"Recent Trends in the Condition Monitoring of Transformers"
reflects the current interest in replacing traditional techniques
used in power transformer condition monitoring with non-invasive
measures such as polarization/depolarization current measurement,
recovery voltage measurement, frequency domain spectroscopy and
frequency response analysis. The book stresses the importance of
scrutinizing the condition of transformer insulation which may fail
under present day conditions of intensive use with the resulting
degradation of dielectric properties causing functional failure of
the transformer.
The text shows the reader how to overcome the key challenges
facing today s maintenance policies, namely:
The selection of appropriate techniques for dealing with each
type of failure process accounting for the needs of plant owners,
plant users and wider society; and
Cost-efficiency and durability of effect.
Many of the failure-management methods presented rely on the
fact that most failures give warning when they are imminent. These
potential failures give rise to identifiable physical conditions
and the novel approaches described detect them so that action can
be taken to avoid degeneration into full-blown functional failure.
This on-condition maintenance means that equipment can be left in
service as long as a specified set of performance standards
continue to be met, avoiding the costly downtime imposed by routine
and perhaps unnecessary maintenance but without risking equally
expensive failure.
"Recent Trends in the Condition Monitoring of Transformers" will
be of considerable interest to both academic researchers in power
systems and to engineers working in the power generation and
distribution industry showing how new and more efficient methods of
fault diagnosis and condition management can increase transformer
efficiency and cut costs."
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