I Don't care how he spells as long as he is explaining the right thing and i understand him, thank you jean for loading this video better than not loading this video. and thank you tamas for extra information.
At last someone has finally told me how to do it and also the formula for the capacitor/power. I have been waiting for thgis all my 42 year working life. Very didactical and explicit like no one has explained before. Thank you.
To reverse rotation is enough to connect supply to other side of capacitor. Delta config ports from left: 1 - power (live), 2 - power (neut.)+ cap, 3 - cap = left rotation. 1- power (live), 2 - cap, 3 - power (neutral) + cap = right rotation. If configuration was changed to star You weaken motor substantially because lower voltage on winding section.
hi, your answer catch my attention, however i don't understand by what is 1. 2. and 3. which one of the numbering represent U1 V1 W1 or U2 V2 W2? could you explain it in basic form?
@@easywaycircuit9233 For 3ph motor running capacitor only. 380/400V star configuration motor should be ran on 220/230V with delta configuration and 150uF capacitor (50uF/hp or 70uF/kW). Remember proper type of capacitor (motor run type and voltage ratings).
When the motor is running, use a meter to measure the voltages between the windings. Change the size of the capacitor to achieve similar values between windings. Incorrectly sized capacitors can cause high voltages and damaged windings. When you have balanced the voltage across windings, like Jean said, it may be necessary to switch in an additional capacitor to provide sufficient starting torque. Like Tamas said, motor will not achieve its rated power. I need to check how this modification will effect RPM. Leave the terminal links in delta as at the beginning of the video. Just move neutral to the other side of the capacitor to reverse rotation. As per A I Reid below - use an inverter for best results !
interesting and verry usefull , i have a drillpress that i need a new condensator for this makes it easy to find the right one a few things i wonder about , does the voltage in the country matter when it comes to the amount of micro fahrad needed ? and if i have a 16 amp fuse at 220 volts i can use about 2500 watt safely (70 percent) without the fuse blowing as soon as you get a peak current draw at startup , will the wattage of the three phase motor be the same with this setup as it would in 3 phase or increase ?
Thanks to show as That refreshing my mind and what i mist I know and learning from a pro and how do you explaining to me is so wonderful thanks Go on with this greatest to helps the rockies thanks
If you need to run a three phase motor on single phase, get an inverter drive. This is an effective way and you will not lose any power as running on just single phase does. You get the extra benefit of speed control and inherent overload protection. While the above will run it's not good practice.
@KC JONES It's called a Vfd ( variable frequency drive on e-bay 80 quid in uk )or more common an inverter but proper inveters still use 3phz to supply Still need to be careful full as they Chinese and not all termination is correct you do need to understand electrical drawings if as if ya poke n hope you'll blow it and you up I had one was ok till got pinched had it running of a generator as well so full 3phz portable set up
WE DON'T CARE GOOD PRACTICE OR NOT. IMAGINE YOU ARE IN A JUNGLE, YOU NEED TO RUN THIS MOTOR IN ORDER TO SAVE LIVES. HE DID A GOOD JOB, STOP CRITICISING TO SHOW OFF
Freddo, we are not in a jungle. My advice was to give the best outcome and have a reliable machine that will work as designed. Bodging a three phase supply this way reduces power dramatically.
@@freddokuckelmann8502 *EXACT-A-MUNDO* reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
@@freddokuckelmann8502 *EXACT-A-MUNDO* reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
He just wired it wrong for reversing that motor, it will work but half the power of the other direction because he wired as delta for one direction and star for the other, the wiring is the same before but swap the phase and capacitor connection, now you have reversed the motor with the same torque, the capacitor value is approximately 8uf for every 100 watt of motor power, eg 60uf 1hp or 750watt motor.
Hi, this trick works for shot term. If you run your motor for an hour or two you will definitely fry it. Use a frequency converter or disconnect the capacitor with a simple switch right after the full revolution of the motor.
thank you for the knowledge. great video. only criticism i have is the capacitor wire you connected to U2 was wrapped on the post backwards. being an electrician you should always wrap the wire clockwaise so when you tighten the nut down, it will tighten on the wire and not try to push it out.
It would be nice if the diagram was a circuit diagram, also showing the alphabetic letters as they appear on the terminal box! Thanks for the video well done!
Yes, to reverse simply move Live wire from U1 to W1 and move the wire of the capacitor from V2 to W2 and the motor torque is maintained. working from his diagram at 4 Mins. 16 sec, in.
Don't know if I am using the wrong capacitors or what could be the problem and I'm plugging into my wall plug that's 30A should I run it from main box, the fan makes as if it wants to start then it just humz then when you put it of you can see it stops
if i have a 3phase motor with a power of 7.5k.. my asks.. can run it over single-phase as the method you explained.. even this motor need more torque for starts because it works on a cement mixer.
Hi... very informative.. i received a 3ph induction motor which was modded to run off 1ph but i see no cap and direction can be changed/chosen by hand spinning when startup... is it because of missing cap?
You are running in two phase. Cause your motor is 3phase. One phase is missing. Running this motor continuously, you will cause overheating and burn the motor winding. That is why you need this capacitor to compensate the missing phase in order to assist the missing phase voltage supply to the motor, and ease the torque rotation of the motor.
Hi, Thank you for the video. It is very informative. I did follow your step and it worked. But later the motor wont start anymore. Is it because the capacitor or what? Does the capacitor needs to be recharged or not? Please reply me. Thanks!
Hi Naufal If the motor is making a noise as if it wants to start then it might be the capacitor that is faulty. It does not need to be charged. It either works or fails. It might be the motor as well. A coil that fails can cause a motor to stop working completely. If you're lucky it could just be a loose wire...
@Jean B - Nice presentation style but you could simply move the neutral to the other size of the capacitor to reverse direction. Why conflate Star/Delta with direction change unless you are confused?
Hi In the US we have 2 hots to make 220v. I have a neutral and 2 hots, where would I connect the 3rd wire (perhaps Delta with live, neutral, live, and then start capacitor between neutral and live?)? Thanks
@@CrapInHell (1) Connect the 3 links for delta configuration like in the video. (2) Connect the 2 hot wires to any two of the motor inputs. (3) Connect one side of the Capacitor to the third motor input. (4) Connect the other side of the capacitor to one of the hot terminals for one direction or the other hot terminal for the other direction.
Thanks for the quick response! Do I not need to connect the Neutral line? Will it have enough power to just run with the start capacitor? Thanks again!
@@CrapInHell Leave the neutral open. I am assuming the motor is rated 220/400V, you have two hot phases 120 degree apart. We have single phase 220V hot and neutral 0V so its the same here except using the two hot phases instead of hot and neutral. The main thing is the voltage between the two wires is 220V
1 important thing that you have to know : If you convert a 3 phase motor by means of a capacitor into 1 phase, then the power of the motor will be reduced to approximately 1/3 of its 3 phase rated power. If you want to load this motor up to its original 3 phase power then the motor will be damaged (slowly burns), so you have to reduce the load on the axis of the motor to 1/3 power. Or else use an Inverter for your 3 phase motor but in this case you have to convert your motor into delta connection because the inverters from 1 phase to 3 phase unable to make higher voltage than theirs input voltage (it is equal to the rated voltage of 1 of the 3 coils of your motor).
How is it Jean B I have a 3 phase fan that I connected according to your video but the fan is just humming but not running I don't have a lot of info on the fan because no specifications on the fan it's self wondering if you could help me
😘 Yes i love pratical learning ,but i not under stand how you choose the capacitor size.But i like the video.Please i need how to choose capacitor size for different motors
Yes, correct, you can drive a 3-phase motor using a Capacitor like that. . . . BUT the value of the Capacitor will only be correct for one size of motor and also for only one specific speed or Power output on that motor.. . . These days, it would be better to get a VFD drive unit, which can change single-phase to 3-phase.
Well this achwelly workted and saved me 100 quid altho the motor workted perfectly in the first configuration (delta) but in the star configuration for reverse it workted but lackted aney power and ran verry slow
I did this on a larger motor but the capacitor started blowing out a white smoke. Do you know why this might happen and also do i always need a capacitor?
Star connection will give less torque - the function of star and delta is with respect to the line voltage/ motor rated voltage or using star/delta soft starting on 3 phase.
You are correct . It's that easy but he isn't aware so he changed the connection to star, which also changes the motor to a higher voltage thus causing it to loose considerable power though it's reversing . The last part of his video is wrong .
Hi Ebrahim Im down in Cape Town but I will start by contacting ECA (Electrical Contracting Board). They will be able to point you in the right direction.
Excellent presentation with content. Simple language. Easy to understand.
Damn, I've been looking in yt for someone who can decode this process for a quiet long time. Im glad ive found this. Thanks jean, you're new sub here
I Don't care how he spells as long as he is explaining the right thing and i understand him, thank you jean for loading this video better than not loading this video. and thank you tamas for extra information.
Always wanted to know how to do that. Thanks for sharing
Simulating, very well presented, and valuable solution.
Fantastic always wanted to do that. Brilliant my lad. From Phillip Roberts Zambia central Africa.
Thank you man, I appreciate the video. I'm sorted now
Top video and top explanation! Thanks and all the best. 🇬🇷👍🇦🇺
This is the best explained video I have ever seen many thanks 🙏
At last someone has finally told me how to do it and also the formula for the capacitor/power. I have been waiting for thgis all my 42 year working life. Very didactical and explicit like no one has explained before. Thank you.
Same thoughts here Michel.
What's the formula for capacitor selection
@@samueladegun8427 70 pr kw
I have 4kw 3 phase motor, so looking at the calculation, tbat works out to be a 280uf capacitor, have I got that right?
Why did he divide 70 microfarads by 10?
Thank you so much, this has been most helpful
To reverse rotation is enough to connect supply to other side of capacitor.
Delta config ports from left:
1 - power (live), 2 - power (neut.)+ cap, 3 - cap = left rotation.
1- power (live), 2 - cap, 3 - power (neutral) + cap = right rotation.
If configuration was changed to star You weaken motor substantially because lower voltage on winding section.
hi, your answer catch my attention, however i don't understand by what is 1. 2. and 3. which one of the numbering represent U1 V1 W1 or U2 V2 W2? could you explain it in basic form?
@@xtesster 1,2 and 3 are points of apply power: L1, L2 and L3 on typical motor terminal box description, it should be U1,V1,W1 row of terminals.
what kind of capacitor use ( starting or running ) and how many uf for 3hp 3ph connect to 1ph 220
@@easywaycircuit9233 For 3ph motor running capacitor only. 380/400V star configuration motor should be ran on 220/230V with delta configuration and 150uF capacitor (50uF/hp or 70uF/kW). Remember proper type of capacitor (motor run type and voltage ratings).
@@adamw.8579 ok thanks so i need to use running capacitor @ 150uf for my ( 3ph , 3hp/2.3kw , 4 pole motor ) right ?
When the motor is running, use a meter to measure the voltages between the windings. Change the size of the capacitor to achieve similar values between windings.
Incorrectly sized capacitors can cause high voltages and damaged windings. When you have balanced the voltage across windings, like Jean said, it may be necessary to switch in
an additional capacitor to provide sufficient starting torque. Like Tamas said, motor will not achieve its rated power. I need to check how this modification will effect RPM.
Leave the terminal links in delta as at the beginning of the video. Just move neutral to the other side of the capacitor to reverse rotation.
As per A I Reid below - use an inverter for best results !
I bought 25ùF for 0.37 kw
It's the right one ?
And can i connect in star winding? Without losing power?
ONE THOUSAND THANK YOU,FOR YOUR VIDEO ,MARVELOUS
Thank for showing the wire connections to use three phase motors. Peace
Hi Jean ..can you do a video about converting an alternator to electric motor ..
Ive watched alot of videos on the topic but you explain it so easy
Thanks for your sharing it with us. This is a great tutorial and very informative.
dl
THANK YOU. EASY TO FOLLOW.
WELL explained
interesting and verry usefull , i have a drillpress that i need a new condensator for this makes it easy to find the right one
a few things i wonder about , does the voltage in the country matter when it comes to the amount of micro fahrad needed ?
and if i have a 16 amp fuse at 220 volts i can use about 2500 watt safely (70 percent) without the fuse blowing as soon as you get a peak current draw at startup , will the wattage of the three phase motor be the same with this setup as it would in 3 phase or increase ?
Nice. Thx. Would have been nice to give values about amps and torque on 3phases vs 1 phase
Wow great video. Thanks for the information.
Thanks from SA, well explained, even a dummy like me can understand
Good One there. Well Explained.
So helpful another subscriber to you channel...cheers mate
Wow it's useful ☺️ thanks for upload.
Thank you for making another good video. Could you make a video on float switch connected to a pressure pump and motor.
Thanks for rough estimate of capacitor. Can I get the calculation for the accurate value of capacitor from any source ?
Thank you for the video. What is the biggest kW motor that this can be done on?
Thanks a lot, you are the best
Thanks to show as
That refreshing my mind and what i mist
I know and learning from a pro and how do you explaining to me is so wonderful thanks
Go on with this greatest to helps the rockies thanks
If you need to run a three phase motor on single phase, get an inverter drive. This is an effective way and you will not lose any power as running on just single phase does. You get the extra benefit of speed control and inherent overload protection.
While the above will run it's not good practice.
@KC JONES
It's called a Vfd ( variable frequency drive on e-bay 80 quid in uk )or more common an inverter but proper inveters still use 3phz to supply
Still need to be careful full as they Chinese and not all termination is correct you do need to understand electrical drawings if as if ya poke n hope you'll blow it and you up
I had one was ok till got pinched had it running of a generator as well so full 3phz portable set up
WE DON'T CARE GOOD PRACTICE OR NOT. IMAGINE YOU ARE IN A JUNGLE, YOU NEED TO RUN THIS MOTOR IN ORDER TO SAVE LIVES. HE DID A GOOD JOB, STOP CRITICISING TO SHOW OFF
Freddo,
we are not in a jungle.
My advice was to give the best outcome and have a reliable machine that will work as designed. Bodging a three phase supply this way reduces power dramatically.
@@freddokuckelmann8502 *EXACT-A-MUNDO*
reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
@@freddokuckelmann8502 *EXACT-A-MUNDO*
reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
wow...very simple explanation....
Hi Jean B, Your Great Video are gratefully appreciated...hope I can ask your opinion on Dc motor. Thank You & keep it up with your Brilliant Video!
That is amazing you are the best 👌🏻❤
Thank you man for always giving me coin
Thats cool, thank you.
good presentation !!
He just wired it wrong for reversing that motor, it will work but half the power of the other direction because he wired as delta for one direction and star for the other, the wiring is the same before but swap the phase and capacitor connection, now you have reversed the motor with the same torque, the capacitor value is approximately 8uf for every 100 watt of motor power, eg 60uf 1hp or 750watt motor.
Thank you. I thought the same, just swap contact points 👍🏾
Good Job!
Hello my dear friend, thank you for this sharing, very informative like big, fully watched from philippines👍🤝🙏🏼👏👇🏿👇🏿👇🏿👇🏿
nice video sir. helped me to answer my exam
Hi, this trick works for shot term. If you run your motor for an hour or two you will definitely fry it. Use a frequency converter or disconnect the capacitor with a simple switch right after the full revolution of the motor.
Probably the capacitor used there is for running, if it were for the starting it won't even start remember a this is a three phase motor.
Most Useful Thank you Regards Chris
Thanks for the video👍
Thanks! Much appreciated. Subbed.
Thank you sir..
thank you for the knowledge. great video. only criticism i have is the capacitor wire you connected to U2 was wrapped on the post backwards. being an electrician you should always wrap the wire clockwaise so when you tighten the nut down, it will tighten on the wire and not try to push it out.
OOOOHHHH MY GOD
great!! thanks for sharing!!
Yesssss. Tanking youu
Very nice video..,., excellent 👌
It would be nice if the diagram was a circuit diagram, also showing the alphabetic letters as they appear on the terminal box!
Thanks for the video well done!
Thanks Glenn Lopez for the comment! The crude diagram with the numbers as they appear on the terminal box start from 2:00.
@@p0we111 an how do you wire it up if you have a 6core wire
I have a Cleveland steamer with three phase but I only have single phase, what kind of capacitor should I buy? It is 208v three phase
Hi, thanks for the show. Question. Maybe you can show us how to run a three phase AC off 24v DC battery?
Without inverter, its impossible.
I though I was hearing a whistle on my house, then I notice it was your video haha!
pls what kind capastir n number you hv uesd runing or sitater?
Yes, to reverse simply move Live wire from U1 to W1 and move the wire of the capacitor from V2 to W2 and the motor torque is maintained. working from his diagram at 4 Mins. 16 sec, in.
Very good useful data
thank you sir for this vidio..
Lekka my bru... Dankie vir die video!
Can we get 120 degree phase difference between the terminals in this method?
thanks so much for this, please also consider doing a video on connecting a 3 phase inverter welder with single phase power
What type of resistor do I need if my motor spec sheet only gives the following : amps on lo voltage (220) 8.6 amp, cycles-60 , 3 phz motor.
great, what would be max size motor one could change, very interesting
Don't know if I am using the wrong capacitors or what could be the problem and I'm plugging into my wall plug that's 30A should I run it from main box, the fan makes as if it wants to start then it just humz then when you put it of you can see it stops
Thanks for sharing. One question, is there a kw range that this method can be used (not outside)?
Or maybe HP ranges
if i have a 3phase motor with a power of 7.5k.. my asks.. can run it over single-phase as the method you explained.. even this motor need more torque for starts because it works on a cement mixer.
Hi... very informative.. i received a 3ph induction motor which was modded to run off 1ph but i see no cap and direction can be changed/chosen by hand spinning when startup... is it because of missing cap?
Hi Andre.
Yes I will say that it is because there is no cap.
You are running in two phase. Cause your motor is 3phase. One phase is missing. Running this motor continuously, you will cause overheating and burn the motor winding. That is why you need this capacitor to compensate the missing phase in order to assist the missing phase voltage supply to the motor, and ease the torque rotation of the motor.
His demonstration is good
Hi Jean
Can you upload a video about on a centrifugal switch of a motor
Thanks a lot!
Outstanding video
that is a useful video thanks sir
Hi,
Thank you for the video. It is very informative.
I did follow your step and it worked. But later the motor wont start anymore.
Is it because the capacitor or what?
Does the capacitor needs to be recharged or not?
Please reply me.
Thanks!
Hi Naufal
If the motor is making a noise as if it wants to start then it might be the capacitor that is faulty.
It does not need to be charged. It either works or fails.
It might be the motor as well. A coil that fails can cause a motor to stop working completely.
If you're lucky it could just be a loose wire...
@@p0we111 Ok, thank you for your reply!
Much appreciated
Test capasitor pakai multi meter. Jika short atau putus ganti. Gunakan kapsitor non polar dgn teh kerja diatas tegangan jala2.
@Jean B - Nice presentation style but you could simply move the neutral to the other size of the capacitor to reverse direction.
Why conflate Star/Delta with direction change unless you are confused?
Hi
In the US we have 2 hots to make 220v. I have a neutral and 2 hots, where would I connect the 3rd wire (perhaps Delta with live, neutral, live, and then start capacitor between neutral and live?)? Thanks
@@CrapInHell (1) Connect the 3 links for delta configuration like in the video.
(2) Connect the 2 hot wires to any two of the motor inputs. (3) Connect one side of the Capacitor to the third motor input. (4) Connect the other side of the capacitor to one of the hot terminals for one direction or the other hot terminal for the other direction.
Thanks for the quick response!
Do I not need to connect the Neutral line?
Will it have enough power to just run with the start capacitor?
Thanks again!
@@CrapInHell Leave the neutral open. I am assuming the motor is rated 220/400V, you have two hot phases 120 degree apart. We have single phase 220V hot and neutral 0V so its the same here except using the two hot phases instead of hot and neutral. The main thing is the voltage between the two wires is 220V
Awesome. Thank you so much for your help, very much appreciated!!!
Good work👍
so I have a 4kw 3phase motor, as far as the calculation goes the capacitor I need is a 280uf, to run 240v, have I got this right?
Great ,but does the power and speed changes
Thanks a lot for knowledhe
Please when you look at the speed, will it be the same as compared to connecting it to a 3phase supply.
Thanks
Hi master, i have 220v, 1Hp, 60Hz, 3.65A. 10mfd is okay to use?
Good information thanku
Good old south african booytjie. Thanx from PE
Good info.
1 important thing that you have to know : If you convert a 3 phase motor by means of a capacitor into 1 phase, then the power of the motor will be reduced to approximately 1/3 of its 3 phase rated power. If you want to load this motor up to its original 3 phase power then the motor will be damaged (slowly burns), so you have to reduce the load on the axis of the motor to 1/3 power. Or else use an Inverter for your 3 phase motor but in this case you have to convert your motor into delta connection because the inverters from 1 phase to 3 phase unable to make higher voltage than theirs input voltage (it is equal to the rated voltage of 1 of the 3 coils of your motor).
Tamas sapi - that was going to be my point I will add that the start up torque will be even lower
Koszonettel a helyes informacioert. Hajra magyarok!
@@lariannetoth9493 Köszi! Szívesen segítek, ha tudok.
You mean Variable Frequency Drive on inverter?
@@leiladaquil6587 Yes, I am.
How is it Jean B I have a 3 phase fan that I connected according to your video but the fan is just humming but not running I don't have a lot of info on the fan because no specifications on the fan it's self wondering if you could help me
Thank you for your help me👍👍
Well explained
Thank you for the expa
Thank you.
😘 Yes i love pratical learning ,but i not under stand how you choose the capacitor size.But i like the video.Please i need how to choose capacitor size for different motors
He already said 70 microfarad for every 1kw motor. So do the maths.
Yes, correct, you can drive a 3-phase motor using a Capacitor like that. . . . BUT the value of the Capacitor will only be correct for one size of motor and also for only one specific speed or Power output on that motor.. . . These days, it would be better to get a VFD drive unit, which can change single-phase to 3-phase.
Well this achwelly workted and saved me 100 quid altho the motor workted perfectly in the first configuration (delta) but in the star configuration for reverse it workted but lackted aney power and ran verry slow
I did this on a larger motor but the capacitor started blowing out a white smoke. Do you know why this might happen and also do i always need a capacitor?
Where did you get that little 3-phase motor it's really tiny
:) Must have been from a machine. Tabbacco factory closing down if I remember correctly...
I have a 1.8 kw pump three phase. Can l run it on single phase or its too big? And how big the capacitor?
Please how do you select your capacitor for such work.
Star connection will give less torque - the function of star and delta is with respect to the line
voltage/ motor rated voltage or using star/delta soft starting on 3 phase.
Thats what he said!
Hi.
How to model a single phase motor? Why it doesn't self excite?
Can you swap the Capasitor wire from neutral to live teminal in the delta format to change te rotation?
You are correct . It's that easy but he isn't aware so he changed the connection to star, which also changes the motor to a higher voltage thus causing it to loose considerable power though it's reversing . The last part of his video is wrong .
Thank you boss
Hi Jean
Do you know of a good institute in Johannesburg where I can learn to be an electrical technician
Hi Ebrahim
Im down in Cape Town but I will start by contacting ECA (Electrical Contracting Board). They will be able to point you in the right direction.
@@p0we111 thank you so much. Really appreciate all the great videos you put out🙏
nice work