Premium Membership

Learn about power engineering and HV/MV/LV substations. Study specialized technical articles, electrical guides, and papers.

Home / Technical Articles / An overview of transformer connections and diagrams in the electric power system

Transformer analysis

Power transformers are used extensively by traditional electric utility companies, power plants, and industrial plants. This technical article summarizes the basic types, connections, and diagrams of transformers needed for analyzing the electrical transmission and distribution systems.

Analysing power transformers in electric power systems
Analysing power transformers in electric power systems

Analyzing electric power systems, either through manual calculations or software simulation, use the simplest models of the various components (for example, lines, cable, generators or transformers, which is the subject of this article) that show the phenomenon being studied without unnecessary detail.

Transformer equivalent circuits not only make the principles clearer, but also these simple models are used in practice.

Table of contents:

  1. Transformer equivalent circuit
  2. Phase Shifts in Three-Phase Transformers
  3. Three-Winding Transformers
  4. Autotransformers
  5. Earthing (Grounding) Transformers
  6. Harmonics
  7. Tap-Changing Transformers
  8. Typical Parameters for Transformers

PREMIUM Membership Required

This page requires a Premium Membership. Get access to premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan’s benefits and choose the membership that works best for you or your organization.

You can purchase annually based Plus, Pro, or Enterprise membership.

Cyber Monday Offer! – Get 20% off on Pro Plan, use discount code: BLACKFRIDAY20

Log InSign Up

Premium Membership

Get access to premium HV/MV/LV technical articles, electrical engineering guides, research studies and much more! It helps you to shape up your technical skills in your everyday life as an electrical engineer.
More Information

Edvard Csanyi

Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV/MV switchgears and LV high power busbar trunking (<6300A) in power substations, commercial buildings and industry facilities. Professional in AutoCAD programming.

Leave a Comment

Tell us what you're thinking... we care about your opinion!

EEP Academy Video Courses

The learning platform for LV/MV/HV electrical engineers. Learn from experienced engineers and sharpen up your knowledge.
Schneider Electric - Coming back stronger together!