I am looking to quantify the probability of failure or atleast failure rates of power transformers in utilities during the first 10 years of service ( year wise).
Sometimes it occurs due to unforseen natural disasters like the thunder storms
The infant mortality phase of the bath-tub curve and the corresponding part of the hazard function of power transformers can be neglected for the reasons explained in
Article Reliability analysis of 220 kV power transformers in Egypt
You will also find useful related failure and repair data of power transformers considering many voltage populations in
https://www.researchgate.net/publication/271613885_Outage_data_analysis_of_utility_power_transformers_based_on_outage_reports_during_2002-2009
In my profile, you will also find some other conference publications that consider the false tripping of power transformers, and other effects on their reliability, availability, and maintainability.
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