When to replace aging transformers

Replacing a Distribution Substation: Options and Considerations

“…the life expectancy of major electrical equipment can vary widely based on a number of factors, such as the quality of materials, workmanship, maintenance, electrical loading, and environmental causes. an Ieee Petroleum and chemical Industry committee (PcIc) paper presented in 2010 [2] provides insight on when to replace aging transformers. although trying to predict the exact day of failure is almost impossible, there have been numerous studies conducted depicting average or probable failure rates.…”