GeneralPAC- Making power system intuitive

This video was brought to you by, making power systems Intuitive, Open and Free for Everyone, Everywhere. Consider subscribing and supporting through This is a mechanism for you to support us financially so we can continue making high quality power system video tutorials. Our corporate sponsor for this topic is from Seattle, Washington. Contact them for industrial and commercial power system studies.

Introduction to the Delta Wye transformer connection Part 1.

This is the first part of the series to the introduction to the Delta Wye transformer connection. In this series, we're going to heavily focus on the Delta connection for obvious reasons. I found the delta connection to be much more complex, confusing, and easy to mess up compared to the Wye connection.

In this module, we're going to simply draw and observe the Delta Wye transformer connection. In Part 2, we'll look at voltage quantities.

Check out the resources section under this video for helpful comments, suggestions, and clarifications. There are other videos listed in the resources section that will help us better understand this transformer connection.

Let's begin by drawing a single phase transformer with two windings. We'll assuming the winding on the left is the primary side, the HV side, or the source side. And the winding on the right is the secondary side, or the Low Voltage side or the Load side.

We'll draw our polarity marks to indicate the polarity side of the winding and we'll also indicate magnetic coupling with two parallel lines. And lastly, we'll assume that the primary line-to-line voltage is 4160V and the secondary line-to-line voltage is 480V.

What we have so far is a single phase transformer – and we'll assign capital A on the primary winding and a lower case to the secondary winding. To make a three phase transformer, we'll simply add winding B and winding C.

Since we're illustrating a Delta Wye transformer connection, let's start by connecting our secondary winding in Wye. We're going to connect winding a, winding b, and winding c together. And for the sake of simplicity, we're going to ground the neutral wire. This is Wye grounded transformer connection. The wye grounded transformer connection has different characteristics then the Wye-ungrounded transformer connection. This will be discussed in a different module.

Now we're going to connect the primary windings in the delta. There are many ways to connect a transformer in delta and each connection gives us a unique characteristics. We'll explore different delta transformer connection in later modules. One of the most common delta connection is called a DAC or the Dyn11 connection. And we'll draw this connection like such. And this my friends, is a Delta Wye grounded, 3 phase transformer connection.

We'll cover line-to-line voltage and phase voltage quantities in Module 2. This module was brought to you by making power system Protection, Automation, and Controls intuitive.

Our coorporate sponsor AllumiaX,LLC published a new blog on "Types of Transformer" In this blog, we will aim at enlightening the readers about Transformer basics and working principle, types of transformer on the basis of voltage, medium, uses, configuration and place of usage, their advantages and limitations.

For Continue Reading, CLICK HERE.

Greetings from the GeneralPAC Team!

We make high-quality Power Systems Video Tutorials on complex topics that are free and open to everyone!  Thank you so much for supporting us through Patreon so we can continue doing good and valuable work.

What is Patreon and why do we use it?

Patreon is a fantastic portal that allows our fans and community to make monthly contribution (like Netflix subscription) so we can continue creating high-quality power systems video tutorials. In return, you get access to incredible perks like voting on future topics, getting your questions answered, access to VIP Q/A webinars with the creators of GeneralPAC, and much more! We THANK YOU for supporting us

Why do we need your support?

An incredible amount of time and effort is needed to develop high-quality video tutorials. Each video (Part 1 for example) takes approximately 10 hours to complete which includes learning the concept ourselves, brainstorming creative ways to teach and explain the concepts, writing the script, audio recording, video recording, and editing. It's no wonder why Hundreds-of-Thousands of people have watched, liked, subscribed, and left positive comments on Youtube channel. Your support truly makes all the difference.

Become a patron today!