’s gas profile against a statistical model derived from thousands of real-world transformers, TOA quantifies the likelihood of failure and provides a clearer picture of transformer risk and condition.
TOA evaluates key indicators such as cumulative severity and hazard factor to determine how likely a transformer is to fail if current gassing trends continue. This allows maintenance teams to identify which transformers require immediate attention and which assets may need replacement planning in the future. The result is more informed decision-making, improved reliability, and optimized maintenance budgets.
The platform is vendor-agnostic, working with laboratory data, monitoring systems, and service providers from any manufacturer. With the optional Monitor Watch™ capability, TOA can also analyze and compare online monitoring data with laboratory DGA results in near real time, delivering consistent diagnostics while detecting potential data quality issues such as sensor drift or sampling errors.
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