What is the life expectancy of a transformer? 20, 30, or 40+ years?

In the real world, transformers will be working at reduced average loads which could greatly increase the life expectancy of a transformer.

Introduction To Transformer Loss Of Life - CHK Power Quality

Transformer Reliability Decreases with Age

How Transformers Age

What is the life expectancy of a transformer? 20, 30, or 40+ years

What is the life expectancy of a transformer? 20, 30, or 40+ years

Can You Estimate or Predict The Lifespan of a Transformer?

Need to Take Transformers Beyond EPACT 2005

What is the formula to calculate the life of an electrical motor

Power transformers lifetime