How to Build a Rotary Three Phase Converter with details & parts Urgent Read Description if Building

[@maxprophet2401]

Fangernail scared me a bit, told myself it was just a you tube prop. Watched again with that in mind and realized it wasn't yours. Informative vidgy!

[@dizzolve]

Me Too!

[@matttradie1341]

Yeah I was all ready to tell him to cut his fingernails cause he looks like a Chinese opium dealer. Lol then realised it wasn’t his lol

[@stephendavis891]

hahahha i thought he played the banjo or something

[@stephengordon8968]

I thought he had girly hands at first

[@LizasLoft]

Me too, I almost gagged.

[@michaelmurray3422]

Best build I've seen yet. Would have liked to see it running.

[@chrisz8141]

Check out the part two. Fixed a couple minor issues and ran it as it was, and with the updates.

[@L_A_N_G_D_O_N]

Great video. Just moved and I wanted to watch a refresher video before rebuilding mine. Just what I needed. Thank you!

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@grahamcrosssr1005]

Unlike some I realized it was your wife holding the part. Nice job.

[@theblade9024]

Or his mistress.

[@paulkuipers8024]

It was a great video The 2 5 on the relay had us thinking.

[@peterdenman607]

Good morning Chris. I have just had my retirement workshop built. Now I am about to build myself a converter using your video to do this. I am in England, does this mean I need to adjust any voltages?. My pony is 10hp. You are without doubt, a first grade teacher, with a good teaching voice, this makes you super easy to follow. Power to you Chris God bless PETER.

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@redaxe77]

I’ve watched a lot of videos on this and built a very rough one myself. I think you did a good job. I am getting ready to actually build one that I’m proud of and am going to figure out run capacitors to balance the legs. - anyway - thank you for sharing- I ordered the Potential Relay from Amazon last night. Thanks for the tip 👍🏽

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@metalworksmachineshop]

Thanks. Best video I've seen so far. Even though you lost me half way through it. I think you did well enough for me to make one. I'm going to video my build as I build it.

[@lp.670]

MotorHead Garage do you have deep pockets because running a idle motor will eat your money up.I know been there done that.check out jomasterhn running 3phase 7.5hp on single phase.and in the next video I will show how it done with just compasters

[@metalworksmachineshop]

I found a bad industrial air compressor with a 15hp motor. Paid 50.00 and have 200.00 ish in the panel.

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@c.r.hoodheritagefarms8825]

Finally someone posted a simple and easy to understand vid on this. Great job, thank you

[@jeffcannedy4684]

its not simple, he has it wired one way and quoted numbers another way. the red wire line one he says goes to number 2 but he has it hooked to number 5

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@TimeLine111]

Pretty Good one more step near finishing my Time Machine, LoL Thanks Brother very instructional educative video.

[@N4JAB]

Probably one of the better explanations I’ve seen with the different colored wires for visual. Some others I’ve seen used 2 additional capacitors to “balance the load” so I’m not seeing what application that is needed for.

[@chuckgilbert2035]

To balance the 3 different leg voltages for stable power between legs

[@karnecazaken6847]

You should make schematic diagram for the easy way to follow your viewers...for what you explaining all about..!💪👍

[@daniloaurelio4849]

Qq

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@HeritageStoneworks2]

gotta get my head around it again,,,Thanks for the video

[@simonmarogy7642]

It’s the best video I have ever seen thank you

[@MrSleepProductionsInc]

Be curious to hook up a 3 phase power analyzer to this just to see what kind of power your getting out of this. 🧐

[@rickrohn7793]

Thank you, this is exactly what I was looking for

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@michaelduquette4463]

If I don't use the breaker set up would I just wire nut the the two breakers together( red to red, white to white) and continue with the diagram you have layed out?

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@orlandarriesgado654]

Thank you.. you did a good video to share it to others. Wanted to do the same thing.. nice video my friend.. i need to save it for my future projects.. ty

[@rovillien]

Sooo many videos!!! finally one the keeps it simple i cant believe i understood this :O

[@abeg8563]

Thanks for the information.

[@fredgeitner713]

I built one from a 5hp motor I got out of a dumpster. I got capacitors to start and to balance it from old metal halide light balasts and it uses a potential relay similar to yours. It has been started and stopped hundreds of times and run for hours at a time and has never given me any problems. The only thing i noticed is the current at the generated leg is always low, so i dont think my machine tools are up to their full rated horsepower, but i have never had any power problems and ive taken some heavy cuts. I have a 10 horsepower motor also from a dumpster, which i intended to build another larger unit from , but it hasnt been a high priority. Nice job on yours.

[@goodfortune6399]

Thanks for the great info I was just wondering about the cheap Chinese switch how is it holding up? All current to the 10hp motor plus whatever equipment you run is going thru it. Im thinking about using a blade type switch

[@goodfortune6399]

Nvm I just saw your update vid😁

[@chrisz8141]

So far so good. No problems.

[@wendelllatimer4146]

I just bought a 3 phase rotary converter made Kronk and inside they have a whole bunch of capacitors and this is for a motor that is 7.5 hp.. I get what you are saying in that the start capacitor is only to get the 3 phase generator up and running then the relay switches it out but if it were that simple why then professionally made converters have a bank of capacitors? One reason I think is to smooth and balance out the 3 phase coming out of the generator motor.

[@dripschoetmer]

I'm confused as to how L1 & L2 get to the 2nd circuit breaker. Can you show that? Other than that, GREAT VIDEO. Thanx

[@raulsantana3009]

Hello friend, good morning, I have a question. In the white magnetic switch, 220v comes from the input, does that same power the black magnetic switch? Or where are the 220v of the white magnetic switch connected?

[@johnle1465]

Chris - thanks for sharing, I'm wondering why 's the CB Left-Black 30A and CB Right is 50A? Is Black-L1 & White-L1 connected?

[@chuckgilbert2035]

He called them both L1&L2, I figured they had to be connected, the CB are triggered off so as he stated they are just being used to connect wires. I also agree this build needs balance with run capacitors for my application.

[@thomascannady3855]

Will it be possible to make one of the use? It would run 2 or 3 machines at once if so please tell me how to do this.

[@chuckgilbert2035]

Run yes. Just not start all of them at the same time.

[@timweatherholtz7082]

What a great video..Thank you...

[@superiorparty-gt1xy]

Can you please explain why you need a 10 HP motor? I've got a 7.5 HP 3 phase motor that I want to make a rotary out of.

[@chrisz8141]

You can use the 7.5 to make one.. I'm not sure if you will be able to start a 5 horse motor with it though.

[@tomsparks3259]

Did you ever look at the power with a scope to verify the output phases were properly balanced and 120° apart.

[@jaspermcconnell6417]

I see no info regarding the connection between the two breakers. I can only assume they connect thru a common electrical connection in the mount.

[@keithmartin1627]

Great video. Simple easy to understand and to the point.

[@boltonky]

Really want to build one of these but i will need a step up transformer or if i was dodgy connect it to the mains line which is 3 phase when our house is single but i wont it gets checked to often...and they want 10k to upgrade my power if only it was my house lol i would run all my equipment

[@electromechanicalstuff2602]

put a volt meter on your legs bet they are at least 25 volts different from each other. U need to add run caps to balance it.

[@George-hl3qj]

He never ran it

[@bobjohnson6371]

Thats my problem, where would i add the the run caps ?

[@marcosarriaga2278]

electromechanical stuff , so this would work but it would work better if it has a run cap?

[@darcymunro8930]

I like your understanding of the electrical problem with the system and trying to teach and help ,Than others missed the whole point of the exercise and more complaints on his fingernails!Their Dumb Down education and Narrow mindedness was shown.

[@1KnowWearMan]

Where in the system should the run caps go... and how do you determine how many / what size run caps to use?

[@omm7763]

Interesting build. You stated in the video the big part of what is needed is the switch. And the switch that you had was 3 Phase. A Three phase switch on single phase has 2/3 amp rating. The switch you are using only has a 10 amp rating, sooo now 6A. A three phase motor requires 1.73A Single phase of what’s written on the nameplate. I’m just guessing, 10 hp 220 V three-phase motor will draw about 29 A. So almost 50 amp single phase. Then that passes through to a plug to run another motor. Let’s say it’s a 5 hp. That switch needs to be rated for 50A Single phase min or if it is a three phase switch it should be rated for about 75A. That potential relay you have is not rated for the amperage either. It should have an amp rating on it. 800 µF switching on your start capacitor has an amperage range of almost 70 A. Make sure you keep it all in that metal box, when you let the magic smoke out.

[@George-hl3qj]

better of using a coil and a single 1 phase 110 vac coil controller switch. There you can handle real amps. Good idea , more money to add to this thing. The thing I do not like is that I have to waist a motor just to create the 3rd leg but I have a friend who is an electrician and he does it a different way only with caps but he does not want to show me how to because he sale those for 500 plus instalation

[@al9094]

If he doesn't want to show you he's not much a friend. A friend would give you a parts list and offer to sell you the parts .then volunteer to help on the weekend as long as there's cold beer .

[@chuckmatson7255]

@@George-hl3qj What your electrician friend is making is a static converter. they are not hardly worth $500. he must be quite a salesman lol.

[@zackstrassburg8325]

Soesn't work that way. A 35 Amp switch is rated for 35 Amps across all it's contacts, doesn't matter how many of the contacts you're using, each is good for rated current. Until you understand Ohm's law you probably shouldn't be giving electrical advice.....

[@justinkemeter]

Oh took me a second but I’m thinking you take a 3 phase motor, get it started using 2 phases and a capacitor, shut the capacitor off, then continue running with the 2 phases(or split phase however you look at it) and then use the motor as a generator off the 3rd leg to develop the phase needed to match back up with the original 2 phases(or split) in order to develop 3 different phases. Sounds pretty neat but seems that you wouldn’t have balanced phases. Just 2 opposite phases and a third one offset. Why not have 2 motors, 1 phase motor running 240volts with pulley to a 3 phase motor, then use 3 phase leads as a generator to supply the correct balanced 3 phase power?

[@justinkemeter]

Ok I guess I was right, here’s a good link to a video that explains it if anyone was interested. kzbin.info/www/bejne/o4a7fauBlN98aJY

[@patmcalister5307]

The potential relay is not one size fits all. The continuous voltage rating, the drop out voltage and the pickup voltage is different on different motors. The potential relay also has the wording "Top" or "This side up" on it. This is important for the relay to operate correctly each time it's switched on. When you described the capacitor, you didn't mention the voltage that was stamped below the Mfd's. If you installed a 120 VAC capacitor on your setup, it is too low a voltage and should be at least 230VAC and 330VAC would be even better and not much difference in price.

[@stevenhall9020]

Great work! Appreciate the insight.

[@moturcu4226]

3:40 Thanks ma'am.

[@HailAnts]

My brother has a similar setup. Was wondering how much cooling does the 3-phase idler motor need? The motor is extremely loud just from the fan, would a smaller fan be practical? His idler motor is 10HP and the stuff he runs of it is only around 5HP.

[@walterg4025]

What are the specs for the best choice 10HP AC motor to build a rotary phase converter?

[@JeremiahL]

Great video

[@Rob-Heaston]

Thanks! Good video

[@ebayollis]

Would this exact setup run a lathe with a 7.5hp motor?

[@chrisz8141]

No probably not. That would be a little to big.

[@haimdathsookdeo201]

this was very informative thanks

[@1966cambo]

Have you tested voltage outputs on all 3 legs? What about amps?

[@Monkeysic]

Do you need to use a 10hp motor? I am running a 10hp 3 phase motor but have smaller 3 phase motors to use for my phaser. Or does it have to match hp for hp?

[@David-hm9ic]

The source/generator motor should be twice the HP rating of the load motor.

[@alchemy1]

Here is what I did, the most simplest 3-phase motor in the world. Each pair reads 220 Volts.. Take one of them LG washing machine BLDC motors that people just throw out because people don't know how to fix their washing machine or any other washing machines that use them motors. Toss of the Hall sensors, you won't need them. Now you have the three wires that are there. Install a pulley on that outside big old drum rotor using another motor, be it 120 or 220 or hell if you don't mind the noise run a gas engine. Whatever you do. You will find out that them three wires that are hooked up on the stator of that motor will give you nice and even three phase power. The horse power you expect is the horse power you use with the engine turning the damn thing. There is your three phase supply. These motors are obviously delta phase. If you want Star/wye, it is easy as pie. Just take the drum out and rewire the stator to wye configuration in 10 minutes. Cheers.

[@1KnowWearMan]

I'm not an electrician so I'm as confused as I am curious.., If you didn't have those breaker already, would you / could you have just used some kind of bus bars or power distribution blocks?

[@michaelszczys8316]

I’m pretty confused. Hard to follow. Using those breakers for a place to park and clamp the wires is fine but when you’re trying to figure out how it’s hooked up they make it extra confusing. Should have made a big schematic drawing to show first.

[@ericerana1360]

Hello sir can you give a detailed discription. to we have a 3phase motor 220v 2hp motor. are power supply is single phase can you help me thank you.

[@brianlucas7604]

So, do you have 400 volts out of the plug?

[@Lifeissofunny]

Can you pllllllsss put more info for this one

[@TheLaboy9999]

Awesome thanks

[@kevinbeitz1469]

At time 5:40 you said the red wire goes to number 2 on the relay ... Could you check that. I think it's number 5...

[@getithowyoulivemikeg]

Is that a 3ph or 1ph motor connected to the phase converter to switch say shop power from single phase to 3ph for a 3ph motor on a machine?

[@Welcometofacsistube]

Michael Garner three phase

[@williamsr1988]

Does the motor have to be a certain kind of motor? Other then just the HP rating?

[@CentralArkansasHomesteadandOff]

It's gotta be a 3 phase motor. Probably a 480v.

[@diontaka257]

Informative good work mate

[@ionxchang3182]

Ur awesome thanks for taking the time and making the video...

[@nickgc1234]

I a little confused I have 240v single phase and i want to run a Tyre balancer it is also digital display and runs on 415v 3 phase. it needs all phases out 415v and then runs through a transformer on the mother board. Now would this work on this??? Nick

[@ericksonhermo]

The 415v will be the supply voltage of the motor, 220v on your control board. Your electrical requirements will be 3 phase wye 415v common neutral . Neutral and line will be 220v. Electrical provider on your place will put same specs transformer. But expensive .

[@ericksonhermo]

I think, your unit has vfd ,power source input 3phase and neutral and your motor is frequency driven.

[@ericksonhermo]

Rotary phase converter will do, if your motor is 2hp, use 4hp as pony motor, check your 2hp motor if it is dual, if dual, set it to 220v, your 4hp must be also dual, now both 220v, your pony motor output will also be 220v 3ph on your 220v single phase source. The transformer is a stepdown , check the power req of the control board, if its 220v, remove the transformer. Just tap your power source directly.

[@silverbullet7434]

Your three power legs won't be even powered, you will need some capacitors to regulate the third leg voltage. Relays don't regulate the power output. . You should try for even output on all three legs spikes can damage some three phase items.

[@ronweber4508]

Did you say you went from 110v input and it has 220v 3 phase output for 3 phase motors?

[@jaspermcconnell6417]

What he said was each leg was 110 and there are two legs hence 220.

[@boulder89984]

Get a voltmeter on that thing. You are not going to have a very hot stinger. Add run caps and get it up to 165ish from hot to ground. If you balance it right, you can run a 7.5 alone or 12 HP in fractionals. Or 10 HP with a 5 and the rest fractionals.

[@tahirmahmood3214]

Quick question ........ so after all this once its done can we use multiple three phase machines through the outlet ????

[@dunbartuason5443]

only start the machines one at a time, but be sure the breaker in your main panel can handle the total machines running including your 3Ph Converter

[@ronalderbst2357]

the breakers have me confused ,,I have all the components less breakers, Do you have a simple diagram less the breakers ?

[@beautgrainger147]

ronald erbst It sounds like the breakers are fulfilling the role of a connector block in this build.. (I'm not expert - built one as a teenager, and am now doing research to build another). I believe that a decent practice regarding breakers is to put one at the output. There's a 3 part video on another channel which includes a bit on selecting balancing capacitors, and which mentions a breaker.. Most of the information is in the first video.

[@jfroux1]

Hi thanks for this video. I'm planning to buy a 5HP compressor that works on 575 volt and I'll need to build a phase converter. Can I buy the same parts that you bought for your 10 HP rotary 3 phase converter?

[@jeffsims7386]

Somebody can correct me if I'm wrong here, but I believe this only works if your motor can run in low voltage (208v-230v). You have to realize you're trying to run a three phase motor on single phase power, but you still only have 220v-240v to work with. Industrial motors are often made to run on three phase with either high or low voltage (480 or 208-230) with high voltage simply providing lower amp draw (coils are split providing less impedance). If however you have one only intended for high voltage, and 575 sounds like an odd voltage to run, then I believe you're stuck buying a new motor. Definitely check if it has a wiring diagram on the name plate, it may be possible to wire it for low voltage and use this kind of setup to convert off of single phase, and it really isn't difficult to do the wiring. If we can't help via PM or something there is plenty of info in forums across the web. If the motor doesn't have a name plate, see if you can find any info online that may indicate whether it can be wired high/low.

[@brucebellows7772]

Here in Canada 575v is our standard 3 phase industrial voltage. We step it down to 460 with a transformer when we have to run an American machine or we change the motor to a commonly available 575 v motor.

[@draganarc0131]

Jeff Sims you are correct, you only have 220 3 phase coming out. To get to 440 volts you will need a step up transformer. Here in Canada 575 volts is the most common in 3 phase. I have a 15 hp convertor with a 15 KVA transformer to step up to 575 volts and its working flawless for years now and used every day. An interesting side note, you should have 50% higher hp rating on your convertor then the biggest motor you intend to run but you can run up to 3 times the hp rating of your convertor at the same time providing they’re not starting at the same time. Each motor returns some power back into the system. I’m regularly running 35 hp on my system.

[@mrgreenswelding2853]

I assume you have 2 phases, how does this work with 1 phase live neutral and earth?

[@draganarc0131]

Mr. greens boat tanks and aluminium welding single phase 220 comes from two 110 hots that are 180 degrees apart. Aka standard single phase house supply.

[@chrismiller8421]

Wouldn’t want you welding any boat I own... 2 phase🙄

[@johanstassen9165]

Hi, if i want to use this on a 220V house, how do a get a neutral for 220V, i will split my phases in my DB box but i need the neutral, thanks

[@Monuments_to_Good_Intentions]

Johan Stassen you cant sorry. You can find good info on phase converters a practicalmachinist.com

[@syedahsanturabzaidi2449]

hello dear my rotary connector is not working when i change it will work just 30 mints and then damage what the issue can you help me

[@dunbartuason5443]

Where is your RUN capacitors ?

[@car9167]

Something is wrong. Your input is 240 volts coming in 3 wires. Between each live wire and ground you have 120 volts. Between the live wires you have 240volts. Your ground wire goes to the box and to the motor for grounding and there is no current flowing to it. So you power everything with 240 volts. The starting capacitor helps shifting the single phase 240 volts 90 degrees so it creates an artificial 90 phase. THe motor gets powered with the mains 240 volts and through the starting capacitor (and running capacitory) with another 90 degree shifted phase. When the motor spins it inducing voltage in the third wire/phase of the motor. I noticed your capacitor is 110v. I think it should be rated 270V or higher unless you're powering the motor with live 1/ground -> phase one and live 2/ground -> phase two 90 shifted with the capacitor. But then you have to show your motor wire connections since you're powering the 110v lower section and collect on 220V higher voltage.

[@blackfoxbackyard1156]

It is working on a line to ground system..?

[@nickgc1234]

Hi there I'm trying to build a rotatory phase converter to run my three phase tyre balancer it has digital display. ive got 240v single phase. with under 1hp motor and a 415v transformer in it. i have a new three phase motor 2hp 415v. I have it running on 240 volts with a cap to start. its wired in star but when i take a reading from each leg IE l1 l2 l3 they only show 192v each. do i need to put it in delta to get the 415v or is this right? hope you can help Nick

[@ericksonhermo]

Check the specs of your tyre balancer motor if it is a dual voltage, maybe 240v/415v, if dual, set it to 240v , its two wye or two delta parallel connection, your input single voltage is 240v, then you will get same voltage, just balance it with capacitor to get good result. Now if not dual type of motor, use step up transformer... 240v primary , secondary 415v, your 415v pony motor will now output 415v .

[@ericksonhermo]

Also check your pony motor if it is also dual voltage.. need also to change it to 220v.

[@ericksonhermo]

And better make it delta connection.

[@nickgc1234]

@@ericksonhermo hi thanks for the replies. So are you saying the idler motor in Delta? The balancer has a 415v transformer in it. Both idler and balanced can run on 220v or 415v. Can you tell me on each leg of the idler motor ie L1 L2 L3 what voltage should I be getting. That would help a lot thanks.

[@ericksonhermo]

@@nickgc1234 what i am saying , first check your idler or pony motor, some motor is dual voltage, 220v low voltage or 380v or 400v high voltage, you need to select the correct voltage,

[@750iV12]

I have a 10 hp motor that I want to run, what size motor will I need to run on the rotary converter?

[@draganarc0131]

750iV12 you should run a 12 hp pony motor. You could get away with a 10 hp but if you were to start it under load you may have a problem. Definitely need to add run capacitors to this setup for equal leg voltage!!!! It will work the way he has it setup but your powered motor will NOT have full hp and WILL burnout quickly. Add run capacitors in the third leg until you have equal (or at least close to) voltage in all 3 legs. This is a fantastic foundation. Cheers.

[@wonderswords]

typically you double the motor size of the converter for largest hp item you want the converter to power, aka bridgeport 3hp, phase conv. 7 hp

[@jackebeling4224]

I finished my 10hp. Now I'm looking to build a 20hp. Do you have any recommendations for capacitor and relay?

[@JustSnapper]

75mf per hp

[@George-hl3qj]

1st of all thanks for the video is very helpful. I am a little confused at the end when you said that you start up that motor on the 3rd leg with the capacitor but...there was no 3 phase power before been generated the 3rd leg. So correct me...does the motor runs of only 2 legs all the time to generate the last 3rd phase out out from the motor to be able to use it on the output as a full 3 phase outlet?>

[@rondo1rocks]

Hmm, had an electrician give me a hard time when I said 3-phase as he said there is no such thing as 3-phase. I turned to him and said, "I guess you have never worked a concert or stage show before."

[@kevinbeitz1469]

You also got number 5 wrong ... Number 5 is on the left .

[@daddywoofdawg]

confused, is both breakers hooked together? I see the wires go into one set of breakers, but they come out of the other set.

[@thegingineer8447]

The bus bars the circuit breakers are mounted on connect them together behind the scenes. These are the bars that normally bring the main power in and split it off to each leg. He's kinda using them backwards here, but it works.

[@raymundobatrez4351]

What outlet is he talking about I need to build one for my 10 hp compressor motor

[@allenweider1733]

outlet would the wires to the compressor The wires going to the out

[@iPleadTheFith]

I see you had the start capacitor, but don’t you need a run capacitor?

[@frankmartin6126]

Several of them

[@larryallen8214]

Liked your video could you use a 3 or 5 hp motor because I just have one 3 phase lathe

[@littletanksfelpro]

this is the build you want then, you have a 50% loss on start up, as a rule of thumb. 10hp to start a 5hp. or so i have seen repeated over and over, hope this helps you mate.

[@DavisWeddi]

Hi Zoglmann, how can I get this done/built for me? PSE get in touch

[@bambangirawan6011]

what kind of dynamo is used by the converter sir

[@finegerai2917]

Hi, thanks for the video. Just to confirm, is the 10 hp motor three or single phase?

[@dunbartuason5443]

The Motor is a 3Ph to run the 3rd power supply the other 2 comes from your house panel

[@madelineireland6236]

what size capacitor would I need for a 50hp induction motor? do they carry correct size for that or could one link multiple ones for correct mfd? also the motor I want turned to 3 phase is 460v so would one look for only 460v capacitor or?

[@frankmartin6126]

First, you'd need 460 single phase incoming volts. I've seen it, but it's rare. Second, you'll need 12ea 20mfd,660vac,caps hooked in parallel , 6 each 400mfd 250vac start caps, 2 sets of 3 in series and those 2 sets hooked in parallel. Then relays and contactors to take the start caps in and out of the circuit. Sound complicated? It is.

[@chuckmatson7255]

@@frankmartin6126 First you build your 220 volt phase converter to output 220 volt 3 phase, then run THAT output thru a 3 phase step-up transformer for 460 volt 3 phase output.

[@ncut5547]

How many volts is the motor

[@gnbaird1123]

You didn't mention how to wire your donar motor. How it gets 220v single phase and how you tap third leg to go into the box.

[@George-hl3qj]

he never said delta o Y conecction inside I lost

[@nickgc1234]

Hi there Im trying to build a rotatory phase converter to run my three phase tyre balancer it has digital display. ive got 240v single phase. with under 1hp motor and a 415v transformer in it. i have a new three phase motor 2hp 415v. I have it running on 240 volts with a cap to start. its wired in star but when i take a reading from each leg ie l1 l2 l3 they only show 192v each. do i need to put it in delta to get the 415v or is this right? hope you can help Nick

[@lmsaltest]

I don't see any phase/leg balancing capacitors...

[@markreardon3472]

I also wondered about this as having balanced voltages is especially important for cnc and other sensitive equipment.

[@aaronb4677]

will this run a delta wound motor or just y wound

[@chuckgilbert2035]

Not sure you got your answer. I too am researching about how to figure out if my motor is Delta or Star

[@zombieprinting2670]

443 subs with 1 video? pretty good. I thought you need a few run caps in there as well? No?

[@paulbirchfield3333]

You don't have a drawing on that do you

[@1362johnson]

Pretty decent job buddy. But that's just a starting cap. That has absolutely nothing to do with that third leg. That third leg is coming from the spinning motor running on 2 phases. To get your voltage equal you should have 410 horse about 170 microfarad from leg a to your third generated leg and also 170 microfarad from your B phase to that third leg. That will get all your wine he's pulling and eat equal or at least more equal voltage. I will shut up now. Good job.

[@ernelpurio5694]

Can I have a diagram of that please....from Philippines.. 😊

[@jeffcannedy4684]

You have number 2 and number 5 wrong you are calling number 5 number 2 and number 2 you call number 5 do you have it wired the correct way and just miss quoted the numbers

[@josephorehuela7821]

Schematic diagram sir pls.

[@shawnkraycs3172]

Did you have to install the outlet if you are only running the motor?

[@raulmccai6027]

That what you have there is a static converter isn't it? the title says ROTARY but it's not - at least I see no rotary component. And in a rotary unit the third generated leg is always being generated by the rotary component (AKA the 3 phase motor used as a generator). Also you didn't discuss the MicroFarads needed per HP of motor for the cap.

[@eonwagoneer]

.... What do you think the three phase motor sitting next to it is? That's the rotary component. He said 75-80mfd per hp.

[@raulmccai6027]

My mistake then

[@pay1920]

You didn't pay attention PAUL, please watch again and listen......

[@George-hl3qj]

lol

[@George-hl3qj]

The motor on the back does a dual function is the driven motor mo is also the driver motor. 2 legs been driven by your electrical 220 and the 3rd generated to complete the missing phase used as a driver or output power having all the available power needed in the circuit at the outlet. Basically that motor is just to create the 3 phase outlet. You will be better of buying a VFD Variable frequency drive. One single piece of gear do all and you can control speed and % output.

[@joekahno]

Just a couple of tips. If the red wires connected to the breakers are on one buss and the white wires are on another, SAY SO! Better yet, throw away the breakers and use wire nuts or a terminal strip so we can see the physical connection. Next, if you're going to talk about terminal numbers for a component show us the diagram. At the very least, put the camera on a tripod. I could pause, take a screen shot, then flip the label on the relay right side up, if the camera would just HOLD STILL long enough for the auto focus to catch up and give me a couple clear frames to work with. Last, pick one wire, follow it from the line in to the outlet including all connections in sequence. Don't pick one leg of a 220 pair, start calling it 110 without any explanation, follow it as far as a breaker that you're not using as a breaker, then take off like a dog spotting a squirrel to tell us about the ground connections, before returning to the same colored wire connected to a different breaker you also aren't using as a breaker... It was a good attempt. I can't follow a script either and you have a much better voice for narrating this stuff.

[@David-hm9ic]

Unfortunately this didn't get the response it deserves. I had the same issue with the white breaker on the right with its single pair of wires to/from nowhere. I'm assuming it's connection over the busses but that should have been clarified. It wasn't addressed in part 2 either. I understood the bit about 110V in the middle of a 220V discussion but I'm sure there are plenty of viewers that may not understand were 110VAC comes from. Overall it's a good set of videos but too many things are not fully explained.

[@johnrogers3936]

Aren't the 2 legs from the 220 180 degrees out of phase instead of the 120 degrees in a true 3 phase cycle? Wouldn't this cause issues?

[@marcwert2180]

My question also. And what is happening to L1 and L2 that your 220v ac compressor wants to see 180 degrees out of phase.

[@dunbartuason5443]

Once electricity runs through the circuit ( motor-panel voltage) it will take care of the phasing automatically.

[@tommccord7082]

is your motor single phase?

[@red66chevy]

it wouldn't work if it was. rotary phase converters use a 3 phase motor running on 2 phases to generate 3rd phase. ghost phase