Series 2

What you will learn

This course will teach you all the fundamentals of Power Transformer. We will start from Introduction to Wye-Wye Connection & Circulating Currents and Voltages


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

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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.




Introduction to the Wye Wye Transformer

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

Introduction to Delta Wye Transformer and Circulating Currents and Voltages

Part 1: Introduction to Circulating Currents & Voltages

Part 2: Selecting Parameters