Тёмный

Introduction to 3 Phase AC Systems (Full Lecture) 

Jim Pytel
Подписаться 102 тыс.
Просмотров 67 тыс.
50% 1

In this lesson we'll examine 3 phase AC systems on an introductory level. We'll discuss the advantages of 3 phase AC, examine the generation process, look at both Y and delta configurations, and learn to calculate line to neutral and line to line voltage for different types of 3 phase AC systems. (Full Lecture)
___________________
If you wish to support this project please visit the Patreon page at: / bigbadtech
___________________
Copyright information: Use this lecture. Use it at home, at work, or at school. Put it in a playlist, embed it in a website, share it with your coworkers, family, friends, and enemies. I made this lecture and posted it on RU-vid so users everywhere have free access to this information.
This being said, this RU-vid channel is meant to be the sole point of distribution for this lecture. Users are not authorized to download it, change it, or charge for access. Don’t even think of downloading it and uploading to your own channel and pretending it’s your own work. Not cool. Use this lecture and let your friends know this free resource exists.
Use it. Don't steal it. Be cool.
__________________
For more FREE online technical training check out the following playlists available at the bigbadtech channel:
DC Circuit Analysis • DC Circuit Analysis
Single Phase AC Circuit Analysis • Single Phase AC Circui...
3 Phase AC Circuit Analysis • 3 Phase AC Circuit Ana...
Hydraulics • Hydraulics and Electri...
Motor Control • Motor Control
Motors and Generators • Motors and Generators
Motor Drives/Variable Frequency Drives (VFD) • Motor Drives
Programmable Logic Controllers (PLCs) • Programmable Logic Con...

Опубликовано:

 

9 сен 2024

Поделиться:

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист
Посмотреть позже
Комментарии : 71   
@LennoxOjore
@LennoxOjore 6 месяцев назад
Finally understood the concept, thank you 💯
@vasiqshair
@vasiqshair 5 лет назад
Great lecture! Provides good revision of undergrad EE curriculum.
@that1electrician
@that1electrician 6 лет назад
You deserve more subs brotha
@bigbadtech
@bigbadtech 6 лет назад
Tell your amigos!
@ericlarochelle6013
@ericlarochelle6013 5 лет назад
These videos are an amazing help. I am a Navy ET transitioning into the civilian job market and your videos help us brush up on the basics needed for job interviews as well as to learn more applicable knowledge for the civilian industrial work force. Keep these videos coming!!
@evanbrawner2414
@evanbrawner2414 2 года назад
3 years ago I transferred as an em. These videos saved me lol
@konturgestalter
@konturgestalter 4 года назад
Please continue making these lectures... it is the best i have seen so far in that field!!
@davidlee3908
@davidlee3908 4 года назад
So my so called" smart ass " apprentices (all 10 of them) like to show off as to how smart they are, until I play a couple of your videos at break or lunch. It's fun to watch them turn their video games, stop bragging about how drunk they were the night before, and pay 100% attention to your lectures. Good Job !!! I even get a refresher, and a headache, but the look on their faces is priceless 😳😳😳😳😳😳😳😳😳😳 😂🤣
@polarispolaris5077
@polarispolaris5077 4 года назад
You outweigh & topoff all my previous n " futur " professors ...All !! Keep Shining..sir
@nabeelest
@nabeelest 2 года назад
Bravo to you king! My mind is blown by the explaination..
@raszelast
@raszelast 3 года назад
Your surfing analogy for the potential difference between phases is really helpful. This makes it much easier to understand what this difference actually means.
@jkuebler89
@jkuebler89 5 лет назад
Pytels street cred just levelled up quoting Atmosphere. You a stand up guy for these vids.
@mechanically-seperated-chi7682
I appreciate you for making and uploading, going for my third year electrical. 🙏❤
@bigbadtech
@bigbadtech Год назад
Very nice, please tell your classmates (and instructor!) about these free resources!
@AJ-et3vf
@AJ-et3vf 2 года назад
Very great lecture sir! This has been very insightful for me the way you teach this subject. Thank you so much.
@nirmilasaleem2158
@nirmilasaleem2158 5 лет назад
YESSS .... ENGLISH
@VictorGomez-bx1yl
@VictorGomez-bx1yl 4 года назад
Excelente explicación. Gran trabajo
@bigbadtech
@bigbadtech 4 года назад
Gracias!
@hamidmoradian5907
@hamidmoradian5907 5 лет назад
You are the best! Thank you.
@sohailjanjua123
@sohailjanjua123 4 года назад
Hi Jim, I like your video
@simozy4475
@simozy4475 Год назад
Great explanation
@charlesdondieujnr8750
@charlesdondieujnr8750 2 года назад
great video, lost me at the math bit, but your explanation of the principles were solid.👍
@AJ-et3vf
@AJ-et3vf 2 года назад
awesome video sir! Thabk you!
@johncgibson4720
@johncgibson4720 3 месяца назад
I am trying to convert my drone's motor bought from DJI from delta configuration to y configuration to make it spin a quieter propeller at a slower speed and found your video very good for the basic concepts. But the drone motor has 14 magnets in 7 repelling pairs, and the 12 windings make counter polar forces in 6 pairs. I am failing my attempt. I used to rewind the entire motor myself that worked well. So, I maybe that is what I will do next.
@chiluchise652
@chiluchise652 5 лет назад
Huge help
@student6830
@student6830 4 года назад
You're great!
@jpf504
@jpf504 3 года назад
Very helpful, thank you.
@razanad3333
@razanad3333 3 года назад
thank you great leactre
@mrashad219
@mrashad219 Год назад
Thanks!
@bigbadtech
@bigbadtech Год назад
What?! Thanks for the very generous donation! More material coming your way! Releasing a bunch of new pneumatic material and working on some new motors and generators content.
@sangamsamdarshi4634
@sangamsamdarshi4634 2 года назад
Amazing
@kyrofromgahool2009
@kyrofromgahool2009 2 года назад
dank u wel voor een goed velkraringen)
@bigbadtech
@bigbadtech 2 года назад
graag gedaan!
@Sami00900
@Sami00900 4 года назад
Deserve to go viral
@bigbadtech
@bigbadtech 4 года назад
Spread it! Tell your friends.
@Sami00900
@Sami00900 4 года назад
@@bigbadtech One post to the Facebook 💥
@bigbadtech
@bigbadtech 4 года назад
No, please don't make me go there! Can you do it for me? I'm scared.
@Sami00900
@Sami00900 4 года назад
@@bigbadtech I'll do it leave it to me 👍
@Shiva68
@Shiva68 2 года назад
Thank you so much sir..
@jjpbjp
@jjpbjp 5 лет назад
at 28:50 how are you getting the line to line voltage/angle. I'm not seeing how substituting the given values for L1 and L2 get you to 380v @degrees. I understand because of the explanation before this, however im not seeing the shortcut to getting the line to line voltage. Thank you for an explanation you can give!
@bigbadtech
@bigbadtech 5 лет назад
Line to line is the difference between the two line voltages. L1 minus L2. Here's are the lectures that explains the math: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-deZ8FCZ3iqY.html
@bradleywillis1654
@bradleywillis1654 Год назад
Your LL KoolTeq analogy reminds me of an ex girlfriend. She had me close but then moved on to something else and I lost it completely.. then after feeling like a 1 leg cat tryna bury a turd on a frozen pond, at 40:45 I found myself back in familiar territory. Where many people may be ok without understanding how this all works, as long as it does work, I am not one of those people
@bigbadtech
@bigbadtech Год назад
Stick with it man. Like ex-girlfriends there is some admittedly rough times you gotta go through (ie: the complex math playlist ru-vid.com/group/PLdnqjKaksr8o08K4VY02fVXQijxT1yDTI) but it's all easy* after that. * not really. It's still hard but it's worth it.
@samalfellah2066
@samalfellah2066 Год назад
Listen to Jim and you will be fine , if you had a problem then you not tracking 😁
@bradleywillis1654
@bradleywillis1654 Год назад
Work is being done on both sides of the axis? The further each wave is from zero, the more capacity it has for doing work?
@bigbadtech
@bigbadtech Год назад
True dat. + voltage times + current yields + power as does - voltage and - current yields + power. Instantaneous power does depend not only upon the magnitude of voltage and current (ie: distance from axis) but also the phase shift between them. Check out the AC Power lecture at: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nse2vSlOoME.html
@hekk_tech5975
@hekk_tech5975 4 года назад
Thank you Jim for all the videos again and again. I have a question do you plan to make RC, RL Circuits or first/second differential circuits analysis?
@bigbadtech
@bigbadtech 4 года назад
Definite "no" on the differentials. I teach for a program that uses algebraic (ie: non-calculus) methods. I've done both methods before and I honestly prefer the algebraic methods although they do have their limits. I do have some RC and RL transient DC response lectures towards the end of the " DC Circuit Analysis" playlist: ru-vid.com/group/PLdnqjKaksr8qQ9w3XY5zFXQ2H-zXQFMlI and I do have RC filter circuits towards the end of the "Single Phase AC Circuit Analysis" playlist: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-flRocvQxQw4.html
@1722mayur
@1722mayur 2 года назад
I request you to make a course on Electric power system.
@bigbadtech
@bigbadtech 2 года назад
Stay in touch. More material coming your way soon.
@bradleywillis1654
@bradleywillis1654 Год назад
Given this is based on time taken for current to travel, why don’t we take concern for the length of our conductors in the industry? Seems like our conductor lengths would need to be exactly the same in order to benefit from 3 phase.. any thoughts would be appreciated, and please keep in mind I’m kinda new to quantum physics, and also aware of the fact it’s not a new concept. I’m just really stupid and need help from you smart people. Thanks for your patience.
@bigbadtech
@bigbadtech Год назад
You'd definitely be dealing with the quantum realm if you're talking about speed of electricity. For the intents and purposes of this lecture series one can assume it's quasi-instantaneous. Often times applications necessitate matching lengths of wires not because of the time issue but rather matching the impedance (ie: resistance) for each leg.
@albanianmmafighter782
@albanianmmafighter782 8 месяцев назад
hi jim, i recently saw a video of yours and you said you worked in the semiconductor industry before. i know its just one google click away but mind if you tell us what kind of jobs can we look for with a BS in EE?
@bigbadtech
@bigbadtech 8 месяцев назад
EE careers are numerous: manufacturing, design, energy, information, transportation. Very good field because if something starts to bore you there's plenty of other options.
@beznerwow1948
@beznerwow1948 5 лет назад
43:00 Im a little confused here - you were talking about sources and then you are talking about windings. Can sb sum up sth for me? Delta for sources : line to line voltage = phase voltage Delta for windings : line to line voltage = phase*sqrt(3) voltage ??
@bigbadtech
@bigbadtech 5 лет назад
There's a lot of confusing terms associated with 3 phase AC. That's why I commonly restrict myself to the terms "line to neutral" and "line to line". Here the three windings on a 3 phase AC generator could be viewed as 3 independent sources with a relative phase shift of 120 between each other. How those sources/windings are hooked up presents us with two different scenarios: a delta configuration or a Y configuration. A delta configuration results in a line to line differential equal to the differential across each source. A y configuration results in a line to neutral differential equal to the differential across each source and a line to line differential equal to sqrt(3)*differential across each source.
@IceyJunior
@IceyJunior 5 лет назад
Is there difference between Wye-Wye Delta-Delta Wye-Delta and Delta-Wye? What's the similarities between them? I'm still confuse
@bigbadtech
@bigbadtech 5 лет назад
3 phase AC circuit analysis isn't something that's immediately understandable. It takes time and practice. Luckily, I've got a whole playlist detailing these differences: ru-vid.com/group/PLdnqjKaksr8qzoIGCYx2rhVK51ZPjXkRO
@akdiscreto
@akdiscreto Год назад
Precisely,Line to Line is 381/_30,why do all use 380 instead:)?
@bigbadtech
@bigbadtech Год назад
Or ... is LL exactly 380 and LN to precisely 219.393....? The world may never know.
@akdiscreto
@akdiscreto Год назад
@@bigbadtech Definitely maybe 🤔
@miceskin
@miceskin Год назад
I tried to follow this but my attention span fell at an angle of 120 degrees
@kevinfranzka1151
@kevinfranzka1151 4 года назад
This doesn’t help me put it into my circuits tho.
@sln7736
@sln7736 5 лет назад
which book you use?
@bigbadtech
@bigbadtech 5 лет назад
No book. The electronics series is taught entirely using these online lectures. Stay in touch because I'm consolidating all the study notes this year and releasing them as an online book this summer.
@ryanredmon6466
@ryanredmon6466 5 лет назад
I saw another video (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4oRT7PoXSS0.html) that suggests the strongest magnetic field, and therefore the strongest current, is seen when the magnet is perpendicular with the coil as opposed to parallel as shown in your video. Which representation is correct? Based on my understanding of magnetic fields, I would think the other video is more accurate, but I don't know enough to definitively prove that. Could you provide some insight, please?
@bigbadtech
@bigbadtech 5 лет назад
The orientation of the windings axis, either radially or axially aligned with the rotor, and the direction of the winding wrap also dictate how the winding interacts with the rotor magnetic field so, depending upon construction, you could peak at different rotor angles and polarities. Because my graphics often have the production quality of a 1980s Bananarama video I have to throw in the legal disclaimer "... assume the windings are wound in such a manner ..." Regardless of winding orientation, the 3 phase AC output will still be phase shifted 120 from each other because of the 120 physical offset of the windings.
@ryanredmon6466
@ryanredmon6466 5 лет назад
@@bigbadtech Gotcha. Thanks for the response
@testplmnb
@testplmnb 4 года назад
Why counter clock wise? Because it's american thing to do everything opposite than anyone else.
@bigbadtech
@bigbadtech 4 года назад
That's actually a Prussian artifact courtesy of Charles Proteus Steinmetz.