Your ability to simply and concisely explain this is remarkable. You probably receive more gratitude for your free material than the jobs you get paid for. I'm so grateful for this content.
A great video explaining 3 phase delta connected loads. Just shows the old ways are still the best, I was taught the way over 30 years ago in fact Root 3 or 1.732 was drummed into me as a student. I later went on my local polytechnic now a university to get my HND in Electrical & Electronic Eng.
This is a helpful video, because it shows exactly how a delta load is connected in practice and where the driving source is located, not just how to calculate values based on a diagram.
Thanks for your time and effort. You did an amazing work helping thousands of students around the country today and many many years to came. Big Big THANKS
Impressive channel. You are a good example and good role model for young men in these darkening days of social decline and the dumbing down of the modern west. I will continue supporting your content, and recommend your channel to friends at the trade school (I am an electrician-apprentice)
Thanks very much for this, very helpful video. Could you advise on how a capacitor bank would be connected across this 3-phase load to implement power factor correction, and how this would affect the values of phase current/voltage? I understand the configuration for single phase supply but am struggling to visualise in a 3-phase delta sense. Many thanks!
Hi Joe, great presentations! Loving it all from Namibia. Could you please do presentation on Balancing of loads for both Star & Delta for THERMOSTATIC LOAD BALANCING PANEL. 😁 I hope this makes sense 😂😸 thanks.
These are by far the best videos i've ever found ! Thank you so much for them its really appreciated. I do have a question, how would I take these readings to work out the power used by this system ? Would I be using the Line current or the phase current value ?
Thanks so much, I'm glad the videos are helping. Power in a three phase system is line current times line voltage times power factor times the square root of 3.😁
Thanks for this great video, Joe. Just to satisfy my curiosity, all the Wago connectors I have seen have orange levers. Your ones seem to have white levers. Are they a special type?
Great video !! Just one question out of curiosity, since Delta system doesn't have a neutral, what happens to residual current in case of unbalanced load ? How do we deal with when the three loads have different power and drawing different current ?
Very clear to me now. I have a 5.5kw motor that has line voltages as follows: L1-L2 ..219V, L1-L3....379V and fails to run at all. Its powered by a 5.5kw inverter. is the problem with inveter or motor?
Thanks once again, Joe. So, how do we calculate the total power developed by this setup? Will is P = 3 * Phase current * phase Voltage = 3(0.1294 * 430) = 55.6W ? where 3 is the number of loads/resistors?
Just one question, to be clear: if you had used the voltmeter to measure the voltage between any one of those three live wires and a neutral or earth wire, you would have got a reading of 430/sqrt(3) ≈ 248VAC, right? And if the voltage between any two live wires had been 400VAC, you would have got roughly 230VAC between any one live wire and neutral or earth?
What is the use of calculating these relationships between line voltages and phase voltages? What is the use of this star and delta connected three-phase system?
One restricts the start up current on a motor so over current does not affect other equipment, tripping etc and once it is spinning normally after overcoming the initial start up it is then switched to the other which allows the full power to keep the motor turning at full efficiency. Star then Delta...( or is it the other way round...?) or something like this at least..
Joe, would I somewhat be right in thinking that star connected loads behave similarly to resistors connected in series? - as in the current is the same throughout the circuit. Also then, delta connected loads would behave similarly to resistors in parallel with regards to the voltage?
Kind of, star and delta are sort of additional ways of connecting loads. You can also have series and parallel circuits connected to three phase systems.
@@JoeRobinsonTraining thanks for the reply, and helping me in getting a better understanding of star and delta connected loads. Can't wait to watch the rest of your 3 phase videos
Great video but you never mentioned L3 , you only explained 2 phases, I know it's obvious for people who understand the topic but for people with very little knowledge of 3 phase going over all components would be better for clarity, I've worked with 3 phase of all my life but I had a lot of questions or when I started trying to understand the subject. But as always great video , Cheers
Just a question Joe but what would happen if you had a 3 phase installation but there was no 3 phase equipment but single phase loads spread out over the phases. So only 1 neutral for the return current from those 3 phases. Is that where you would have to run a bigger sized neutral to cope with all the returning current?
Great question, if you watch my three phase playlist you'll find an answer to this question in the videos where we calculate neutral current. The answer may surprise you... Three Phase: th-cam.com/play/PL7eNzIRgKe055yGSS4TaKks1WVQ2JDsKU.html
Nothing is more impressive than gathering knowledge from person that knows the basics so well .
Keep going on!
Ah thanks very much, stay tuned for more! 😊
This lad needs an MBE for services to the industry...I’m actually not even joking. Excellent video 👍🏿
Oh wow, that's really kind of you to say, thanks. I hope the videos are helping. 👍
Your ability to simply and concisely explain this is remarkable. You probably receive more gratitude for your free material than the jobs you get paid for. I'm so grateful for this content.
Been looking for a decent clip to explain this for ages. Finally I have found one!!! Thanks.
Ah good stuff, glad it helps!
Another great simple to understand video. Thanks Joe.
My pleasure Craig, thanks for continuing to watch. Stay tuned for more!
i admire your virtual set up that makes me see the connection obviously, so clear to understand for a beginner, a big thank you from HK😊
You're welcome, glad it helped! 😊
This has been really helpful Joe. Thanks for making this much clearer.
Thanks Joe, clearly explained.
My pleasure!
A great video explaining 3 phase delta connected loads.
Just shows the old ways are still the best,
I was taught the way over 30 years ago in fact Root 3 or 1.732 was drummed into me as a student.
I later went on my local polytechnic now a university to get my HND in Electrical & Electronic Eng.
Thanks Stewart, I always think its helpful to try and visualise what's going on with electrical science. Stay tuned for more!
Thanks a lot, Joe!
All the abstract things we were taught have been brought to the lowest of understandable terms in your video series.
Hi Joe, can you also show a video for delta connected load that is unbalance, and where the imbalance currents go.
Thanks for the practical video. It really clears my confusion about many theories.
This video is an epitome of simple and clear. Thumbs up for you!
Your across the load description finally made me get star and delta
Great to hear, thanks!
Undoubtedly, it's a clear explanation about Delta connection.. Thanks 🙏
You're welcome! 😊
This is a helpful video, because it shows exactly how a delta load is connected in practice and where the driving source is located, not just how to calculate values based on a diagram.
joe and gaz the teaching superheros once again thankyou joe for this really helpfull content
Thanks for the support of Joe Robinson Training and GSH Electrical 👍. All the best Gaz
Thanks for the kind comment Michael. Stay tuned for more!
Thanks for your time and effort. You did an amazing work helping thousands of students around the country today and many many years to came.
Big Big THANKS
excellent! love that you show via testing to verify.
Thank you very much for sending the playlist
My pleasure, hope it helps. 😊
Simply awesome. Depicting the circuits on that board the way they appear in diagrams makes it very easy to understand.
finally I am enlightened from this. thank you so much,
Good to hear, my pleasure.
Impressive channel. You are a good example and good role model for young men in these darkening days of social decline and the dumbing down of the modern west. I will continue supporting your content, and recommend your channel to friends at the trade school (I am an electrician-apprentice)
Why thank you very much! 😃
Thanks Joe, Explained beautifully !!
Keep up the great work, need more people like you around !!! 👍
The best teacher
Thank you so much, these are so well presented and easy to follow. I hope you know how good you are at teaching.
Amazing explanation, many thanks for your effort
Hi Joe thanks for these videos we are doing ac therory at trade school and these videos are very helpful
Nick
.. Keep on going sir.. Learning this from Botswana
Man I wish my motor controls instructor was as good as you at explaining transformer theory. Thank you sir!
Thanks man I needed this all of this and ur other video. U a out there helping.❤
Just doing what I do! Thanks much! 😊
This guy is the one if you want to learn from the begining.
Great lecturer,I have enjoyed your lesson, keep it up sir
very nicely explained
Delta connected loads? More like "Definitively connected logic!" Thanks for making such a clear and comprehensible video series.
😂 These have been cracking me up, thanks so much for commenting so creatively! 😊
@@JoeRobinsonTraining You are most welcome, and I really enjoy making them! Thanks for making this whole series.
Your videos are very helpful
Very good explanation by you sir. Please provide video on calculation of voltage and current in star and delta in deep.
Thanks Joe ry helpful material
My pleasure, glad it helped! 😊
great explanation. very useful video. I have subscribed your channel please bring more C&G Level 2 &3 related video.
Glad it's helpful, more content on the way!
Thanks very much for this, very helpful video. Could you advise on how a capacitor bank would be connected across this 3-phase load to implement power factor correction, and how this would affect the values of phase current/voltage? I understand the configuration for single phase supply but am struggling to visualise in a 3-phase delta sense. Many thanks!
Nicely done it.
Thanks man, Helped me a lot, great explanation 🍺🍺🍻.
Brilliant
Wow, thanks for all the comments James! 👍
Joe, this made perfect sense
Good to know, thanks Frank. 👍
Very impressive
Hi Joe, great presentations! Loving it all from Namibia. Could you please do presentation on Balancing of loads for both Star & Delta for THERMOSTATIC LOAD BALANCING PANEL. 😁 I hope this makes sense 😂😸 thanks.
thank you sir, you are such a life saver
You're welcome, glad it helped. 😊
Great video
Thanks a Billion 😁
You're welcome a trillion. 😊
These are by far the best videos i've ever found ! Thank you so much for them its really appreciated. I do have a question, how would I take these readings to work out the power used by this system ? Would I be using the Line current or the phase current value ?
Thanks so much, I'm glad the videos are helping. Power in a three phase system is line current times line voltage times power factor times the square root of 3.😁
Really is a great video.
How much power and resistance rated on the resistor ?
Thanks very much, think it's a 2.2kW resistor with a 50W power rating.
@@JoeRobinsonTraining 2.2K ohm or watts?
Yeah, sorry 2.2kohm, no one proof reads my messages! 😂
excellent. only one word.
Thanks very much much. Stay tuned for more!
Precious video
Thanks.
great video thank you very much !!!
Thank you so much
Thanks for this great video, Joe. Just to satisfy my curiosity, all the Wago connectors I have seen have orange levers. Your ones seem to have white levers. Are they a special type?
They are Ex rated for use with appropriate enclosures in potentially explosive atmospheres.
Ah, yes. I remember now. Thanks.
you need to teach us again Joe.
Who dis? Ex learner?
Great video !! Just one question out of curiosity, since Delta system doesn't have a neutral, what happens to residual current in case of unbalanced load ? How do we deal with when the three loads have different power and drawing different current ?
Great question, stay tuned for a future video. 😊
THANK YOU
Thank you so much 😊
My pleasure!
Hi thanks for the helpful video,
Question, How does the Line voltage change if the resistors are different values?
Heyyyyyy
I don’t know if you would see this
Thanks a lot
But then
In the last questions I’ve seen
They’ve been given different units for the resistors
I feel like i should pay for this...Thank you
Joe do you think you could do a video for electricians explaining what difference in potential means etc
Could you do a video on why a corner grounded arrangement acts the way it does? Commonly referred to as a ghost leg in the US.
Hm, never heard of that, I'll look into it. 👍
Very clear to me now.
I have a 5.5kw motor that has line voltages as follows: L1-L2 ..219V, L1-L3....379V and fails to run at all. Its powered by a 5.5kw inverter. is the problem with inveter or motor?
Thanks once again, Joe. So, how do we calculate the total power developed by this setup?
Will is P = 3 * Phase current * phase Voltage = 3(0.1294 * 430) = 55.6W ?
where 3 is the number of loads/resistors?
Very close, stay tuned for a future video!
thanks mate
Just one question, to be clear: if you had used the voltmeter to measure the voltage between any one of those three live wires and a neutral or earth wire, you would have got a reading of 430/sqrt(3) ≈ 248VAC, right? And if the voltage between any two live wires had been 400VAC, you would have got roughly 230VAC between any one live wire and neutral or earth?
Where does the square root of 3 come from Joe. Why is the current in delta line current not double the Phase current.
What is the use of calculating these relationships between line voltages and phase voltages? What is the use of this star and delta connected three-phase system?
It's how most generation, transmission and distribution systems work.
One restricts the start up current on a motor so over current does not affect other equipment, tripping etc and once it is spinning normally after overcoming the initial start up it is then switched to the other which allows the full power to keep the motor turning at full efficiency. Star then Delta...( or is it the other way round...?) or something like this at least..
Do you do videos on transformer vector groups?
Thanks sir
Pls I measure delta load I found neutral have 8.5 Amp
Phase A 4.5 Amp
Phase B 3.75 amps
Phase C 3.3 amps
??
Joe, would I somewhat be right in thinking that star connected loads behave similarly to resistors connected in series? - as in the current is the same throughout the circuit. Also then, delta connected loads would behave similarly to resistors in parallel with regards to the voltage?
Kind of, star and delta are sort of additional ways of connecting loads. You can also have series and parallel circuits connected to three phase systems.
@@JoeRobinsonTraining thanks for the reply, and helping me in getting a better understanding of star and delta connected loads. Can't wait to watch the rest of your 3 phase videos
When drawing on text book comes to life!
thank youu
Great video but you never mentioned L3 , you only explained 2 phases, I know it's obvious for people who understand the topic but for people with very little knowledge of 3 phase going over all components would be better for clarity, I've worked with 3 phase of all my life but I had a lot of questions or when I started trying to understand the subject. But as always great video , Cheers
Good point, might be worth doing an extra video. Watch this space!
Hi, Phase angles for the 3phase supply are 120º? Thank you in advance.
That is correct. 👍
@@JoeRobinsonTraining Thanks a bundle. Awesome videos man! and I'm just started!
Can we also use Krichoffs law to calculate phase currents?
Yes, taking into account the fact they're out of phase. 👍
if it wasnt 11pm I'd actually be clapping when I got to the end. Subscribed. Thanks
Have u got any video on semi conducter ,diac , tric and transistor
Not yet but it's on my to do list. 👍
Please can you make series about motors
Its too important
And nobody make good series
Such as synch motor
Induction
Servo
Stepper
Etc etc etc
Working on it as we speak, there are some videos on Motors on my channel already with a lot more to come!
Current is going to be the same before and after the load in the delta circuit?
Yup, until you get into the line conductor. 👍
Just a question Joe but what would happen if you had a 3 phase installation but there was no 3 phase equipment but single phase loads spread out over the phases. So only 1 neutral for the return current from those 3 phases. Is that where you would have to run a bigger sized neutral to cope with all the returning current?
Great question, if you watch my three phase playlist you'll find an answer to this question in the videos where we calculate neutral current. The answer may surprise you... Three Phase: th-cam.com/play/PL7eNzIRgKe055yGSS4TaKks1WVQ2JDsKU.html
Oh sweet thanks for that. I'll watch the whole play list tomorrow night. My head is a bit overwhelmed for now. Thanks so much for your vids
@@joshuacaldwell5887 my absolute pleasure, I hope they're helping. 😊
Hi how can i get 3 phase at home
Hello Sir how 220 3phase viltage equal 420 volt not 660 volt kindly prove Mathematically...plzzz
Hiya, try checking out my other 3 phase videos, it may help you understand a bit better. 😊
How about Energy in Delta connection
I need formula
👍
👍
but why square root of 3 ?
You should take off your ring when working with high voltage
How does a 3 phase 480V delta have 277V to ground ?
480 / 277 = 1.73. It is again the square root of 3.
🤩
Very helpful 😂
More than boring lectures
Like
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Great video
Thanks very much!