Considering this was uploaded many many many years ago means video quality is always going to be an issue. Regardless, love this video. As a licensed electrical engineer, most of my work evolves around drawings and getting to see how the actually detailed mechanism and wiring works great. This also allows me to understand how the breaker is actually mounted. Thank you!
Thank you! Over the years I have had many EE's ask me to see pic's of the real thing for the same reason. Let me know if there is something in particular you would like to see and perhaps I could do a video about it!
Thank u for the video. It is the most succinct explanation of a 3PH panel I have seen. Being a female apprentice I am hesitant to ask for more explanation if I dont initially understand something bc the belittling I get from the instructors is just not worth it. I have learned more from RUclips than I have in 3 years of classroom theory. I really appreciate ur knowledge & the fact that u share it so freely. Be safe & thanks again!
You are so welcome. It really helps me to know that people can learn from videos like these. All too often I forget to mention something or misspeak in a video and I become a hack or whatever else the youtube trolls feeling like calling me that day. NOBODY needs or should be belittled. Let me know if there is anything else I can help you with!!
Thank u - appreciate the response. What I can say is that what helped the most is that u broke down the panel into its most basic components thereby making the info that follows much easier to absorb. All to often senior mechanics tell u WHAT to do, but rarely tell u WHY ur doing it (I realize that time constraints do not permit explanation of every little thing but really, panel installation instruction HAS to be concise . . . its basically the heart of ur electrical system) Even when a mechanic is actively trying to impart knowledge they inevitably omit something because it is so rote, or ingrained in them and their personal experience is so far beyond that initial step, they automatically gloss over it. I love the detail in ur videos. And when u think about it, WHO are u trying to reach . . . the people who want/need to learn the trade or the trolls who think they already know everything? As for "anything else" . . . If u have a video on Fluke testers please let me know. As much as I hate to admit it this far in, I have basically no experience with it (we are treated as assembly-line monkeys) so we just do commercial installations before anything is energized.
Thanks, I know over the years I've heard "your not ready for it" or "I don't have time to explain, we need to get this done" Another thing is they don't know how to explain it they just know how to do it. I haven't made any videos specific to a Fluke,you didn't say what type but maybe it's time I make one. I have a couple different Flukes designed for different purposes. Thanks again for commenting and watching my videos.
as a female apprentice, it is your job to learn as it theirs to teach you. electricians and shops will come and go, but the knowledge needs to stick. the best revenge is success.
I'm a journey man in Texas and I will be the first to tell u that that's a beautiful looking panel and people don't understand that's it's not easy to make them look that good it takes finesse lol but u did a great job
I have a commercial building and it has 3 phase. We had one of the phases go out. I had to learn that its possible for that to happen. 1/3 of our power was on in the building. A real learning experience. Thanks for the video!
Congrats on the job, designed in America! Tell your boss they need to up their game on the QO/HLINE breaker terminals. Those basically flat plates that can take two wires are a real weak spot, and pain to tighten down square. Whoever wired that panel in this video knows what I'm talking about. www.google.com/search?client=ms-android-verizon&tbm=isch&q=square+d+qo+breaker+wire+terminal&spell=1&sa=X&ved=0ahUKEwi_lOz6ydjZAhUo5IMKHZ_IBtEQBQhLKAA&biw=360&bih=612&dpr=2#imgrc=JOBubWs_jkqu-M:
Great explanation on how a 3 phase panel works.. one of the only video's i have found that is simple, short and that you feel like you have come away educated.
That really is a good question! For years I thought that I didn't need to know about Ohm's Law.But as I moved into a different direction in my career I realized how important it is to understand it. I started doing a lot of remodels and service calls about 15 years ago and found out quick that I need to know more. I think if a person really wants to succeed in the Electrical Ind. they must understand all aspects of this industry.My advise--Learn as much as you can about all aspects of electrical
great explanation! I've been so confused in the 3 phase panels in school. I mainly do residential electric work so i never get to see these panels. This cleared it right up for me!
I really find your videos useful. I like Fritz have a degree that has gone unused because I went in a different direction but find myself returning to old skill sets to make a living. You videos are a wonderful refresher to those of us that are a little behind in the actual application of the trade and as you said to some goof down ing the postings, we all have to start somewhere. Thanks and keep up the great work.
I'm studying three phase from an electrical engineering book for my Master's License. (plus a challenge from my company) Although we use it and know how to use it, the principles behind it is intriguing. Keep up the good work.
Brother thanks a lot for the video. I never comment on you tube but I had to on this one. I'm an apprentice and just joined the union and this really helped me have a better field understanding of phasing. Thanks again bro.
Thank you for this video, now I understand how the neighbors were able to hide how they were stealing power without causing overloads. Time to call the city inspector and the power company.
Absolutely.You would need 1-single or double pole breaker installed. Wiring to your device would be hot,neutral and ground for a single pole and depending on your requirements you could run two hots to a motor,light or whatever. Always check your spec's before running any power.
There are many varieties of breakers and panels. 3 phase panels are built both plug on and bolt on styles. There are 3 phase load centers(plug on) and 3 pahsepanelboards(bolt On).You need to use the specified style breaker to match the type of panel your using.
my father had installed a GFCI outlet in the kitchen. He wired it up, turned the power on, and plugged in the coffee maker, the bottom outlet worked fine, the top when plugged in tripped the GFCI breaker. So he broke out the manual, and found the wiring was backwards. turned power off, removed outlet, and wired it the right way. Works great now. Still goes to show. Even AC power doesnt have poles, (like DC) correct wiring is a MUST to prevent faults. I believe hot and ground was switched?
We are a third of our lives at work! How little we store memories from this period? In fact, I have tried to record some of the events on film and video! Use every opportunity and record the people on the job, working methods, in order to leave some memories to future generations. The time it takes an amazingly fast!
this is awesome, apprentice here who mostly gets put in the suites I don't get to work in electrical rooms too often since the work is defaulted to Licensed workers
Wonderful explanation. Only small change, On a single phase step down transformer ( Panel not shown) used for most households, only one phase. "which is split phase" Thank you, of great information, although most of us will never deal with this much power, which is 1.5 times more power than single phase.
Awesome video. We're farmers that now have need for 3 Phase panel fed by a Phase Perfect Converter. Your detail was perfect - thank you. If you have video on phase converters I'd live the link.
@davec3487 Most of the installations I run across the motor starters are located near the motor. All of the car wash's I work on have a MCC,Motor Control Center, located some where in the equipment rooms. So really it depends on the application.
I find these useful and my degree is in EE. They are a good, quick sanity check after not using my degrees in decades and of course for EE I was concentrating on integrated circuits and signals and systems, not power engineering. Keep up the good work and ignore the criticisms that are out of wack.
After watching your video it seems to me as if you know your stuff. I am a do it yourself kind of guy, I haven't always been over the last 5 years I have started. I run a Restaurant and therefore i have many opportunities of fixing various things. I have an electrical issue in my parking lot, I will add a second comment for the rest.
Also, I'm asking mostly from a theoretical standpoint, not necessarily whether unbalancing the phases will cause specific problems like burning your house down (I know it won't). And I know that the overwhelming number of boxes I've worked on had circuits both originally placed, and later added, without any sort of real forethought, so I know it is common to just pop breakers in wherever. Does it make a difference?
Finally a decent looking panel button-up on youtube! :)
12 лет назад
It's quite different than European electrical installation. We have everywhere three phase (black, brown and gray), neutral (fair blue) and groun (green or green-yelow). There are one some phase (in left hole), neutral (in right hole) and ground in 1phase (230V) power outlet. There are three phases, neutral and ground in 3phase (230/400V) power outlet. Every diferent circuits are bad. It is interesting your wiring in America. Sorry for my English :)
Thank you . Some phases A B or C can be a high leg 220 . so i learn that the hard way in my younger years has a electrician. Test ur phases and breakers and circuits at all times before you plug or connect something. Doenst have to be just commercial. On high legs
Could you add a 3 phase breaker for an AC unit within the panel used in your video? Say in apartments that take single and two pole breakers. We want to add a 3 phase breaker to each panel for the AC unit?
What are the breaker configurations 1p vs 2p?Have you taken amp draws on all breakers or just the main? Balancing is done by relocating breakers to another phase depending on 1p vs 2p breakers. Balancing a single phase panel vs 3phase panel are 2 different animals. How did this panel get to having a load difference? 200+ on line 1? What size is that panel? THere is a little more to it but these are the basics.
Thanks for the explanation,. how 3 phase wires color code are connected to any 3 phase input equipment, if 1 or 2 color are different ? ... thank you . Tito
I would first test power at your service. Check fuses,turn off all breakers at your panel then test again. Sounds like it could be the main fuses or incoming power. R U using a quality tester? Let me know more.
Can you show the actual putting a breaker in... a video, as opposed to still shots. I want to see the breaker installed or is there a seperate breaker for for each of the 3 phases? I don't understand?
Really like these videos, there isnt a whole lot out there that explains in detail on three phase panels / wiring.... Do you run into a lot of three phase with a high leg, or are most 3 phase 208 / 480 systems?
Sparky, Hi, so I'm hooking up a baler that's 480 3 Phase, now i have 2 panels, one is a MLO to a MCB and it looks like they took 4 wires from a breaker inside the MLO that goes down to a transformer and from the transformer it goes into the MLO that has all the breakers for everything. Now can i hook a 3 pole breaker for my baler off the panel or should go to the MLO (The MLO doesn't look like i should hook anything to it directly.
If you have a (stinger lead) say one lead is 208 and other two are 110 each. How do you lay out your breakers? Say I don’t need that much draw off of “C” bar do I just skip loading onto that bar? Additionally what could you run off of the stinger lead? If you had an oven you’d still need two leads of 110 right, can’t just have one breaker onto the 208 lead? Tks great video
just want to ask how do you do load balancing... Our supervisor sad that during Maintenance, Line 1 was reading to about 200+ amps while Line 2 was around 120+ amps... how do you do the balancing?? thanks
Great video,a questioncreated while watching this video is,if the busbars are not connected between each other,doesn’t every phase in that case work as a single phase?
Yes, but they are 120 degrees out of phase. In single pole breakers this is not important, but in double pole and triple pole this becomes important. You use a double pole for 208V, not 240 in this system due to that phase difference. And the same rules apply to the three pole breakers. The breakers and the phase allow them to work together as if they were one continuous source of power to the devices on the line.
Great explanation of the subject, but I do have a question specifically about the MCB panel. I have a Siemens panel that looks identical to the MCB panel in your video, maybe a little smaller. However it didn't come with the white switch at the bottom, nor is there room or a location to mount one. How do I go about getting my power into the panel? Any help is appreciated thanks.
Awesome video, keep them coming. Can you explain a splitter panel setup? I just went through intermediate for my apprenticeship. We did a lot of splitter calculations but nothing practical.
Sparky, if I have a 3 phase service panel and want to put in a 2 pole breaker won't the phasing be wrong for 220 appliance to work? Three phase is 120 degrees, single phase is 180 degrees out of phase.
I've got a question ? When testing a 3 phase panel I got a reading of 24v 120v 24v can you explain the circumstances this would happen? This is what I get from the Electrical room to my service panel?
I am trying to create a 3 phase panel, to run 4 electrical machine off of. Originally there is a single three phase coming in, and I want to split that off to 4 separate machines. I saw how you showed the 3 phase panel box, and this design looks similar to something that I need. Each machine needs to have at least 240 vdc coming off the breaker so that I can tie them into a transformer for each and which will step that 240 up to 480 that the machine requires. However, I have never made a spliter box before, and I need to know how this entire process is done CORRECTLY so that I will not destroy anything.
With 220/ 277 etc. you are pulling less amperage as opposed to a 120 volt circut. For example a circut on 120 volt may require 7.0 amps but on 220 volt circut the same device only requires 3.5 amps.
I do understand the functions (sort of) between hot neutral and ground of home wiring. I know you cannot get them switched or else faults or a fire could occur. as i was younger i did mess with electrical wiring. ( blew the breaker a few times ), but still have a respect nowadays as an adult. IF YOU do not know what you are doing, DONT ATTEMPT IT. Electricity is non forgiving and your life could be ended. I blow stuff up with 110v sometimes, but always remember to make sure power is cut JIC
If I have 3 existing 220 single phase 4 wire outlets each with it's own breaker, is it safe to assume that all of those wires from each outlet come back to the main panel? In other words, would any of those wires coming off the outlet be tied to anything somewhere in the wall, other than at the breaker box, assuming it is to code? I am wondering if I can add a 3 phase subpanel, that would work off a digital phase converter that could use the existing single phase wiring to create a three phase outlet or connection? I obviously would have to find the appropriate neutral and ground wire for each outlet. Can you comment?
So is there a need to try to make sure that the individual breakers for each circuit are balanced out between phases, as best as you can, or could one put all 30 amp breakers on one phase, all 15 amps on another, etc. My understanding is that drawing more amps off of one phase would unbalance the phases, even if it doesn't have any practical effects in terms of causing problems, whereas my father says it doesn't matter which breakers go on which phase because it will all even out in the end.
During a power failure, is it possible for just one phase to go out while the remaining two are on, or would all three phases go out during a power failure?
It would have been really cool if you had also detailed the wiring on this breaker by doing mock install of the wires into the terminals as you explained the panel. All n' all, great video.
i would like to learn more about motor and motor controls for instance delta? wye ? how do you connect them can you help with the type of questions that the nec gives?
Ok I'm not going to disregard American electrical standards but please tell me that their is secondary protection from the exposed 'Live parts' in your Distribution boards? Does the first board have a main isolator? To isolate the entire board? Maybe I'm mollycoddled to what I'm used too.
+TheTechnonugget That's incorrect. Some forms of 3-phase have neutrals and some don't. 3-wire delta, which has no neutral, is standard in bulk power transmission. 4-wire wye, which does have a neutral, is very common in utilization voltage wiring in commercial buildings, e.g., 120/208V in North America. 277/480V 4-wire wye is also common where it is used to supply both pure 3-phase loads, such as motors and transformers supplying 120/208V, wired to just the three phases, and single-phase loads such as fluorescent lighting, usually connected between one of the supply phases and neutral for 277V. 4-wire wye is also common in medium voltage (e.g., 7200/12.6 kV) distribution circuits in most of North America; single-phase distribution transformer primaries are again connected between one supply phase and neutral. One exception is California, where all single-phase distribution transformers seem to be connected phase-to-phase, although a grounded neutral is sometimes carried for the shields of underground primary wires. There's also a rather uncommon 4-wire delta system that carries three phases plus a neutral derived from the center tap of a transformer between two phases. This has the advantage of providing 3-phase 240V delta, 120/240V "split" phase and 208V single phase all on one distribution circuit.
Considering this was uploaded many many many years ago means video quality is always going to be an issue. Regardless, love this video. As a licensed electrical engineer, most of my work evolves around drawings and getting to see how the actually detailed mechanism and wiring works great. This also allows me to understand how the breaker is actually mounted. Thank you!
Thank you! Over the years I have had many EE's ask me to see pic's of the real thing for the same reason. Let me know if there is something in particular you would like to see and perhaps I could do a video about it!
Thank u for the video. It is the most succinct explanation of a 3PH panel I have seen. Being a female apprentice I am hesitant to ask for more explanation if I dont initially understand something bc the belittling I get from the instructors is just not worth it. I have learned more from RUclips than I have in 3 years of classroom theory. I really appreciate ur knowledge & the fact that u share it so freely. Be safe & thanks again!
You are so welcome. It really helps me to know that people can learn from videos like these. All too often I forget to mention something or misspeak in a video and I become a hack or whatever else the youtube trolls feeling like calling me that day. NOBODY needs or should be belittled.
Let me know if there is anything else I can help you with!!
Thank u - appreciate the response. What I can say is that what helped the most is that u broke down the panel into its most basic components thereby making the info that follows much easier to absorb. All to often senior mechanics tell u WHAT to do, but rarely tell u WHY ur doing it (I realize that time constraints do not permit explanation of every little thing but really, panel installation instruction HAS to be concise . . . its basically the heart of ur electrical system) Even when a mechanic is actively trying to impart knowledge they inevitably omit something because it is so rote, or ingrained in them and their personal experience is so far beyond that initial step, they automatically gloss over it. I love the detail in ur videos. And when u think about it, WHO are u trying to reach . . . the people who want/need to learn the trade or the trolls who think they already know everything? As for "anything else" . . . If u have a video on Fluke testers please let me know. As much as I hate to admit it this far in, I have basically no experience with it (we are treated as assembly-line monkeys) so we just do commercial installations before anything is energized.
Thanks, I know over the years I've heard "your not ready for it" or "I don't have time to explain, we need to get this done" Another thing is they don't know how to explain it they just know how to do it.
I haven't made any videos specific to a Fluke,you didn't say what type but maybe it's time I make one.
I have a couple different Flukes designed for different purposes.
Thanks again for commenting and watching my videos.
2018!! I like his videos 🙄 Good job man.. SPREAD LOVE ❤💚💛
as a female apprentice, it is your job to learn as it theirs to teach you. electricians and shops will come and go, but the knowledge needs to stick. the best revenge is success.
I'm a journey man in Texas and I will be the first to tell u that that's a beautiful looking panel and people don't understand that's it's not easy to make them look that good it takes finesse lol but u did a great job
It takes BIG balls to do that.
Is that strande wire or solid????
@@georgeswindolljr1980 hype!!
I have a commercial building and it has 3 phase. We had one of the phases go out. I had to learn that its possible for that to happen. 1/3 of our power was on in the building. A real learning experience. Thanks for the video!
Thank you!
New mechanical engineer at Schneider Electric here. You helped out a lot sir. Thanks.
Good luck in your career and thank you for the kind comment!!
Congrats on the job, designed in America! Tell your boss they need to up their game on the QO/HLINE breaker terminals. Those basically flat plates that can take two wires are a real weak spot, and pain to tighten down square. Whoever wired that panel in this video knows what I'm talking about.
www.google.com/search?client=ms-android-verizon&tbm=isch&q=square+d+qo+breaker+wire+terminal&spell=1&sa=X&ved=0ahUKEwi_lOz6ydjZAhUo5IMKHZ_IBtEQBQhLKAA&biw=360&bih=612&dpr=2#imgrc=JOBubWs_jkqu-M:
Thank you! Sign guy here buried in learning the NEC code book, and this video helped me with visualizing this!
Great explanation on how a 3 phase panel works.. one of the only video's i have found that is simple, short and that you feel like you have come away educated.
Awesome! Thanks so much for your comment!
That really is a good question! For years I thought that I didn't need to know about Ohm's Law.But as I moved into a different direction in my career I realized how important it is to understand it. I started doing a lot of remodels and service calls about 15 years ago and found out quick that I need to know more.
I think if a person really wants to succeed in the Electrical Ind. they must understand all aspects of this industry.My advise--Learn as much as you can about all aspects of electrical
great explanation! I've been so confused in the 3 phase panels in school. I mainly do residential electric work so i never get to see these panels. This cleared it right up for me!
Thank you,I'm glad it helped!
I really find your videos useful. I like Fritz have a degree that has gone unused because I went in a different direction but find myself returning to old skill sets to make a living. You videos are a wonderful refresher to those of us that are a little behind in the actual application of the trade and as you said to some goof down ing the postings, we all have to start somewhere. Thanks and keep up the great work.
Excellent introduction for those of us who have worked only with single phase. Thank you.
Thank you and happy to hear it helps!
I'm studying three phase from an electrical engineering book for my Master's License. (plus a challenge from my company) Although we use it and know how to use it, the principles behind it is intriguing. Keep up the good work.
Thank you and good luck in your studies!
Brother thanks a lot for the video. I never comment on you tube but I had to on this one. I'm an apprentice and just joined the union and this really helped me have a better field understanding of phasing. Thanks again bro.
Nothing new to myself but good and clear explantion of a 3PH panel.
Thanks!
Halo bro
Nice presentation explaining the panel! Appreciate your time and trouble, and answered most of my questions too.
Very nice panel. I’m glad to see people take pride in there work
Thank you,I appreciate you taking the time to comment!
Thank you for this video, now I understand how the neighbors were able to hide how they were stealing power without causing overloads. Time to call the city inspector and the power company.
Absolutely the Best 3 phase video, great !
Great video, very thankfull for people like you that takes time to teach alot of people like me in 6 minutes, is awesome thanks alot sir !!!
Awesome video, you literally broke it down so simple and easy to understand.
What a video been looking for this for years. Thanks a bunch.
Absolutely.You would need 1-single or double pole breaker installed.
Wiring to your device would be hot,neutral and ground for a single pole and depending on your requirements you could run two hots to a motor,light or whatever. Always check your spec's before running any power.
There are many varieties of breakers and panels. 3 phase panels are built both plug on and bolt on styles. There are 3 phase load centers(plug on) and 3 pahsepanelboards(bolt On).You need to use the specified style breaker to match the type of panel your using.
Excellent. I'm a 1st year apprentice. This helped a lot. Thanks
I'm glad it helped,thanks for the comment!
I believe you broke it down to where it is very understandable, thumbs up Sparky. Thanks!
my father had installed a GFCI outlet in the kitchen. He wired it up, turned the power on, and plugged in the coffee maker, the bottom outlet worked fine, the top when plugged in tripped the GFCI breaker. So he broke out the manual, and found the wiring was backwards. turned power off, removed outlet, and wired it the right way. Works great now. Still goes to show. Even AC power doesnt have poles, (like DC) correct wiring is a MUST to prevent faults. I believe hot and ground was switched?
Thank you so much for making this video. You made my job easy! Thanks, Christina
Excellent video that simplifies 3 phase into laymen's understanding!
This was helpful. Best vid I’ve seen so far from you. Sharing info vids are best.
We are a third of our lives at work! How little we store memories from this period? In fact, I have tried to record some of the events on film and video! Use every opportunity and record the people on the job, working methods, in order to leave some memories to future generations. The time it takes an amazingly fast!
Honestly you did amazing. Best explanation.
I appreciate that!
this is awesome, apprentice here who mostly gets put in the suites I don't get to work in electrical rooms too often since the work is defaulted to Licensed workers
I knew about abc this video taught me where to land each one thank you
Wonderful explanation. Only small change, On a single phase step down
transformer ( Panel not shown) used for most households, only one phase.
"which is split phase" Thank you, of great information, although most of
us will never deal with this much power, which is 1.5 times more power
than single phase.
Awesome video. We're farmers that now have need for 3 Phase panel fed by a Phase Perfect Converter. Your detail was perfect - thank you. If you have video on phase converters I'd live the link.
Amazing how you explain everything. Thank u sr.!!!
Thank you for keeping it simple understand perfectly
@davec3487 Most of the installations I run across the motor starters are located near the motor.
All of the car wash's I work on have a MCC,Motor Control Center, located some where in the equipment rooms.
So really it depends on the application.
Outstanding video! Very well done. Thanks.
Well done. Thank you for thst. Answered all my questions. And thsts an impressive panel tie in
Amazing you explain it completely and very clear thanks for this information !! Good job
Thank you!
I find these useful and my degree is in EE. They are a good, quick sanity check after not using my degrees in decades and of course for EE I was concentrating on integrated circuits and signals and systems, not power engineering. Keep up the good work and ignore the criticisms that are out of wack.
@MyKamiloo Thanks for the explanation,it's cool to learn how the other country's outside the US wire their equipment!
hey this is a really good video. You explain it very well. Nice job.
Great information. Looking forward for more.
Makes sense to me now. Nice job breaking things down. Thanks!
Would really like to know more about the neutral and grounding and any special safety requirements. Maybe even a source to read about.Thank you
Great Video! Thanks For putting it together!!
After watching your video it seems to me as if you know your stuff. I am a do it yourself kind of guy, I haven't always been over the last 5 years I have started. I run a Restaurant and therefore i have many opportunities of fixing various things. I have an electrical issue in my parking lot, I will add a second comment for the rest.
100% THANKS!
Would there be a certain color code, say on the high side, coming from a delta feed?
Great video ! Practice will help you learn and remember
Also, I'm asking mostly from a theoretical standpoint, not necessarily whether unbalancing the phases will cause specific problems like burning your house down (I know it won't). And I know that the overwhelming number of boxes I've worked on had circuits both originally placed, and later added, without any sort of real forethought, so I know it is common to just pop breakers in wherever. Does it make a difference?
I love this video, is very informative and easy to comprehend,,, thank you
Finally a decent looking panel button-up on youtube! :)
It's quite different than European electrical installation. We have everywhere three phase (black, brown and gray), neutral (fair blue) and groun (green or green-yelow). There are one some phase (in left hole), neutral (in right hole) and ground in 1phase (230V) power outlet. There are three phases, neutral and ground in 3phase (230/400V) power outlet. Every diferent circuits are bad. It is interesting your wiring in America. Sorry for my English :)
Thanks,I really appreciate the feed back!
Great avatar!
Thank you . Some phases A B or C can be a high leg 220 . so i learn that the hard way in my younger years has a electrician. Test ur phases and breakers and circuits at all times before you plug or connect something. Doenst have to be just commercial. On high legs
Great explanation well done is there any difference if i want to put the red then black and blue .thanked you
Whoever done that panel.....👌👍.
Great explanation... keep up the awsome work.
Could you add a 3 phase breaker for an AC unit within the panel used in your video? Say in apartments that take single and two pole breakers. We want to add a 3 phase breaker to each panel for the AC unit?
What are the breaker configurations 1p vs 2p?Have you taken amp draws on all breakers or just the main? Balancing is done by relocating breakers to another phase depending on 1p vs 2p breakers. Balancing a single phase panel vs 3phase panel are 2 different animals.
How did this panel get to having a load difference?
200+ on line 1? What size is that panel?
THere is a little more to it but these are the basics.
Thanks for the explanation,. how 3 phase wires color code are connected to any 3 phase input equipment, if 1 or 2 color are different ? ... thank you . Tito
Great videos SparkyU. You think you can do some conduit bending videos too.
I would first test power at your service. Check fuses,turn off all breakers at your panel then test again. Sounds like it could be the main fuses or incoming power. R U using a quality tester? Let me know more.
Can you show the actual putting a breaker in... a video, as opposed to still shots. I want to see the breaker installed or is there a seperate breaker for for each of the 3 phases? I don't understand?
What's the purpose for the additional isolated ground bar in the upper left of the panel?
Could you do a video on how 3 phase, branch cct work?
Really like these videos, there isnt a whole lot out there that explains in detail on three phase panels / wiring.... Do you run into a lot of three phase with a high leg, or are most 3 phase 208 / 480 systems?
Where would the motor starters be located? Is it in a panel next to the electrical distribution panel, or by the motor itself.
Sparky, Hi, so I'm hooking up a baler that's 480 3 Phase, now i have 2 panels, one is a MLO to a MCB and it looks like they took 4 wires from a breaker inside the MLO that goes down to a transformer and from the transformer it goes into the MLO that has all the breakers for everything.
Now can i hook a 3 pole breaker for my baler off the panel or should go to the MLO (The MLO doesn't look like i should hook anything to it directly.
If you have a (stinger lead) say one lead is 208 and other two are 110 each. How do you lay out your breakers? Say I don’t need that much draw off of “C” bar do I just skip loading onto that bar? Additionally what could you run off of the stinger lead? If you had an oven you’d still need two leads of 110 right, can’t just have one breaker onto the 208 lead? Tks great video
just want to ask how do you do load balancing... Our supervisor sad that during Maintenance, Line 1 was reading to about 200+ amps while Line 2 was around 120+ amps... how do you do the balancing?? thanks
Great video,a questioncreated while watching this video is,if the busbars are not connected between each other,doesn’t every phase in that case work as a single phase?
Yes, but they are 120 degrees out of phase. In single pole breakers this is not important, but in double pole and triple pole this becomes important. You use a double pole for 208V, not 240 in this system due to that phase difference. And the same rules apply to the three pole breakers.
The breakers and the phase allow them to work together as if they were one continuous source of power to the devices on the line.
Great explanation of the subject, but I do have a question specifically about the MCB panel. I have a Siemens panel that looks identical to the MCB panel in your video, maybe a little smaller. However it didn't come with the white switch at the bottom, nor is there room or a location to mount one. How do I go about getting my power into the panel?
Any help is appreciated thanks.
Awesome video, keep them coming. Can you explain a splitter panel setup? I just went through intermediate for my apprenticeship. We did a lot of splitter calculations but nothing practical.
Sparky, if I have a 3 phase service panel and want to put in a 2 pole breaker won't the phasing be wrong for 220 appliance to work? Three phase is 120 degrees, single phase is 180 degrees out of phase.
Hello sparky, if hooking up hi-bay lighting that requires 208V from a 120V/208V 3 phase panel do I take both circuits off one phase?
I've got a question ? When testing a 3 phase panel I got a reading of 24v 120v 24v can you explain the circumstances this would happen? This is what I get from the Electrical room to my service panel?
I am trying to create a 3 phase panel, to run 4 electrical machine off of. Originally there is a single three phase coming in, and I want to split that off to 4 separate machines. I saw how you showed the 3 phase panel box, and this design looks similar to something that I need. Each machine needs to have at least 240 vdc coming off the breaker so that I can tie them into a transformer for each and which will step that 240 up to 480 that the machine requires. However, I have never made a spliter box before, and I need to know how this entire process is done CORRECTLY so that I will not destroy anything.
With 220/ 277 etc. you are pulling less amperage as opposed to a 120 volt circut. For example a circut on 120 volt may require 7.0 amps but on 220 volt circut the same device only requires 3.5 amps.
Is it most common for a (e.g 480Y/277) panel to start from left to right with the phase order of A-B-C.
Does the neutral wire have to be insulated in a 4 wire delta configuration? 120/240 3 phase service
Good video and very well explained.
Thanks glad you liked it!
I do understand the functions (sort of) between hot neutral and ground of home wiring. I know you cannot get them switched or else faults or a fire could occur. as i was younger i did mess with electrical wiring. ( blew the breaker a few times ), but still have a respect nowadays as an adult. IF YOU do not know what you are doing, DONT ATTEMPT IT. Electricity is non forgiving and your life could be ended. I blow stuff up with 110v sometimes, but always remember to make sure power is cut JIC
If I have 3 existing 220 single phase 4 wire outlets each with it's own breaker, is it safe to assume that all of those wires from each outlet come back to the main panel? In other words, would any of those wires coming off the outlet be tied to anything somewhere in the wall, other than at the breaker box, assuming it is to code? I am wondering if I can add a 3 phase subpanel, that would work off a digital phase converter that could use the existing single phase wiring to create a three phase outlet or connection? I obviously would have to find the appropriate neutral and ground wire for each outlet. Can you comment?
So is there a need to try to make sure that the individual breakers for each circuit are balanced out between phases, as best as you can, or could one put all 30 amp breakers on one phase, all 15 amps on another, etc. My understanding is that drawing more amps off of one phase would unbalance the phases, even if it doesn't have any practical effects in terms of causing problems, whereas my father says it doesn't matter which breakers go on which phase because it will all even out in the end.
Hey how do I transfer measurements from floor to a sloped ceiling if I don't have a laser? For like island lites need sometimes
During a power failure, is it possible for just one phase to go out while the remaining two are on, or would all three phases go out during a power failure?
What kinda machine is it? what is the amperage?Do you have a disconnect for it?Where is it located,inside or out?
Sparky,
what do you think about the SIMpull from Southwire.. a good system.. considering cost?
It would have been really cool if you had also detailed the wiring on this breaker by doing mock install of the wires into the terminals as you explained the panel. All n' all, great video.
i would like to learn more about motor and motor controls for instance delta? wye ? how do you connect them can you help with the type of questions that the nec gives?
Ok I'm not going to disregard American electrical standards but please tell me that their is secondary protection from the exposed 'Live parts' in your Distribution boards? Does the first board have a main isolator? To isolate the entire board? Maybe I'm mollycoddled to what I'm used too.
Thank you for sharing your knowledge.
Glad it was helpful!
+TheTechnonugget That's incorrect. Some forms of 3-phase have neutrals and some don't. 3-wire delta, which has no neutral, is standard in bulk power transmission. 4-wire wye, which does have a neutral, is very common in utilization voltage wiring in commercial buildings, e.g., 120/208V in North America. 277/480V 4-wire wye is also common where it is used to supply both pure 3-phase loads, such as motors and transformers supplying 120/208V, wired to just the three phases, and single-phase loads such as fluorescent lighting, usually connected between one of the supply phases and neutral for 277V.
4-wire wye is also common in medium voltage (e.g., 7200/12.6 kV) distribution circuits in most of North America; single-phase distribution transformer primaries are again connected between one supply phase and neutral. One exception is California, where all single-phase distribution transformers seem to be connected phase-to-phase, although a grounded neutral is sometimes carried for the shields of underground primary wires.
There's also a rather uncommon 4-wire delta system that carries three phases plus a neutral derived from the center tap of a transformer between two phases. This has the advantage of providing 3-phase 240V delta, 120/240V "split" phase and 208V single phase all on one distribution circuit.
Do you have afci breakers on a shared neutral?
Thank you for the clear explanation.
can you run red black blue and share the neutral for outlets keeping each leg on seperate legs so you dont over load neutral
Helpful info, thanks for sharing!