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Commenting because I know the work you had to put in to give viewers a clear perspective and understanding of the machine.. Great work bud..Keep it the awesome content
Man, I have been an industrial mechanic for 20 plus years. My weak spot has always been electrical. I have understood the basics for a very long time, but when I have tried to further my understanding, books just haven't done the trick in my simple little mind. Your series on electricity is absolutely amazing. In just a few short hours I have gained a better understanding of the concepts that the books just can't teach me and definitely don't show. The animations you use are the difference and will be the difference in why these facts will remain a permanent fixture in my memory banks for the rest of my life. I don't even know how to say thank you enough. THANK YOU!!!!
tungspeeker9660 Can't say I blame you. I maybe be going into robotics, but my main discipline (major) is mechanical engineering in part for this reason.😂
Hey man i’m currently in school for industry maintenance at the moment. Struggling to understand this stuff, is there any advice you can pass down to me?
@@connerlott Sure. Not sure exactly what you're having trouble with, but for me, it's usually easier to grasp a concept if I was hands on with it. If I didn't have the chance to go hands on, I always looks for something like the animations this guy offers. Easier for me if I can see how it does what it does, as it's doing it. Hands on is the best way to learn
I'm an electrician by trade and this series hammered home a lot of concepts I had been improperly taught. I was just telling my buddy the same thing about how the dissection and animations are priceless
Man I wish this was around when I first started working in manufacturing! It answers SO many questions. Anyone working with equipment would benefit from it. Very well done!
Also... people use the paddle to row or paddle. Old technology. Most people dont reallt know how it works. They feel the force on the paddle, and push the water... i mean when using it, you start to feel how to utilize the physics. To explain it, is much harder. Even today, they dont really know what magnetism is. And then you have aerodynamics... Its all about trying, and explain it after.
Nicola tesla did not invent this, he improved on it, there were already electric motor on his day and DC motors were more prevalent however inductions motors not widely used they had been already invented. Tesla under Edison fixed many problems he had with DC motors but Tesla had a better theory on how to conduct electricity better with AC with inductions motors but Edison would have none of it. Then Westinghouse hired tesla bought his patents and other patents before Tesla and had Tesla work on his ideas. Then Tesla improved and modernized the induction motor in other word he made them practical with the aid of Westinghouse backing and the patents he bought. But Tesla did not invented
Ugh. I cannot get over the fact that after a three year program to acquire my CET, your videos explain these processes, especially with the animated representations, than any of my professors ever could. WHERE WERE THESE IN 2013?!
I was a biology major in college and never thought I’d be able to wrap my head around engineering topics, but you’ve nailed it. Unbelievable stuff. Thanks for much for explaining! Keep coming out with amazing content; I will eat it up
Dude, I agree!!! My professor for Electric Motors was horrible! Worst professor ever but this was clear and cut learning learned in 15 minutes than a full semester of online class due to pandemic.
@@joaquinvargas6711 well, as the saying goes, a picture is worth a thousand words. A video will be worth much much more. Furthermore I suppose your professor only gives out slides full of text ? 😴
I've got to say. Long time viewer and I always love how break things down and show the engineering and scientific principles of the kit and tools we use on the day to day. I'm not an engineer by trade but Ive had to work engineering management where knowledge of the principles which my hardware operated were essential. Your videos have helped me understand things which fell on deaf ears in grade school. Thank you!
@@EngineeringMindset Sir please make videos on further applications of electromagnetic induction.. I would like to say something that you make video on the construction and working of Electromagnetic brakes and Electromagnetic cranes.
Like everyone else said, I wish we had these back in school. But I'm glad this is here now. Your explanation of the delta and wye connections just clarified so much. I've always felt a little blind, when disconnecting/connecting motors, without fully understanding why the wires are the way they are. Thank you!
I love these lectures... I worked on Fighter jets in the Navy...when I was in Navy Electronics school, the instructors were great like the guy on this video.
The way you speak, the intonation, the words u use, how all of those scenes in this video are so incredibly relaxing (doesn't look like so sophisticated with so many ornaments or whatever, yet it still covers it all), the way the animation moves, and everything in this video are so perfect. Thank u
This is an incredibly hard concept to explain and understand but you did an amazing job simplifying it. I really love your videos and what you do, thank you!
I work in ventilation and of course we have these motors in our air handling units. I didn't know how they really work but I've got at least a better understanding now. Thank you.
The Delta and Wye were so difficult for me to understand and this video makes so much sense on why we need the two configurations. And what an explanation of an electric motor. Please keep posting awesome content like this. So well made.
@@blackterminal if the motor design for delta connection for running full capacity yes delta connection would be better, if you using wye connection the motor can only run half of its capacity, and if the motor is designed for wye connection you can't use delta connection because the coils will be heat and burn unless you using stepdown transformers to reduce the voltage but you will not make the motor run stronger🤷, so it's not make a sense you wanna change the connection and using stepdown transformers, unless the wye connection designed motor using 3 phase 400v and you have 3 phase 230v, then you can change the connection from wye to delta. Hope this can help you
Being an eletrician student, I would say it is very informative plus the illustrations help get the idea how the works back and forth. Your videos has been very helpful in these parts few months!
Chartered professional electrical engineer here and this video popped up in my suggested. Knew all this motor theory anyway, but yes very well put together and clearly explained. Well done
I'm getting ready to refurbish several 3 phase motors. One of them is an Allis-Chalmers 25hp. It's a beast. It hasn't ran in 25+ years so I'm excited to see it spin again!.
How did the big motor refurbishment went? I have a motor of the same caliber waiting to be converted into permanent magnet generator for a wind turbine. Originally it was from a heavy duty belt conveyor. Collecting strong neodium magnets from hover boards for the rotor. The plan is to use lathe to remove enough material for the magnets to fit. This is all plans for now, not even sure the windings are okay. Been studying on the subject beforehand.
Brilliant explanation if star/delta configuration motors. Takes me back 30 years to my electrical apprenticeship. Now I need to remember which delivers more torque and the left and right hand rules. 😂
I know the comment section is littered either thank you's, but I'm throwing my hat in too. Thank you so much. These animations are near perfect and help immensely learn the concept behind the motors.
This is seriously a mind blowing video and explanation. The fact that you make such a difficult topic look so simple is a testimony to how special this is. The details are provided are excellent which many take for granted or have little knowledge about.
No doubt this is very beneficial for electrical engineering students but as I’m studying in French so I’ve some problems with translation but love this channel and huge respect for the team. Thanks for providing free education. ✊🏻
To think of it.... This is one example of how you fool the laws of physics to extract the required output for your convenience. Brilliant demonstrations and explanations. Thank you from a fellow Electrical Engineer.
These videos are fantastic review. Your talent is in explanation every bit as much as electrical theory. In fact, you are one of the best teachers I've had the pleasure of learning from. Thank you for this gift.
Now can you do a Single Phase or 2 Phase AC Induction motors? You know, the one with starting and running capacitors. That's what usually used by people anyways because households don't usually have 3 phases. Thanks!..More power to the Channel.!!
College won’t teach you the practicality or a thorough understanding of any applications for the topics they teach you. That is a huge problem I had with college is they’ll teach you the theoretical concepts buts for me that more difficult to understand since I couldn’t apply to anything real. Such as a motor for current, voltage, resistance. or a water pump for bernoullis principle.
14:45 you said 20A instead of 20 Ohms but it's okay cause the animation is correct. this explains is uper well and I appreciate your time and effort! 👍
Highly thankful for your grade video as a level 2 student this was so much easier to understand 😅was on my nerves for my practical test but now I am ready 😅love❤this video.
Very well done and I understood all of it. AC motors really need to be takin out of production as they are really horribly inefficient in conversion from electrical to mechanical. The ONLY reason they are still used is because the grid is AC and they are essentially plug and play and not based upon efficiency. AC should be used to get power to the building then rectified to DC for efficiency. Get induction out of an environment and watch efficiency quadruple. The foundation I stand on is if you have a permanent magnet in your rotor you don't need high current to be able to induce a magnetic field in the rotor as it's already there, therefore you're producing the same torque levels with less current. Wonder how many who read this comment and will understand what I'm talking about and how many will bash the point I'm trying to get across. The efficiency levels I'm talking about would be unheard of. Say 50HP on 2kw. Yes... That's pretty darn efficient lol. This is my point. The possibility is there....
Question from an electrician always wanting to know more! In what scenario would you need to run a neutral for a star configured motor? Why would you need it if the current returns to the source on the other phases? Also, I never quite understood why connecting the phases together in the terminal block wouldnt cause an explosion like if you straight up made a phase to phase connection on the line side of the motor. Thanks in advance, love watching these videos!
Under normal circumstances the neutral current is zero. If the neutral current is not zero it can be used to indicate a fault in the stator windings such as higher or lower resistance. Checking for a current in a single wire is cheaper than checking for current in three supply wires and then needing to compare each supply wire current against the other two. This method is used for both the generator where a neutral to earth (ground) resistor, referred to as an NER, has the voltage across it constantly measured. A rise in voltage across the NER shows a fault. The fault may not be in the local machine but can be in the supply side of the cabling or loads on the system. The risk to the large and expensive machines that have the NER connected from an unequal load is quite high so any NER current flow means these large machines need disconnecting due to the detected fault. Regarding the linking of the phases in the terminal block, the phases are not linked on the supply side, only at the star point on the other side of the block. The phases are a load that limits the current and the supply cables are only linked through these loads.
One of my subjects during my studies was electrical devices. It was 20 years ago. What can i say, im Polish and understood IT better after your film ten listening to profesor or while reading books.
I can’t thank you enough for your videos. Please, is there a way to prevent an induction motor being melted due to becoming too hot or being short circuited?
Thank you for your dedication to teach us electrical lessons in a simple way. But I can't get your videos on how transformers work. Please share me the link of the video or create a video on construction of transformers (if you have not created yet). All other things are fine.👍
Basically there are two parts: Stator and Rotor: Stator has windings: which 1. induce a current in the rotor 2. The windings change polarity, changing the directorion and polarity of the electricity induced in the rotor. Rotor: 2 things: 1. Get induced electricity: 2. Moves, as the induced electricyty creates a magnetic field: This magnetic filed induced in the rotor is pushed by the polarity of the stators windings(current) polarity
thank you foe mentioning the enameled cupper wires no talks about it and it drove me crazy because i just could not understand how is it possible for the coils to touch each others with frying themselves really apricate you for that
Im just a year 12 physics student. Aced my last test thought i was smart so i decided to click on this video and it makes sure to keep my ego in check. I love it though.
Don't worry, no one was born knowing anything. Knowledge is something we acquire over time with effort. You're exploring beyond your current understanding, and that's a fantastic mindset to have and the only way to acquire knowledge. Keep going. If it's something that interests you then take a break, let your mind process whats been said, rewatch it and make notes of anything you didn't fully understand and then lookup that part aftwards until it all makes sense. Break everything down into bite sized chucks and you can solve anything.
Have you done a video on whether or not dc transformers work??? I've got a theory, but I want to hear your, or see your explanation... visuals always make things better... I enjoy your videos... THANKS
Just want to say thanks for the great channel. It is a great resource and every video is so visual and full of information. Cool to see that the UK is getting some coverage. Animations of this quality take a lot of work and knowledge of multiple design tools. Awesome job!
2:50 Of course it is not possible to have a magnetic field without an electric field but in a motor we just say rotating magnetic field not electromagnetic field. Good video.
Good day Sir.. I want to ask why the overhead crane travel motor is to much hot.. What is the main problem.... Thank you and more videos.. God bless your Chanel..
This may be off topic, but I think someone might find it interesting. :) Device to end the creation of Nuclear waist. Electric Generator Design that's powered by it's self & perpetuates more electrical current then is needed for it to run continuously on it's own. Step 1: calculate how much energy you need pumped into an electric motor to make a vertically positioned circular platter with magnets in-bedded horizontally around it's left side and right side (so there pushing force is pushing out sideways relative to the vertically spinning disc) to spin as fast as you need it to. Also better to make sure these magnets are shielded around their sides & back with metal that has high permeability so the magnetic field they are emitting is focused fully out sideways. :D Step 2: Calculate how many sets of copper coils you need to be interacting with magnetic fields to achieve this & to perpetuate more electrical current flow then is needed. :D Step 3: Build a round horizontally positioned platter covered in all these copper coils pointed down that does not move (Is stationary) :D Step 4: build a round platter covered in powerful magnets pointed up that can spin and place it directly under platter with hanging copper coils. :D Step 5: Position the vertical platter that is motorized close to the horizontally positioned platter covered in magnets pointing up so that when the vertically positioned platter spins the in-bedded horizontally positioned magnetic fields slam sideways against the edge of the horizontally positioned platter causing it to spin. :) Step 6: Make sure enough of the copper coils are feeding their electrical current into the electric motor and the rest of the copper coils are linked into a set of rechargeable Battery's placed in the closest most convenient spot. Step 7: Build a duplicate setup of horizontally positioned discs with hanging copper coils and disc with upwards facing magnets and assuming the first set of discs are positioned to the front left side of vertical spinning disc, position the other duplicate structures to the front right, the back left and the back right of the vertically positioned motorized disc. As the vertically positioned motorized disc spins the horizontally in-beaded magnets will now hit into all 4 horizontally positioned discs causing them to spin. so you will effectively be using the spin of one disc powered by one electric motor to spin 4 constructs that are each generating electrical current. now build this whole setup multiple times over and use the current perpetuated by it to power up scaled electromagnetic generators that are equal to or more powerful than the ones used in a nuclear power plant. You will now have a device that is self perpetuating off of it's own electrical current perpetuation and no nuclear waist to worry about.
Great video! Please know that lines of force do not rotate (they do not move) they only point in a certain direction. N to S Lines of force only move if they interact with other nearby lines of force.
You guys do such a good job with these videos. I wish we had stuff like this back in my electrical trade theory courses. We spent way too many hours in lectures to learn this. Way cool.
Copper is conductive, I think it’s magnetic wire with a non conductive layer that just so happens to be the copper color. It has to be magnetic so three phases can make a magnetic line of flux to push the rotor in the right direction at the right torque, rpm etc… could be wrong but I was taught this. Like I said think about how a conductive wire would affect that field. Great video though, really help me a lot and FAST! Thanks
Good morning sir I had come to know and build the theory of SCIG( squirrel cage induction generator) Plz correct me if I am wrong and I would be "gladfull" full if u make corrections in this When we connect the SCIG with 3 ph supply to stator and the rotor is coupled to a prime mover The mg field is being produced in the stator and induced in rotor and now the rotor has its mg field the rotor is rotated above the synchronous speed i.e -ve slip Now the stator will be starting to provide supply to the grid And through the process of induction the mg filed is countinue to produce in rotor By the help of stator which it's providind supply to grid Since mg field is producing in stator and induced in rotor And the direction of mg field is reverse and the rotir directoin is reversed when compared to motor ( SCIM)
Great information. Connecting the terminal box on top of indication motor. Either star or delta. Absolutely fantastic information. Star uses less current.
Help me out here Paul, i have a 6 lead motor where the leads are totally unidentified. I’ve found which sets of wires are the windings with my ohmmeter. That’s the easy part. The problem is that I don’t know what side of the windings are 1 or 2. Does that actually matter? Is there a way to test them to find out? I love your videos! They help me tremendously! Thanks!
The Engineering Mindset this is very helpful. Thank you. And again, thank you so much for your videos. I’m a visual learner, so your animations are very helpful. I’ve become a far better electrician with a better understanding of things. So thanks!!!!!
Great video information 👍, PLEASE make a video tutorial for Calculating Feeder line conductor, OCPD, size of contactor and thermal overload relay plus trip setting calculation🙏👍
Less voltage and less current means less power. It does not determine efficiency. Efficiency is the ratio of power in to power out. You may find efficiency drops if you change a motor from delta to star as the motor may struggle due to being under powered. Delta or star is used to match the motor coils to the supplied voltage. In the examples given in the video the coils are matched to 230 volts. When in delta the 230 volt line voltage is applied directly to the coils. When in star the coils are connected in a 120° phasing to 400 volts line to line voltage but each coil is still only getting 230 volts across it. This is because if you do the vectors as an isosceles triangle with one angle of 120° and the 2 equal sides of length 230mm the third side will be close to 400mm long (398.37mm) and the trigonometry will show that the sides are in the ratio of 1 : sqrt(3). If you have a 400 volt star motor left in this configuration but connected to a 230 line to line 3 phase supply then the voltage across each coil will now be close to 133 volts as the same ratio still applies (it is also 398.37/3). Where all this is important is when using a VFD (variable frequency drive) to convert single phase to 3 phase supplies. The most common (and cheaper as a result) VFD will take 230V single phase and turn it into 230V 3 phase. It is common to get a motor designed to run on 400V line to line 3 phase in star configuration and change it to delta to run it on a 230V single phase to 230V line to line 3 phase supply from a VFD. Note these numbers are based on 230V being the actual voltage but the system could be based on 400V being the actual voltage and 230V being the approximate number. This does not matter as it may vary in reality between an upper and lower acceptable value at a much higher voltage at the point of generation.
@@Teknopottu Large generators use a neutral earth/ground resistor for fault detection. This needs a star point to connect it to so delta is not used. Motors do not make good generators as alternators generally have a wound rotor with control circuits to control the rotor current. This controlled current then maintains the generated voltage to the required tolerances.
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@@blitzblutz no hi no only
Commenting because I know the work you had to put in to give viewers a clear perspective and understanding of the machine.. Great work bud..Keep it the awesome content
‰#@@topthapa7195 ĺ
Plz make videos on tower crane crt speed control by vfd and by resistance connect to the shaft
B byg ĺl
Man, I have been an industrial mechanic for 20 plus years. My weak spot has always been electrical. I have understood the basics for a very long time, but when I have tried to further my understanding, books just haven't done the trick in my simple little mind. Your series on electricity is absolutely amazing. In just a few short hours I have gained a better understanding of the concepts that the books just can't teach me and definitely don't show. The animations you use are the difference and will be the difference in why these facts will remain a permanent fixture in my memory banks for the rest of my life. I don't even know how to say thank you enough. THANK YOU!!!!
tungspeeker9660
Can't say I blame you. I maybe be going into robotics, but my main discipline (major) is mechanical engineering in part for this reason.😂
Hey man i’m currently in school for industry maintenance at the moment. Struggling to understand this stuff, is there any advice you can pass down to me?
@@connerlott Sure. Not sure exactly what you're having trouble with, but for me, it's usually easier to grasp a concept if I was hands on with it. If I didn't have the chance to go hands on, I always looks for something like the animations this guy offers. Easier for me if I can see how it does what it does, as it's doing it. Hands on is the best way to learn
I am in the same boat !! The electrical portion has always been a struggle for me but when I see these video, everything comes in full circle.
I'm an electrician by trade and this series hammered home a lot of concepts I had been improperly taught. I was just telling my buddy the same thing about how the dissection and animations are priceless
Man I wish this was around when I first started working in manufacturing! It answers SO many questions. Anyone working with equipment would benefit from it. Very well done!
I just learned about 3 Phase motors in my 3rd year electrical course. I wish I watched this channel then as this is so well done.
@@Tre16 1qqqqq
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Agreed completely! I've been in the industrial service business for years, and don't ever remember classes being so easy to follow.
I'm currently 3rd year, next chapter is motors and just 💯💯💯 what you said. I can't see anyone explaining it better
The Genius of Nikola Tesla. How did he imagine this in his head and constructed it when I even with this great animation hardly can understand it.
His brain was thinking in 5D, we are thinking in 3D.
Helps that he had an IQ of 240 minimum!
Also... people use the paddle to row or paddle. Old technology. Most people dont reallt know how it works. They feel the force on the paddle, and push the water... i mean when using it, you start to feel how to utilize the physics. To explain it, is much harder.
Even today, they dont really know what magnetism is.
And then you have aerodynamics...
Its all about trying, and explain it after.
Nicola tesla did not invent this, he improved on it, there were already electric motor on his day and DC motors were more prevalent however inductions motors not widely used they had been already invented. Tesla under Edison fixed many problems he had with DC motors but Tesla had a better theory on how to conduct electricity better with AC with inductions motors but Edison would have none of it. Then Westinghouse hired tesla bought his patents and other patents before Tesla and had Tesla work on his ideas. Then Tesla improved and modernized the induction motor in other word he made them practical with the aid of Westinghouse backing and the patents he bought. But Tesla did not invented
@@jhonnycaicedo5647 this motor Is originaly Tesla invetion
Ugh. I cannot get over the fact that after a three year program to acquire my CET, your videos explain these processes, especially with the animated representations, than any of my professors ever could. WHERE WERE THESE IN 2013?!
haha same here... todays generation is so lucky even in next 5-10 years with AR/VR people will virtually build and learn concepts..
@@_thehunter_ Amazing!
I graduated last year and never managed to understand this or transformers untill i saw these videos
As an electrical engineer I have to say this is the best explanation I have seen on this, absolutely brilliant 👍
As an African American, I approve this message
@@TillURide420 😂 😂 lol
I was a biology major in college and never thought I’d be able to wrap my head around engineering topics, but you’ve nailed it. Unbelievable stuff. Thanks for much for explaining! Keep coming out with amazing content; I will eat it up
You explained this so much faster and better than my teacher, seriously grateful for these videos.
I can only quote your message friend
Dude, I agree!!! My professor for Electric Motors was horrible! Worst professor ever but this was clear and cut learning learned in 15 minutes than a full semester of online class due to pandemic.
and imaginining it with a 3D video to understand helps a lot
@@joaquinvargas6711 well, as the saying goes, a picture is worth a thousand words. A video will be worth much much more. Furthermore I suppose your professor only gives out slides full of text ? 😴
yup
I've got to say. Long time viewer and I always love how break things down and show the engineering and scientific principles of the kit and tools we use on the day to day. I'm not an engineer by trade but Ive had to work engineering management where knowledge of the principles which my hardware operated were essential. Your videos have helped me understand things which fell on deaf ears in grade school. Thank you!
Gald it's been helpful
@@EngineeringMindset Sir please make videos on further applications of electromagnetic induction..
I would like to say something that you make video on the construction and working of Electromagnetic brakes and Electromagnetic cranes.
Like everyone else said, I wish we had these back in school. But I'm glad this is here now.
Your explanation of the delta and wye connections just clarified so much. I've always felt a little blind, when disconnecting/connecting motors, without fully understanding why the wires are the way they are.
Thank you!
You succeeded at least 3 things at once. Best description, best knowledge, best animation work. Thank you.
Glad you think so!
I love these lectures...
I worked on Fighter jets in the Navy...when I was in Navy Electronics school, the instructors were great like the guy on this video.
Navy electronics school?. How can I get more info about it?
The way you speak, the intonation, the words u use, how all of those scenes in this video are so incredibly relaxing (doesn't look like so sophisticated with so many ornaments or whatever, yet it still covers it all), the way the animation moves, and everything in this video are so perfect. Thank u
This is an incredibly hard concept to explain and understand but you did an amazing job simplifying it. I really love your videos and what you do, thank you!
Yes thanks guys. Great job
This one video clearly explained what countless text books could not. I could literally cry. Thank you 🤧
I work in ventilation and of course we have these motors in our air handling units. I didn't know how they really work but I've got at least a better understanding now. Thank you.
The Delta and Wye were so difficult for me to understand and this video makes so much sense on why we need the two configurations. And what an explanation of an electric motor. Please keep posting awesome content like this. So well made.
Delta would seem to be better?
@@blackterminal if the motor design for delta connection for running full capacity yes delta connection would be better, if you using wye connection the motor can only run half of its capacity, and if the motor is designed for wye connection you can't use delta connection because the coils will be heat and burn unless you using stepdown transformers to reduce the voltage but you will not make the motor run stronger🤷, so it's not make a sense you wanna change the connection and using stepdown transformers, unless the wye connection designed motor using 3 phase 400v and you have 3 phase 230v, then you can change the connection from wye to delta. Hope this can help you
Most of the times I try not to skip Advertisements in between video, Because you guys deserve it.
Being an eletrician student, I would say it is very informative plus the illustrations help get the idea how the works back and forth. Your videos has been very helpful in these parts few months!
The best video I have seen on the subject. No fluff, no confusion. Focused, to the point, clear. Thank you.
This is THE best video ever produced to explain the induction motor so clearly.
True
I always struggled with certain aspects of the electrical wizarding world, but thanks to your videos, I now have a much clearer understanding
Chartered professional electrical engineer here and this video popped up in my suggested. Knew all this motor theory anyway, but yes very well put together and clearly explained. Well done
L3 apprentice here & you just explained that better than my teacher. Thank you, once I pass I will get you a brew!
Thanks so much the engineering mindset.. For the first time in my life I've understood what is meant by Delta and star connections
Being an Electrical Engineering student, this is the best ever video that I have watched. Brilliant 👍🏻👍🏻
I'm getting ready to refurbish several 3 phase motors. One of them is an Allis-Chalmers 25hp. It's a beast. It hasn't ran in 25+ years so I'm excited to see it spin again!.
How did the big motor refurbishment went? I have a motor of the same caliber waiting to be converted into permanent magnet generator for a wind turbine. Originally it was from a heavy duty belt conveyor. Collecting strong neodium magnets from hover boards for the rotor. The plan is to use lathe to remove enough material for the magnets to fit.
This is all plans for now, not even sure the windings are okay. Been studying on the subject beforehand.
Seen our new - How wind turbines work video? link: ruclips.net/video/Hf875eOVrVI/видео.html
Brilliant explanation if star/delta configuration motors. Takes me back 30 years to my electrical apprenticeship. Now I need to remember which delivers more torque and the left and right hand rules. 😂
We should project these kinds of videos in the college classes via projector!!!
Will make the professors be unemployed at the end...
I know the comment section is littered either thank you's, but I'm throwing my hat in too.
Thank you so much.
These animations are near perfect and help immensely learn the concept behind the motors.
I have to be honest, this is the most detailed explanation i have ever seen on youtube. I can truly say that i became an expert in 15 minutes!
This is seriously a mind blowing video and explanation. The fact that you make such a difficult topic look so simple is a testimony to how special this is. The details are provided are excellent which many take for granted or have little knowledge about.
No doubt this is very beneficial for electrical engineering students but as I’m studying in French so I’ve some problems with translation but love this channel and huge respect for the team. Thanks for providing free education. ✊🏻
We do have a frnech channel too, even Spanish and hindi. See our channel for links
You've made electrical motors look so simple ....thank you very much keep the good work up
To think of it.... This is one example of how you fool the laws of physics to extract the required output for your convenience.
Brilliant demonstrations and explanations.
Thank you from a fellow Electrical Engineer.
I work with this stuff every day but I actually learned something.
At 12:15, the side diagram where you have the delta connection, makes it very easy to understand! Thank you so much!
this is by far the best most intuitive explanation of all things engineering. Thank you Paul!
These videos are fantastic review. Your talent is in explanation every bit as much as electrical theory. In fact, you are one of the best teachers I've had the pleasure of learning from. Thank you for this gift.
Now can you do a Single Phase or 2 Phase AC Induction motors? You know, the one with starting and running capacitors. That's what usually used by people anyways because households don't usually have 3 phases. Thanks!..More power to the Channel.!!
Getting into the HVAC field and so grateful to have these videos for reference. Keep up the great work!
If this video was released on 2018 I'd have performed well on my Electrical Machines exam
When you realize that a 15min video thought you more than a 4 year college...
College won’t teach you the practicality or a thorough understanding of any applications for the topics they teach you. That is a huge problem I had with college is they’ll teach you the theoretical concepts buts for me that more difficult to understand since I couldn’t apply to anything real. Such as a motor for current, voltage, resistance. or a water pump for bernoullis principle.
I took electricity and magnetism in college and can confirm this is true.
Bro this is helping me understand it so much better! I haven’t fully understood it in class and so this video helped!
14:45 you said 20A instead of 20 Ohms but it's okay cause the animation is correct. this explains is uper well and I appreciate your time and effort! 👍
Just one video clears most of the electronic doubts
Simply perfect explanation. Even my 10 yrs old daughter understands it.
Highly thankful for your grade video as a level 2 student this was so much easier to understand 😅was on my nerves for my practical test but now I am ready 😅love❤this video.
This RUclips account is so legit 🙌
Very well done and I understood all of it. AC motors really need to be takin out of production as they are really horribly inefficient in conversion from electrical to mechanical. The ONLY reason they are still used is because the grid is AC and they are essentially plug and play and not based upon efficiency. AC should be used to get power to the building then rectified to DC for efficiency. Get induction out of an environment and watch efficiency quadruple. The foundation I stand on is if you have a permanent magnet in your rotor you don't need high current to be able to induce a magnetic field in the rotor as it's already there, therefore you're producing the same torque levels with less current. Wonder how many who read this comment and will understand what I'm talking about and how many will bash the point I'm trying to get across. The efficiency levels I'm talking about would be unheard of. Say 50HP on 2kw. Yes... That's pretty darn efficient lol. This is my point. The possibility is there....
can you do a video that explains how wifi and the internet work?
That's not engineering, that's quantum physics
Digital signal processing and information system questions.
Thanks for the simple explanation! It really helps that you started from the basics!
Glad to hear that!
Nice video, I’ve got an single and three induction motor assessments in about an hour and this video helped solidify some information
Question from an electrician always wanting to know more! In what scenario would you need to run a neutral for a star configured motor? Why would you need it if the current returns to the source on the other phases? Also, I never quite understood why connecting the phases together in the terminal block wouldnt cause an explosion like if you straight up made a phase to phase connection on the line side of the motor. Thanks in advance, love watching these videos!
Under normal circumstances the neutral current is zero. If the neutral current is not zero it can be used to indicate a fault in the stator windings such as higher or lower resistance. Checking for a current in a single wire is cheaper than checking for current in three supply wires and then needing to compare each supply wire current against the other two. This method is used for both the generator where a neutral to earth (ground) resistor, referred to as an NER, has the voltage across it constantly measured. A rise in voltage across the NER shows a fault. The fault may not be in the local machine but can be in the supply side of the cabling or loads on the system. The risk to the large and expensive machines that have the NER connected from an unequal load is quite high so any NER current flow means these large machines need disconnecting due to the detected fault. Regarding the linking of the phases in the terminal block, the phases are not linked on the supply side, only at the star point on the other side of the block. The phases are a load that limits the current and the supply cables are only linked through these loads.
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As a BSME I am always looking for more knowledge of electrical engineering. Thanks.
More to come!
That fact that these are free to watch is just amazing. Very grateful for your videos!
this video has taught me more than I learned in class.....amazing
It's extraordinary that the discoveries of the past are very useful for future generations
I bought you a coffee.
By the way only to thank you for the video.
You are a great teacher.
Thank you! Very much appreciated and very glad to hear you're enjoying the content
@@EngineeringMindset Not surprised why you are so great.
Keep up the good work sir.
One of my subjects during my studies was electrical devices. It was 20 years ago. What can i say, im Polish and understood IT better after your film ten listening to profesor or while reading books.
dang. This video explains the whole course that I took at University.
You don’t get that diploma to hang on the wall watching this 😂
I can’t thank you enough for your videos. Please, is there a way to prevent an induction motor being melted due to becoming too hot or being short circuited?
You had generayed a better Pic in mind
It IS very helpful ❤❤
Finally, the best induction motor video animation with great explanation!👍🏼
Thank you for your dedication to teach us electrical lessons in a simple way. But I can't get your videos on how transformers work. Please share me the link of the video or create a video on construction of transformers (if you have not created yet). All other things are fine.👍
You're welcome. Just click on our channel name, click videos and type in transformers, it will appear.
Great explanation!!
I finished up my lvl3 electrical labs today!! Lol. A/C regenerative drives and A/C frequency drives
N= f(120)/poles lol
Thank you for sharing . B/c i am one of the student of industrial machine so your explaining very attractive .thank you again
Basically there are two parts:
Stator and Rotor:
Stator has windings: which 1. induce a current in the rotor
2. The windings change polarity, changing the directorion and polarity of the electricity induced in the rotor.
Rotor: 2 things:
1. Get induced electricity:
2. Moves, as the induced electricyty creates a magnetic field: This magnetic filed induced in the rotor is pushed by the polarity of the stators windings(current) polarity
thank you foe mentioning the enameled cupper wires no talks about it and it drove me crazy because i just could not understand how is it possible for the coils to touch each others with frying themselves really apricate you for that
Im just a year 12 physics student. Aced my last test thought i was smart so i decided to click on this video and it makes sure to keep my ego in check. I love it though.
Don't worry, no one was born knowing anything. Knowledge is something we acquire over time with effort. You're exploring beyond your current understanding, and that's a fantastic mindset to have and the only way to acquire knowledge. Keep going. If it's something that interests you then take a break, let your mind process whats been said, rewatch it and make notes of anything you didn't fully understand and then lookup that part aftwards until it all makes sense. Break everything down into bite sized chucks and you can solve anything.
Lol i'm a marine engineer and i still have to watch it on x0.5
Dear Teacher, you demonstrated it so well. Thanks and Regards...
Have you done a video on whether or not dc transformers work???
I've got a theory, but I want to hear your, or see your explanation... visuals always make things better... I enjoy your videos... THANKS
Thanks bro 👊
No problem 👍
Just want to say thanks for the great channel. It is a great resource and every video is so visual and full of information. Cool to see that the UK is getting some coverage. Animations of this quality take a lot of work and knowledge of multiple design tools. Awesome job!
Man, you make great videos!
Thanks Matthew
I agree...
Thank you so much for the video. Kindly make a video on transformer ASAP
This is what you call a Masters course!
This is well explained, something the professors and text books could not do efficiently. Semesters of lectors and so on.
thanks!
😀
hi,this sophe dai from China. nice to meet u!
Saw the video thrice but finally got it. Amazing video. Thanks!
One of the best tutorial I ever watched... !!! It makes things much easier for me.
2:50 Of course it is not possible to have a magnetic field without an electric field but in a motor we just say rotating magnetic field not electromagnetic field. Good video.
This is very good lecture for everyone Electrical individual
Good day Sir.. I want to ask why the overhead crane travel motor is to much hot.. What is the main problem.... Thank you and more videos.. God bless your Chanel..
Keep continue this kind of work.... "you will go higher". keep write down this sentence.
Great Lecture, engineeringmindset is a University of engineering on RUclips... Big kudos guys
This may be off topic, but I think someone might find it interesting. :)
Device to end the creation of Nuclear waist.
Electric Generator Design that's powered by it's self & perpetuates more electrical current then is needed for it to run continuously on it's own.
Step 1: calculate how much energy you need pumped into an electric motor to make a vertically positioned circular platter with magnets in-bedded horizontally around it's left side and right side (so there pushing force is pushing out sideways relative to the vertically spinning disc) to spin as fast as you need it to. Also better to make sure these magnets are shielded around their sides & back with metal that has high permeability so the magnetic field they are emitting is focused fully out sideways. :D Step 2: Calculate how many sets of copper coils you need to be interacting with magnetic fields to achieve this & to perpetuate more electrical current flow then is needed. :D Step 3: Build a round horizontally positioned platter covered in all these copper coils pointed down that does not move (Is stationary) :D Step 4: build a round platter covered in powerful magnets pointed up that can spin and place it directly under platter with hanging copper coils. :D Step 5: Position the vertical platter that is motorized close to the horizontally positioned platter covered in magnets pointing up so that when the vertically positioned platter spins the in-bedded horizontally positioned magnetic fields slam sideways against the edge of the horizontally positioned platter causing it to spin. :) Step 6: Make sure enough of the copper coils are feeding their electrical current into the electric motor and the rest of the copper coils are linked into a set of rechargeable Battery's placed in the closest most convenient spot. Step 7: Build a duplicate setup of horizontally positioned discs with hanging copper coils and disc with upwards facing magnets and assuming the first set of discs are positioned to the front left side of vertical spinning disc, position the other duplicate structures to the front right, the back left and the back right of the vertically positioned motorized disc. As the vertically positioned motorized disc spins the horizontally in-beaded magnets will now hit into all 4 horizontally positioned discs causing them to spin. so you will effectively be using the spin of one disc powered by one electric motor to spin 4 constructs that are each generating electrical current. now build this whole setup multiple times over and use the current perpetuated by it to power up scaled electromagnetic generators that are equal to or more powerful than the ones used in a nuclear power plant. You will now have a device that is self perpetuating off of it's own electrical current perpetuation and no nuclear waist to worry about.
Great video! Please know that lines of force do not rotate (they do not move) they only point in a certain direction.
N to S
Lines of force only move if they interact with other nearby lines of force.
You guys do such a good job with these videos. I wish we had stuff like this back in my electrical trade theory courses. We spent way too many hours in lectures to learn this. Way cool.
Schools drag it out so they can justify there salaries
Copper is conductive, I think it’s magnetic wire with a non conductive layer that just so happens to be the copper color. It has to be magnetic so three phases can make a magnetic line of flux to push the rotor in the right direction at the right torque, rpm etc… could be wrong but I was taught this. Like I said think about how a conductive wire would affect that field. Great video though, really help me a lot and FAST! Thanks
Good morning sir
I had come to know and build the theory of SCIG( squirrel cage induction generator)
Plz correct me if I am wrong and I would be "gladfull" full if u make corrections in this
When we connect the SCIG with 3 ph supply to stator and the rotor is coupled to a prime mover
The mg field is being produced in the stator and induced in rotor and now the rotor has its mg field
the rotor is rotated above the synchronous speed i.e -ve slip
Now the stator will be starting to provide supply to the grid
And through the process of induction the mg filed is countinue to produce in rotor
By the help of stator which it's providind supply to grid
Since mg field is producing in stator and induced in rotor
And the direction of mg field is reverse and the rotir directoin is reversed when compared to motor ( SCIM)
Your explanation is so good and it was understand for the students very fast and easier
Great information. Connecting the terminal box on top of indication motor.
Either star or delta. Absolutely fantastic information. Star uses less current.
This vedio is my life change. And mu carrier boost .thanks sir 😘🇮🇳
This video is so easy to understand. Brilliant. 🤯
Great visualization, thanks!
Help me out here Paul, i have a 6 lead motor where the leads are totally unidentified. I’ve found which sets of wires are the windings with my ohmmeter. That’s the easy part. The problem is that I don’t know what side of the windings are 1 or 2. Does that actually matter? Is there a way to test them to find out?
I love your videos! They help me tremendously! Thanks!
Some good ideas here: www.quora.com/How-do-I-identify-the-six-unmarked-leads-of-an-induction-motor
The Engineering Mindset this is very helpful. Thank you. And again, thank you so much for your videos. I’m a visual learner, so your animations are very helpful. I’ve become a far better electrician with a better understanding of things. So thanks!!!!!
my exam's tmr, this shi goated
Thank you for your efforts, dear professor, please put subtitles in Farsi language as well
Great video information 👍,
PLEASE make a video tutorial for
Calculating Feeder line conductor, OCPD, size of contactor and thermal overload relay plus trip setting calculation🙏👍
The star connection uses less voltage and less current which means it is more efficient than delta connection.Thanks for the video.
If used as a generator, would the delta configuration be better for generating?
Less voltage and less current means less power. It does not determine efficiency. Efficiency is the ratio of power in to power out. You may find efficiency drops if you change a motor from delta to star as the motor may struggle due to being under powered. Delta or star is used to match the motor coils to the supplied voltage. In the examples given in the video the coils are matched to 230 volts. When in delta the 230 volt line voltage is applied directly to the coils. When in star the coils are connected in a 120° phasing to 400 volts line to line voltage but each coil is still only getting 230 volts across it. This is because if you do the vectors as an isosceles triangle with one angle of 120° and the 2 equal sides of length 230mm the third side will be close to 400mm long (398.37mm) and the trigonometry will show that the sides are in the ratio of 1 : sqrt(3). If you have a 400 volt star motor left in this configuration but connected to a 230 line to line 3 phase supply then the voltage across each coil will now be close to 133 volts as the same ratio still applies (it is also 398.37/3). Where all this is important is when using a VFD (variable frequency drive) to convert single phase to 3 phase supplies. The most common (and cheaper as a result) VFD will take 230V single phase and turn it into 230V 3 phase. It is common to get a motor designed to run on 400V line to line 3 phase in star configuration and change it to delta to run it on a 230V single phase to 230V line to line 3 phase supply from a VFD.
Note these numbers are based on 230V being the actual voltage but the system could be based on 400V being the actual voltage and 230V being the approximate number. This does not matter as it may vary in reality between an upper and lower acceptable value at a much higher voltage at the point of generation.
@@Teknopottu Large generators use a neutral earth/ground resistor for fault detection. This needs a star point to connect it to so delta is not used. Motors do not make good generators as alternators generally have a wound rotor with control circuits to control the rotor current. This controlled current then maintains the generated voltage to the required tolerances.
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