On Line Diagnostic Monitoring for Large Power Transformers

       

Further reading

• On Line Diagnostic Monitoring for Large Power Transformers (2824)

By Angelo Baggini, University of Bergamo
& Franco Bua, Engineering Consulting & Design

In industrial plants, power transformers are expensive components of high strategic importance. Unavailability due to faults generally results in high costs, both in relation to repair work and in terms of lost production.

Efficient diagnostic monitoring capable of highlighting incipient faults and therefore able to reduce the fault rate and downtime of the transformer within considered physiological limits are generally of extreme interest for maintenance departments.

This article introduces a number of general considerations on fault statistics, and explains the main on-line diagnostic monitoring approaches.