AC Theory: How to Construct a Power Triangle and the Different Powers in an AC Circuit

In this video we continue to build up our understanding of AC Theory and in particular true power, reactive power and apparent power. We learn definitions of these powers and how they relate to each other. Pythagoras' Theorem again comes into play and we are one step closer to understanding power factor.

[no_short_circuit]

Thanks Joe. I've looked at Power Factor before (including the beer analogy!) and as an amateur never really understood it. The way you've built on the theory of AC over these videos and especially the mathematical approach (something I am good at!!) has helped to make sense of these difficult concepts.

[cattmaston]

These videos have been brilliant during lockdown, while we’ve been unable to attend classes or do any practical.

[blagityourselfguy]

You explain in a very good way thanks!

[sasir]

Hello joe Robinson sir, I am following your ac theory and 3phase circuits, vedios they are amazingly amazing. I am an active subscriber and follow your vedios regularly, sir can you please explain what is average value and rms value. I am super curious to learn. Thank you

[knowledgegod]

Do you have any questions regarding transformers? Step up, step down? Delta, star, balanced, unbalanced,

[Patrick-kickass]

Wow, Im very enlightened by your video! Now I understand impedance!

[ravindulakshan]

Thank you very much sir..Great explain.. I'm From sri lanka

[tomas_soeterik]

Please answer fast: Is theta the same from the impoedance trangle to the power triangle?, thanks !

[beardedsparks]

Brian Scaddan won't be very happy with your poo pooing of his beer analogy 😆

[cprfenom]

Do you still do classes that would cover this as an adult learner?

[michaelmorrison]

The power company does not charge residential customers for apparent power .. industrial customers will get charged for a parent power and the poor power factor . Reactive power is not wasted power. It is necessary for certain types of loads. Other than that I guess you say Bob's your uncle