This is a continuation of my series on Electromagnetism. In this blog, I will be looking at a Y - Y or star star-connected power transformers and obtaining Phase to Phase from Phase to Neutral Voltages. You can find this topic in my course entitled…“Electrical 3 Phase Power Transformers Fundamentals”. You can access this, and my other courses in my Stan store, at this web address…https://stan.store/GVB

As I have said the Star - Star Connected transformers can deliver two voltage levels on both the primary and secondary...ie Ph - Neutral or Ph - Ph. Let's look at the primary side only, for example. The secondary side is exactly the same only at different voltage levels of course. We can use the phase to neutral voltages as seen here or we can use the phase to phase voltages…The RW voltage, for example, is the difference between the R phase voltage and the W phase voltages or, R minus W which is the red phase vector plus the negative W phase vector which gives us the R to W phasor.

Similarly we can find the WB phase to phase voltage…

…and the BR phase voltage.

I want to introduce you to three vendors that I am promoting and will be promoting for the next little while. They happen to be three of the most popular power supply vendors on the market today. I will be providing links to their sites which if you use, you will be able to take advantage of a reduction in their cost price and as well…I will receive a small commission for promoting them but rest assured they are quality products. So stay tuned next three slides will provide the information that you are looking for.

First off is EcoFlow… I have introduced you to this vendor earlier and it is still one of the vendors that are on the top of my list. They have an exciting line of various power supplies which you can view and recognize a price reduction by going to this website…https://bit.ly/3MjaFTV… Remember that the address is case sensitive.

Next on the list is Anker… their range of products are similar but they also cater to the smaller output devices that are very portable. Again you can take advantage of some small sales by going to this WEB address…https://shrsl.com/4nisu

And finally there is Bluetti who also cater to the smaller output devices as well as having the larger standby power supplies… You can view their full range of products and again take it vantage of price reductions by going to this WEB address…https://shrsl.com/4nisy

Electrical Power Systems Training by PSPT -----(Power Systems Protection Training)-----

Basic Electrical Learning

Conductors and Insulators are investigated along with their connected components, Capacitors, Inductors, and how they are influenced by Electromagnetism.

The abbreviations AC and DC are often used to mean simply alternating and direct, as they are applied to current or voltage.

Advanced Electrical Learning

“A Per-Unit System ” is the expression of system quantities as fractions of a defined base unit quantity. Calculations are simplified because quantities expressed as per unit do not change when they are referred from one side of a transformer to the other.

In these courses, you will learn exactly what Per Unit Analysis is, the main advantages of using it, how manufacturers of equipment use and rate their products, and the technique of converting to and from the Per Unit system.

Several examples of working with Per Unit are demonstrated in this crisp clear presentation. When you finish you will have a though understanding of this subject.

It is important for all power engineers and technicians to be familiar with the concept of Per Unit as it is being used and referred to every day in power flow, short circuit evaluation, and motor starting studies.

An understanding of this method is essential for the understanding of fault analysis and modern-day protection schemes. These courses will provide you with the knowledge to comprehend the concept and how it is applied.

Supplemental Electrical Lessons

Specialized Electrical Lessons

Specialized lessons include the “Protection & Control(P & C)” principles of high voltage stations. HV Bus Differential Protection is studied along with restrictions due to CT saturation & mismatch and its solution, “Restraint Differential Protection”.

Transformer Connections: (Y – Y; Delta – Delta; Y – Delta; Delta – Y & Y – Zag Zig) are examined along with Transformer Clock System Vector Nomenclature.

Lastly, there is a special section dedicated to “Single and Three-Phase Metering “, including old analog and new digital kilowatt-hour meters.

Conclusion

Blog #29 - Y - Y Transformers...Phase to Phase from Phase to Neutral Voltages

Similarly we can find the WB phase to phase voltage…

…and the BR phase voltage.

Next on the list is Anker… their range of products are similar but they also cater to the smaller output devices that are very portable. Again you can take advantage of some small sales by going to this WEB address…https://shrsl.com/4nisu

My free “electrical crib sheets”…https://bit.ly/3VJle8z

See the full range of ANKER products…https://bit.ly/3YFQpmO

Directly access my Stan Store courses…https://stan.store/GVB

PSPT Electrical Power Systems Training by PSPT Power Systems Protection Training

Get ready for a wealth of information, engaging content, and an enhanced learning experience as we continue to grow and share valuable insights.

Stay connected, stay curious, and explore the possibilities!

Electrical Power Systems Training by PSPT -----(Power Systems Protection Training)-----

Basic Electrical Learning

Conductors and Insulators are investigated along with their connected components, Capacitors, Inductors, and how they are influenced by Electromagnetism.

The abbreviations AC and DC are often used to mean simply alternating and direct, as they are applied to current or voltage.

Advanced Electrical Learning

“A Per-Unit System” is the expression of system quantities as fractions of a defined base unit quantity. Calculations are simplified because quantities expressed as per unit do not change when they are referred from one side of a transformer to the other.

In these courses, you will learn exactly what Per Unit Analysis is, the main advantages of using it, how manufacturers of equipment use and rate their products, and the technique of converting to and from the Per Unit system.

Several examples of working with Per Unit are demonstrated in this crisp clear presentation. When you finish you will have a though understanding of this subject.

It is important for all power engineers and technicians to be familiar with the concept of Per Unit as it is being used and referred to every day in power flow, short circuit evaluation, and motor starting studies.

An understanding of this method is essential for the understanding of fault analysis and modern-day protection schemes. These courses will provide you with the knowledge to comprehend the concept and how it is applied.

Supplemental Electrical Lessons

Specialized Electrical Lessons

Specialized lessons include the “Protection & Control(P & C)” principles of high voltage stations. HV Bus Differential Protection is studied along with restrictions due to CT saturation & mismatch and its solution, “Restraint Differential Protection”.

Transformer Connections: (Y – Y; Delta – Delta; Y – Delta; Delta – Y & Y – Zag Zig) are examined along with Transformer Clock System Vector Nomenclature.

Lastly, there is a special section dedicated to “Single and Three-Phase Metering“, including old analog and new digital kilowatt-hour meters.

Conclusion

Similarly we can find the WB phase to phase voltage…

…and the BR phase voltage.

Next on the list is Anker… their range of products are similar but they also cater to the smaller output devices that are very portable. Again you can take advantage of some small sales by going to this WEB address…https://shrsl.com/4nisu

My free “electrical crib sheets”…https://bit.ly/3VJle8z

See the full range of ANKER products…https://bit.ly/3YFQpmO

Directly access my Stan Store courses…https://stan.store/GVB

PSPT Electrical Power Systems Training by PSPT Power Systems Protection Training

Get ready for a wealth of information, engaging content, and an enhanced learning experience as we continue to grow and share valuable insights.

Stay connected, stay curious, and explore the possibilities!

“A Per-Unit System ” is the expression of system quantities as fractions of a defined base unit quantity. Calculations are simplified because quantities expressed as per unit do not change when they are referred from one side of a transformer to the other.

Lastly, there is a special section dedicated to “Single and Three-Phase Metering “, including old analog and new digital kilowatt-hour meters.