Maintaining equipment is not just about fixing it when it breaks. It's about working hard to make sure it runs well all the time. This means that even when the equipment is working well, maintenance workers are still finding ways to improve it to make sure it keeps running smoothly.This book aims to explain the best ways to do work that is usually done to avoid issues with transformers. This book covers everything about choosing and storing transformers. It also talks about advanced methods for checking transformers using predictive maintenance or condition monitoring. It also includes a real example of using FMEA to make power transformers more reliable in a system or production process.The techniques in this book are not for making big changes to repair a transformer. However, many things are done as part of regular procedures.Maintenance and big transformer repair could be the same. We can do the tasks to take care of the transformer if it's not too broken.This book is for everyone, including technical, engineers, managers, leaders, and quality professionals.