Electric Power Transformer Engineering Handbook

Most transformer knowledge lives in fragments - a university textbook that stops at the equivalent circuit, a vendor manual for one specific test, a protection relay guide with no design context behind it.

When a real transformer needs to be specified, protected, commissioned, or diagnosed, the engineer is left stitching together sources that were never meant to connect.

This handbook is built differently. Sixteen chapters carry one continuous engineering framework - and one running numerical example, a 20 MVA power transformer - from first-principles electromagnetics through core and winding design, per-unit analysis, thermal and loss calculations, cooling system sizing, three-phase connections, tap-changer regulation, dielectric design, protection coordination, factory and field testing, safe commissioning, condition-based maintenance, and finally failure analysis and life-cycle economics. Every chapter ends where the next one begins.

By the end, you'll be able to:

• Size a core and winding design from an EMF equation to a physical structure
• Calculate per-unit impedance, fault currents, and voltage regulation from test data
• Set and coordinate overcurrent, differential, and restricted earth fault protection
• Read and verify a factory test report against IEEE/NETA routine and type test criteria
• Commission a unit safely, including substation grounding and step/touch potential
• Interpret dissolved gas analysis (DGA) and decide when to refurbish versus replace