Delta-X Research has announced its upcoming release of reliability-based dissolved gas analysis (DGA) solutions, integrating science into transformer risk management.

The Transformer Oil Analyst (TOA4) DGA interpretation software identifies and assesses at-risk power transformers by correlating fault gas production with transformer failure, the company said in the press release.

Unlike conventional DGA that use a simple limits or thresholds-based approach to identify at-risk transformers without consideration of any real-world transformer failure data, reliability-based DGA correlates real-world gassing behaviour and transformer failures, to more deeply relate gassing behaviour with reliability.

With a community of supporting users providing transformer reliability data, advanced statistics has been applied to model the reliability of power transformers as a function of fault energy indices. The model illustrates fault energy just prior to failure as demonstrated from a statistically significant population of transformers.

Reliability-based DGA provides both a rear-view look of how lucky the transformer has been able to survive its gassing activity so far, and a forward-thinking risk assessment of a transformer's current gassing event. It also provides an indication of failure risk.

Source: Delta-X Research