damn..i wish all teachers would take notes from this guy..slow..steady, articulate, on point, drawing out the explanations in a clear, concise way, to make it easy for anyone to understand the basics one NEEDS to know if you want to know HOW ac electricity and three phase systems work...THIS video should be a pre requisite for ANYONE getting into electronics. I do not work with electronics, AT ALL. but i wanted to know about ac, and thought it would good to know about three phases systems, and I always felt like i just wasnt getting the "picture" when other videos would explain..or they would explain in a way that was not very good for beginners... this guy's pace is easy to follow no matter how ignorant someone may be to electricity, ( and i should point out that some people may not know a few of the terms he uses, but thats why you should always have a dictionary with you and you should always stop a video and look up a definition before you move on..Ive watched SEVERAL videos ( 25-50..seriously..) i started to feel dumb just trying to figure out the WHY, and how, and there's always something missing from the other videos..if there wasn't..i would not have been continuously seeking more videos for a better explanation. This is the video i should have watched first to save a tons of time. THANK YOU.
These videos are amazing I have two years of electronics and this video finally helped me understand the why of it all and now it just seems to click. I would love to see his explanation of Delta/ Wye Configured transformer. Thank you so much!
+Clinten Schmidt we are glad to help. You can watch Dennis do a delta/wye, first drawing out the vector diagrams and then the connection diagram. If there is something specific you'd like to know after watching, just ask! ruclips.net/video/jZ_itUfCoyE/видео.html
There are many videos out there, but your explanation much easy to understand the three phase system. I would like to ask you three questions. 1. I don't see you draw and mention the ground connection for the three wires Delta system. Where does the ground wire connect to it? What are the wires colors for the high Voltages, i.e, 2400VAC .... to 12,470VAC? Do they have the same wires color codes for the Delta and Wye system?
I am finally getting it. I just needed to understand why, first. Now I can understand the reason the calculations work. Thanks for drawing that out and equating it to a generator.
I can relate to your need to understand why first. If you don't understand where these three voltages that are 120 degrees apart come from, then you're just going through the motions. These very important concepts that are really a prerequisite to ever appreciating and understanding three phase systems and transformer connections. I'm glad that the video provided you with a breakthrough in your understanding of why all this stuff works.
These vids are great. Was this done awhile ago? reason I say that is cause he is wearing a shirt and tie. I haven't seen an instructor wearing a shirt and tie in 45 years. Thanks again-JJ
That's how you guessed it was old? what about the single channel audio and crappy audio/video quality? These days even with one microphone it will still record to the 2 audio channels for left and right. oh well its still useful information...
Actually, when the videos were originally recorded, they were high quality and in stereo. In fact, Dennis had better equipment at the time than the local TV station had. But sadly the recordings were done on video tape, which degrades with time and use. The stereo signal was lost when I rescued the lectures from video tape and digitized them. Also some additional video quality was lost during the conversion. When I digitized them, I did it because Dennis had recently passed away and I didn't want what we had left of him to be lost. I took the time to load them to RUclips because I felt that some information in the videos would be useful to someone, and since they are free (notice that we don't bother you with advertisements), we would be doing a small public service by making them available. Sorry that you found them to be "crappy." Hope you can find some better quality ones that explain the subject correctly, and in an equally approachable and understandable way.
Set to 1.25 speed for better enjoyment of the video.
Good video. Really clicked it for me too. Three phase that is. This guy is a good teacher. some people just have a knack for making you understand.
Wow not even half way through and way better understanding than any other videos. Great teacher! Some people can just teach very well
FINALLY an explanation on what those angles actually mean in the real thing.
Thanks!
damn..i wish all teachers would take notes from this guy..slow..steady, articulate, on point, drawing out the explanations in a clear, concise way, to make it easy for anyone to understand the basics one NEEDS to know if you want to know HOW ac electricity and three phase systems work...THIS video should be a pre requisite for ANYONE getting into electronics. I do not work with electronics, AT ALL. but i wanted to know about ac, and thought it would good to know about three phases systems, and I always felt like i just wasnt getting the "picture" when other videos would explain..or they would explain in a way that was not very good for beginners...
this guy's pace is easy to follow no matter how ignorant someone may be to electricity, ( and i should point out that some people may not know a few of the terms he uses, but thats why you should always have a dictionary with you and you should always stop a video and look up a definition before you move on..Ive watched SEVERAL videos ( 25-50..seriously..) i started to feel dumb just trying to figure out the WHY, and how, and there's always something missing from the other videos..if there wasn't..i would not have been continuously seeking more videos for a better explanation. This is the video i should have watched first to save a tons of time. THANK YOU.
That was awesome. Best explanation I've seen so far.
These videos are amazing I have two years of electronics and this video finally helped me understand the why of it all and now it just seems to click. I would love to see his explanation of Delta/ Wye Configured transformer. Thank you so much!
+Clinten Schmidt we are glad to help. You can watch Dennis do a delta/wye, first drawing out the vector diagrams and then the connection diagram. If there is something specific you'd like to know after watching, just ask! ruclips.net/video/jZ_itUfCoyE/видео.html
+merchantjts
Please pass thanks to Dennis.
At first hisr talk made me giggle but... This is the best exposition "on tape" ever!
Thanks for the lesson, this really helped.
I wish He was my professor!
Thanks
There are many videos out there, but your explanation much easy to understand the three phase system. I would like to ask you three questions. 1. I don't see you draw and mention the ground connection for the three wires Delta system. Where does the ground wire connect to it? What are the wires colors for the high Voltages, i.e, 2400VAC .... to 12,470VAC? Do they have the same wires color codes for the Delta and Wye system?
I'm with you Khairuddin !
superb....
I am finally getting it. I just needed to understand why, first. Now I can understand the reason the calculations work. Thanks for drawing that out and equating it to a generator.
I can relate to your need to understand why first. If you don't understand where these three voltages that are 120 degrees apart come from, then you're just going through the motions. These very important concepts that are really a prerequisite to ever appreciating and understanding three phase systems and transformer connections. I'm glad that the video provided you with a breakthrough in your understanding of why all this stuff works.
You explain three phase motors clear.
really helpful video!!!
helped me a lot thanks.
goooooood job
"delta system", that's the name of my new band. maybe "phase to phase value". love the power curtains also
I like the automatic curtains!
this is good
This guy is....electric.
Watching this brought back nightmares...
Hopefully it's nothing that will require therapy!
can't help but notice the likeness to Tim Conway from the Carol Burnett show, aka Mr.Tudball
Dennis would get a big laugh out of that!
thanks profff
These vids are great. Was this done awhile ago? reason I say that is cause he is wearing a shirt and tie. I haven't seen an instructor wearing a shirt and tie in 45 years. Thanks again-JJ
john james I think there are a few wearing shirts and ties, but not many! Glad you liked the video...
That's how you guessed it was old? what about the single channel audio and crappy audio/video quality?
These days even with one microphone it will still record to the 2 audio channels for left and right.
oh well its still useful information...
Actually, when the videos were originally recorded, they were high quality and in stereo. In fact, Dennis had better equipment at the time than the local TV station had. But sadly the recordings were done on video tape, which degrades with time and use. The stereo signal was lost when I rescued the lectures from video tape and digitized them. Also some additional video quality was lost during the conversion. When I digitized them, I did it because Dennis had recently passed away and I didn't want what we had left of him to be lost. I took the time to load them to RUclips because I felt that some information in the videos would be useful to someone, and since they are free (notice that we don't bother you with advertisements), we would be doing a small public service by making them available. Sorry that you found them to be "crappy." Hope you can find some better quality ones that explain the subject correctly, and in an equally approachable and understandable way.