Dissolved Gas Analysis (DGA) is one of the most trusted diagnostic tools for assessing the internal condition of a ...

Effective transformer maintenance depends on dissolved gas analysis. Effective maintenance of liquid-filled transformers begins with prevention of failure by testing transformer oil for unusual ...

Electrica signature analysis (ESA) uses the magnetic field in the air gap of an electrical machine to evaluate power quality conditions. Dry and oil transofrmer types are subject to problems ...

Part 1 of this three-part series laid out an overview of a proposal to create a numerical health index and establish a practical program for power transformer maintenance. Part 2 breaks down each of ...

With increasing pressure to lower costs, utilities are looking for tools to maximize the benefit of each dollar spent. Maintenance crews and engineers have a hands-on technical understanding but often ...