Excellent explanation for some of us who are just getting started in this complex world of electricity/current! I am studying HVAC and needed a more thorough understanding of what a contactor is and it's principles, and I came to the right place.
As the unofficial inexperienced, read, slower older guy in my group of fellow Motor Controls students, I've got to say that this short, clear, and to-the-point video is very effective. Of course, I would have never had this "Ahah" moment had I not already taken the class to begin with. Seeds were sown, you just added the water. Keep up the good work!
I have watched this video a couple times. Every Electrical apprentice should watch this before they go to their motor control class. Strongly recommend!
Here I am over a year after graduating from my apprenticeship, watching MC videos and it finally clicking in my brain. I was one of the slower guys in my class and it almost always takes me longer to grasp complex (to me) concepts. I'm glad RUclips exists 😂 Maybe next week I'll finally learn how to bend a 90.
This was the best introduction on these subjects, I have ever watched.Trust me I have seen several over the years. This in my opinion was the best. Thank you for your time, education, and for making it available to me. Semper Fi.
This really made it easy to understand. I worked underground as a coal miner mechanic, electrician. I always got mixed up with a magnetic trip, thermal overload and contractor heat strips. We had a control button you had to hold that had a series circuit wired with an open ground monitor, plus other things to trip the load center main breaker. Out Line starters we’e in the miner and other 3 phase machines
Andy M...A very good analysis of motor controls. Only one thing missing...Shown is a push-button to start the motor. When the button is released, the motor stops. You should include the "stop" button and show how the aux switch is wired though the stop button to disconnect power from the starter solenoid and either keep the motor running or shut it off.
the best explanation of motor starters and protection i ve ever seem very clear and unconfused thanks for take the time to teach other people your experiences
imagine watching videos like this for entertainment loving the concepts going to school and learning it further and then filling out hundreds of applications and getting told no every...single...time....
Holy shit I wish I saw this video before I was working on assembly of electronic frequency converter cabinets. I'm an electric engineering student, so I have knowledge of even the fine details of electronics but we were never told anything about contactors really, so I was pretty much in the dark when it comes to those. Now I understand perfectly how these contactors work and props for explaining the aux contactors as well. This video just puts so many pieces of the puzzle together for me!
@@gregpartain4307 it is astonishing, i did 3 years of my EE degree and went to work sales at an electrical distributor where they hoped I would be useful in pushing automation controls/products. Funny, you get there and I can do math and draw how this all works on paper no problem, but when you tell me what motor youre running and I need to build a quote for what size box you need depending on several factors, what contactor depending on iec or nema, amperage based on HP, etc, the overload you need, do you want an mpcb or not or will it benefit you in your case. on and on, i need a start stop, along the line i need sensors for this application and these length cables etc etc etc i learned so fast that EE taught alot, but reality came with hard-wired devices, it comes with costs, risks. It comes with understanding the engineer and working with the electrician. Sales gave me alot of insight and meanwhile connections to a ton of local customers and industries. I stll enjoy videos like these because so many EE majors, or new salesman, NEED to learn these asap to move on quickly. I can teach others better when these guys can break it down so simply. I remember asking an EE major to draw me a holding circuit for a motor or whatever, simple momentary start/stop + contactor + relay and they draw a circuit that would you add the prices of what each thing costs, they are putting the highest priced item (ie motor) at the highest risk possible. Realistically stupid, but yet it tech would work.
Fantastic, thank you sir for this awesome video. I learned so much.Please continue these videos ,I'll be grabbing my popcorn and enjoying everyone of your videos .
very good...I did not learn in this video...i already know all off this...I just watch and make sure my knowledge about all of this is correct...and yes.im right? good explanation very clear..love your videos.this is useful for the begginers...but guys be careful...always double check your connections before energized your work of arts.. 👋👋👋
I am majoring in Industrial Electronics. Currently taking Motor controls and DC/AC machine theory this semester. This video was very helpful in my studies.
Whomever manages this website for these Eaton Videos, needs to do the site and us all a favor and put all these explanation videos done by this guy explaining this and these types of videos into a separate playlist for the video so they can be easy to find and watch. There are so so many videos from Eaton that it’s damn hard to find these kind of really super useful training videos and explained by this guy in the video. Someone please do us all a favor and make a separate video playlist for these super helpful videos. I learned so damn much watching this video that I wish all the videos done and explained by this guy was in a separate video playlist so I could watch them all and learn.
I have quite quite a few 10HP, three phase motors on regular breakers, not MCPs. I haven’t seen an issue. I think there’s enough of a delay in the over current protection to allow for “small” motor in-rush. I do, however, still run contactors with heaters. If you run a disconnect, you still have either a branch circuit or homerun going to a breaker somewhere. I dunno about you, but I’ve never seen wires directly connected to a buss bar that wasn’t the service entrance cables.
My electric motors teacher mr.thornton is a great teacher though I like to see these videos....this is extremely helpful broken down in great detail...thanks
Not sure why this video was suggested, however a great video on motor control. You did miss one item on thermal overloads the old SQUARE D. These used a lead composite that unlocked a ratchet component to unlatch the circuit. Soooo old school but unfortunately they are still out there.
Well Made Video, very well made video. It is a blessing to see videos with such thought and care put in. All those dislikes are from people who had their brain short circuit from all the great information you provided or have a few wires missing and are simply peanut butter and jealous.
Breakers protect from overcurrent, not over heating. Overloads protect the motor from overheating, not overcurrent, Overheating can be caused by inductive reaction or if a motor is working to hard. which are also protected by fuses or breakers for overcurrent
Excellent presentation about motor control and protection concepts from beginner to intermediate level including applications. Highly recommended for professionals for a refresher lesson in motor protection.
First off let me say the video was very informative. My question is I have some older Machine tool equipment and would like to upgrade the controller's AKA Lathe, drill press and milling machine ,all 3 phase that I run on a 3 phase converter.
This is the most basic form of control. Yes a set of normally open Auxiliary contacts mounted on the side of this contact can prove a call for the motor by sending power to a light indicating it is pulled in.Also the 2nd set of auxiliary contacts behind the first using a normally closed set can have a light wired to it and the light is showing a status of Standby which means i'm ready to run by the light being lit up when the contractor is not engaged. Then the contractor closes which opens the normally closed auxiliary contact turning the light off which indicates the motor is being told to run and no longer in standby by mode. It doesn't prove the motor is running, it just proves it's being told to run. Proving the motor is running would require a CT. A CT measure amperage as it is wrapped around one of the power legs to the motor. If the motor contact engages and power is present the motor is now under a load and will pull amps as a result of powering the motor and the CT reads the amperage and a circuit board the the CT is terminated to it sends power to a digital output that can send 24 12 or 110 volts to a light indicating it is under a load, although if it is an air moving motor it still doesn't prove air is being moved, you may have a powered motor but a broken belt, thus it is powered but not moving air, the way to prove it 100% is to mount an air pressure switch with a tube in the air stream that measure air pressure, if it sense's air movement and closes a normally set of open contacts with power on one side to close, that in turn can send a signal back to the control board with voltage now passing through the air pressure switch to a digital input of the board thus proves your motor has power but also is under a load and with the air proving switch, proves it is in fact working moving air. Hope this helps.
Thank you, carry on these basics fundamental ultra important physical illustrated demonstration videos(too many calculations and theory in college, meanwhile we lack in practical examples, that method should be left for left 8 degree 4th-5th year, the first three years should be more practical)
Fantastic video!!! working at a place that deals in some electrical components and i can now finally say i understand what a contactor is and how it works!! :D the rest ahhh..... not so much... :P
Question: Why doesn’t the HMCP trip during the inrush when starting up a motor? 6-8 times the amps of the FLA of an industrial motor sounds significant enough to make that trip 🧐
I have be doing motor controls for about 23 years and I still enjoy listening to this. I enjoyed it thank you..
Excellent explanation for some of us who are just getting started in this complex world of electricity/current! I am studying HVAC and needed a more thorough understanding of what a contactor is and it's principles, and I came to the right place.
As the unofficial inexperienced, read, slower older guy in my group of fellow Motor Controls students, I've got to say that this short, clear, and to-the-point video is very effective. Of course, I would have never had this "Ahah" moment had I not already taken the class to begin with. Seeds were sown, you just added the water. Keep up the good work!
The best technical teacher excellent 👌
I have watched this video a couple times. Every Electrical apprentice should watch this before they go to their motor control class. Strongly recommend!
Here I am over a year after graduating from my apprenticeship, watching MC videos and it finally clicking in my brain. I was one of the slower guys in my class and it almost always takes me longer to grasp complex (to me) concepts. I'm glad RUclips exists 😂 Maybe next week I'll finally learn how to bend a 90.
I'm an EE major. Thank you for this clear and concise explanation of motor control.
Youre an EE major and you needed this video to clarify things for you?
Amazing, I guess any idiot can be an EE major.
Your not EE major lol
@@Dbr2408 You're right. I'm an EE now, and I work in aerospace.
Excellent, I finally understand the terms, theory and application. Great presentation technique too!
This was the best introduction on these subjects, I have ever watched.Trust me I have seen several over the years. This in my opinion was the best. Thank you for your time, education, and for making it available to me. Semper Fi.
On 5k
Good teacher
You are Claver
Man it feels so good to expand your learning capabilities and have refresher topics at the same time.
Hhh+
This really made it easy to understand. I worked underground as a coal miner mechanic, electrician. I always got mixed up with a magnetic trip, thermal overload and contractor heat strips. We had a control button you had to hold that had a series circuit wired with an open ground monitor, plus other things to trip the load center main breaker. Out Line starters we’e in the miner and other 3 phase machines
So what other disastrous things that only a forklift operator could pull out unexpectedly just to ruin a blue sunny coronavirus day"
I had alot of confusion when designing a control panel for my homemade outdoor warning siren. This video has done a decent amount of help!
your what
I teach this, and this is the best video I've seen to explain motor control in 15 minutes.
Best ever. Its the best way to learn from the beginning so you know and understand why you need it all...Many Thanks
I learned more from this video than I did in an electronics course in college .... great video .... I liked and saved.
And Subscribed.
outstanding way of explaination
Andy M...A very good analysis of motor controls. Only one thing missing...Shown is a push-button to start the motor. When the button is released, the motor stops. You should include the "stop" button and show how the aux switch is wired though the stop button to disconnect power from the starter solenoid and either keep the motor running or shut it off.
I’m an electrician and needed a brush on motor controls. This is great.
Best possible explanation of such a confusing thing and that too so easily... Bravo... U r d best
Bravo. Organized, articulate and great graphics. Thank you!
The best 15 minutes you can spend for a solid overview on basic motor control!
the best explanation of motor starters and protection i ve ever seem very clear and unconfused thanks for take the time to teach other people your experiences
my brain Hertz
Dont worry its just a cycle
Haha hertz
Meditate like a monk "oooooohhhmmmm"
@@dustinmaurice407 Oh my god those puns are good.
Just eat some PIE 🥧
imagine watching videos like this for entertainment
loving the concepts
going to school and learning it further
and then filling out hundreds of applications and getting told no every...single...time....
Wtf. I leanred more in this video then in my motor controls class SMH.
is this all MCC(motor control center )
Jose V. Lmao
Hehe yep trade school is a joke
Lol
I felt that way too but then again 7 yrs ago i was 20yrs old so i was in class dickn Around. 😇
This video was amazing - I don’t even work with motors at my job!
This is absolutely perfect! Easy to understand and not overly complicated :)
Thankyou
Very detailed but yet simple and comprehensible video! Kudos to you!
Best explanation ever, now I understand motor starter👏👏👏👏👏👏
I have learned that to control a motor, we must have a short circuit protection and over current protection. Thanks.
i must say you are absolutely good in what you are doing.comprehensive explanations
Thanks a lot sir, 15 days lessons in 15 minutes. Awesome
Holy shit I wish I saw this video before I was working on assembly of electronic frequency converter cabinets. I'm an electric engineering student, so I have knowledge of even the fine details of electronics but we were never told anything about contactors really, so I was pretty much in the dark when it comes to those. Now I understand perfectly how these contactors work and props for explaining the aux contactors as well. This video just puts so many pieces of the puzzle together for me!
I’m amazed on how many electrical engineers aren’t taught the basics in motor controls and components.. good luck and keep learning buddy
@@gregpartain4307 it is astonishing, i did 3 years of my EE degree and went to work sales at an electrical distributor where they hoped I would be useful in pushing automation controls/products. Funny, you get there and I can do math and draw how this all works on paper no problem, but when you tell me what motor youre running and I need to build a quote for what size box you need depending on several factors, what contactor depending on iec or nema, amperage based on HP, etc, the overload you need, do you want an mpcb or not or will it benefit you in your case. on and on, i need a start stop, along the line i need sensors for this application and these length cables etc etc etc
i learned so fast that EE taught alot, but reality came with hard-wired devices, it comes with costs, risks. It comes with understanding the engineer and working with the electrician. Sales gave me alot of insight and meanwhile connections to a ton of local customers and industries.
I stll enjoy videos like these because so many EE majors, or new salesman, NEED to learn these asap to move on quickly. I can teach others better when these guys can break it down so simply. I remember asking an EE major to draw me a holding circuit for a motor or whatever, simple momentary start/stop + contactor + relay and they draw a circuit that would you add the prices of what each thing costs, they are putting the highest priced item (ie motor) at the highest risk possible. Realistically stupid, but yet it tech would work.
Very good explanation of how to control a motor. Loved the illustrations as well
Thanks for your video. Really learned a lot from it.
Best explanation I've saw,really clear and straight to the point...👍👍
Fantastic, thank you sir for this awesome video. I learned so much.Please continue these videos ,I'll be grabbing my popcorn and enjoying everyone of your videos .
I just want to applaud you for making this topic very simple
very good...I did not learn in this video...i already know all off this...I just watch and make sure my knowledge about all of this is correct...and yes.im right? good explanation very clear..love your videos.this is useful for the begginers...but guys be careful...always double check your connections before energized your work of arts.. 👋👋👋
We need more of this guy
I am majoring in Industrial Electronics. Currently taking Motor controls and DC/AC machine theory this semester. This video was very helpful in my studies.
Whomever manages this website for these Eaton Videos, needs to do the site and us all a favor and put all these explanation videos done by this guy explaining this and these types of videos into a separate playlist for the video so they can be easy to find and watch. There are so so many videos from Eaton that it’s damn hard to find these kind of really super useful training videos and explained by this guy in the video. Someone please do us all a favor and make a separate video playlist for these super helpful videos. I learned so damn much watching this video that I wish all the videos done and explained by this guy was in a separate video playlist so I could watch them all and learn.
Simply Wonderful! Crisp and to the point.
Excellent teaching. It's explained in an easy to understand way.
What an awesome explanation, clear, to the point, perfect, thanks so much!💯🥊
I don't normally comment on videos. But this was exceptionally good. Thanks a lot and please keep it up.
This is one of the best videos I have seen. The explanation in the video is superb! Thank you.
Very clear,insightful and well explained✊❤️
Pretty much summed up my first semester of motor control in 16 minutes!
Matthew Elizarraras hi matthew ur from which university and place?..
Pls. Link second semester info videos thanks
Very nice and simple to understand explanation 👍👍
Very nice and clear way of explaining step-by-step at an asset level application. Thanks
I have quite quite a few 10HP, three phase motors on regular breakers, not MCPs. I haven’t seen an issue. I think there’s enough of a delay in the over current protection to allow for “small” motor in-rush. I do, however, still run contactors with heaters.
If you run a disconnect, you still have either a branch circuit or homerun going to a breaker somewhere. I dunno about you, but I’ve never seen wires directly connected to a buss bar that wasn’t the service entrance cables.
Gosh, I think I finally learned something about electricity. Great demo. Thanks.
Very nice presentation. If I may add, the "inrush" current is also called "locked rotor" amp.
Wrong
My electric motors teacher mr.thornton is a great teacher though I like to see these videos....this is extremely helpful broken down in great detail...thanks
Tell Mr.thornton he is lucky to have a student like you..☺️
Never watched a well presented educational video like this. Thank you for uploading.
Wonderful video! Very easy to understand. I don't subscribe to many channels but I subbed to this one. Thanks for posting!
Best One !!! To know about motor control
Just found this video, very informative. Thank you, keep the great work
Well done- clear, concise, understandable.
Parts guy learning to speak maintenance. Awesome video. Sub'd
Please make more videos! This was awesome
Not sure why this video was suggested, however a great video on motor control. You did miss one item on thermal overloads the old SQUARE D. These used a lead composite that unlocked a ratchet component to unlatch the circuit. Soooo old school but unfortunately they are still out there.
Well Made Video, very well made video. It is a blessing to see videos with such thought and care put in. All those dislikes are from people who had their brain short circuit from all the great information you provided or have a few wires missing and are simply peanut butter and jealous.
I have been teaching myself plc controls and 3 min in the video I could tie this to basic plc ladder logic
Breakers protect from overcurrent, not over heating. Overloads protect the motor from overheating, not overcurrent, Overheating can be caused by inductive reaction or if a motor is working to hard. which are also protected by fuses or breakers for overcurrent
thats a splendid explanation there
This is fantastic video than my teacher... Please do more videos... I've just turn on notifications 👏🏾👏🏾👏🏾👏🏾
thanks for this excellent vid..please make another about excitation system of generators..🙏
The benefit of watching Own Producer's videos vs academic faculty ones.
To the point and clear explaination .Thanks for sharing.
God that auxiliary contact thing is such a weird size? It’s tripping me out. Love this vid
really good video to simplify motor controls
Good stuff. Foundation level and clearly explained. Thanks for putting this video together. Appreciate the time and effort.
I learned a lot. Please have more videos. It's very helpful.
This was the best informative video on this subjects .
Dang forklift driver... Probably let the breaker get moldy just after he set that big ole box on the conveyer we are going to be here all night
15:59 Well done sir please come with a lot motors and controls
Excellent presentation about motor control and protection concepts from beginner to intermediate level including applications.
Highly recommended for professionals for a refresher lesson in motor protection.
That was an excellent explanation
Thanks for the clear explanation! Just what I needed
I love this video like pillow talk with a lady.
First off let me say the video was very informative. My question is I have some older Machine tool equipment and would like to upgrade the controller's AKA Lathe, drill press and milling machine ,all 3 phase that I run on a 3 phase converter.
This is the most basic form of control. Yes a set of normally open Auxiliary contacts mounted on the side of this contact can prove a call for the motor by sending power to a light indicating it is pulled in.Also the 2nd set of auxiliary contacts behind the first using a normally closed set can have a light wired to it and the light is showing a status of Standby which means i'm ready to run by the light being lit up when the contractor is not engaged. Then the contractor closes which opens the normally closed auxiliary contact turning the light off which indicates the motor is being told to run and no longer in standby by mode. It doesn't prove the motor is running, it just proves it's being told to run. Proving the motor is running would require a CT. A CT measure amperage as it is wrapped around one of the power legs to the motor. If the motor contact engages and power is present the motor is now under a load and will pull amps as a result of powering the motor and the CT reads the amperage and a circuit board the the CT is terminated to it sends power to a digital output that can send 24 12 or 110 volts to a light indicating it is under a load, although if it is an air moving motor it still doesn't prove air is being moved, you may have a powered motor but a broken belt, thus it is powered but not moving air, the way to prove it 100% is to mount an air pressure switch with a tube in the air stream that measure air pressure, if it sense's air movement and closes a normally set of open contacts with power on one side to close, that in turn can send a signal back to the control board with voltage now passing through the air pressure switch to a digital input of the board thus proves your motor has power but also is under a load and with the air proving switch, proves it is in fact working moving air. Hope this helps.
Outstanding videos!
Thanks a lot, my teacher explains manytimes but i never understand it untill after seeing Your video.
Whoah, Really awesome and simple video to understand, I will surely check out your other videos.
Thank you, carry on these basics fundamental ultra important physical illustrated demonstration videos(too many calculations and theory in college, meanwhile we lack in practical examples, that method should be left for left 8 degree 4th-5th year, the first three years should be more practical)
My brain is Eaton all this up.
Very well done and comprehensible.
YOU HAVE EXCEEDED YOUR "SO" QUOTA FOR THE DAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Very educative. I love the way you explained it
Desde Colombia, gracias
Thank you for explaining it in such an easy way
Thank you so very much. I’ll be watching this video a few more times for everything to register. :()
Fantastic video!!! working at a place that deals in some electrical components and i can now finally say i understand what a contactor is and how it works!! :D the rest ahhh..... not so much... :P
Question: Why doesn’t the HMCP trip during the inrush when starting up a motor? 6-8 times the amps of the FLA of an industrial motor sounds significant enough to make that trip 🧐
Broken down and explained simply. Bless you.
Amazing explanation, thanks!
Extra ordinary video..Big thnx for u for uploading
Madhav Yarlagadda