Power Transformer Fundamental - Series 2

Series 2
Rating: 3.1 out of 5 (2 ratings)
437 students
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This course will teach you all the fundamentals of Power Transformer. We will start from Introduction to Wye-Wye Connection & Circulating Currents and Voltages


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Power Transformer Fundamental Series 2

Transformer is the #1 main electrical component in Power Distribution System. A huge amount of high voltage comes in transformer which is transformed to the required voltage without incurring high interruption in supply. The need of supplying smooth power to the consumers requires extensive development in the designing of transformers. The selection of transformer winding connections depends on the requirements of load, cost of insulation, and inherited problems affecting the performance of system. It is important to understand all the transformer winding connections in depth. So, an electrical designer or student needs to know transformer basics, their working mechanism, and different configurations of connecting transformer windings in their arsenal.

This course will teach you all the fundamentals of Power Transformer. We will introduce you to Wye Wye transformer connection. In this series, you will learn all the confusing theories of Wye Wye transformer connection from very scratch. This series will teach you how Wye connection is made on windings of transformer, what are different ways to configure Wye connection. To give you a better understanding of Wye Wye transformer connection, we discussed the difference of line and phase current in both windings of the transformer. Furthermore, you will learn how voltage and current quantities are calculated in addition with the rules for balanced system, and how balanced sets are created by phasors.

Lastly, we will explain Circulating Currents and Voltages for Delta Wye connected transformer. Very simple power system is modeled as an example to calculate current and voltages during a faulted condition. For the practical model, you will learn how to calculate both phase and sequence current and voltages, how to relate sequence network diagrams with hand-calculated short circuit currents. Furthermore, we will learn how current flows through the Delta Wye transformer connection. And how the High Voltage side of the system differs from the Low Voltage side. This module consists of three parts, each building upon your knowledge based on previous ones.

Before you start this series you must first enroll in series 1 of this course to learn below topics

Introduction to Delta Wye Transformer Connection

  • 17 parts | 1.5 hours + | thorough

  • Unlock the complex equations of Line and Phase voltage by phasor diagrams

  • Learn how winding connections are represented in transformer nameplate

  • Explore methods to learn how transformer connection is represented

What you will learn from this series?

Introduction to Wye Wye Transformer Connection

  • 4 parts | 0.5 hours | thorough

  • How wye connection is made

  • Different ways to configure wye connected transformer

  • How voltage and current quantities are calculated

  • How balanced sets are created by phasors

Introduction to Delta Wye Transformer Connection and Circulating Currents and Voltages

  • 2 parts | 5 Minutes+ | thorough

  • How to hand calculate current and voltages during a faulted condition.

  • How to calculate both phase current and voltages as well as sequence current and voltages.

  • Ways to relate calculated short circuit currents with sequence network diagrams

  • Method to draw zero-sequence network for a delta wye transformer

A quick word from GeneralPAC by AllumiaX

We add value by creating very insightful, highly engaging, and simply intuitive power system video tutorials and courses. Our objective is to sharpen YOUR skills and further YOUR understanding of these concepts.

Our promise is to make the fundamental series available to everyone who cannot afford it. This promise is fueled by our community, our fans, and our sponsors. If you can afford to purchase this video, please be considerate and fair at the checkout window on our website. Remember, our objective is to sharpen YOUR skills and further YOUR understanding of these concepts.

It takes almost 12 hours to complete videos including making of the conceptual script, audio, and video recording as we put our efforts and time to brainstorm creative ways so that you have a strong understanding of each topic. It's no wonder why thousands of students and professionals have trusted our video and hundreds of thousands of people have watched, liked, subscribed, and left positive comments on our GeneralPAC By AllumiaX YouTube channel.

Lastly, our video tutorials are not here to replace the way we traditionally learn about power systems through classroom environment, or reading textbooks, or learning from peers and tribal knowledge within your career, or hands-on & on-the-job learning. We simply supplement the traditional methods with a modern, flexible, and intuitive approach. We believe in providing a platform where students from all communities can ask their questions and provide detailed answers to each question making Power System learning easy and captivating.

Who this course is for:

  • Higher education student, Professors, Electricians & Technicians in Electrical power systems

Course content

2 sections6 lectures35m total length
  • Part 1: Introduction to Wye-Wye Connection
  • Part 2: Wye-Wye Connection Diagram
  • Part 3: Wye-Wye Connection Voltages & Currents
  • Part 4: Relationship b/w Line & Phase Voltages


Power Systems Content Creator & Founder GeneralPAC
Abdur Rehman
  • 4.4 Instructor Rating
  • 13 Reviews
  • 1,608 Students
  • 5 Courses

Abdur Rehman is an experienced professional with over 8 years of experience in the Utilities industry with a particular focus on Power Systems operation, protection and System studies. He has been an active participant and Young Professional Leader (Volunteer) in the Greater Seattle Area. Perhaps most importantly he has always been passionate about education and his dedication to the development of GeneralPAC platform that is the key motivation behind this VLOG series.

Doing his master’s in engineering technology management from Washington State University, Abdur Rehman has extensive practical experience when it comes to engineering design, field, compliance in the Power Systems Industry.

He worked closely with Power Utilities, thus bringing a wealth of knowledge, explosive insight, and thoughtful prospective in his courses and tutorials.

In a nutshell, all GeneralPAC by AllumiaX courses are special because of his love to share knowledge in the most intuitive way possible.