chapter  23
On-Line Monitoring of Liquid-Immersed Transformers
Pages 24

On-line monitoring of transformers and associated accessories (measuring certain parameters or

conditions while energized) is an important consideration in their operation and maintenance. The

justification for on-line monitoring is driven by the need to increase the availability of transformers, to

facilitate the transition from time-based and=or operational-based maintenance to condition-based

maintenance, to improve asset and life management, and to enhance failure-cause analysis.