The 2 most common voltages in the US are 240 and 460v. I will be doing vids on 3 phase as I get equipment. Thanks for the support. GFM

Awesome video and project,one of those"why didn't I think of that" moments.

Brother, that is too cool. I can not thank you enough for what you are doing. KEEP UP THE GREAT WORK....

@grayfurnaceman

6 жыл бұрын

Thanks for the support. GFM

Just got mine built & tested today. Works great!

@grayfurnaceman

6 жыл бұрын

Glad you got it. GFM

Another excellent video! Years ago before you tube and online sources, I thought you had to purchase an expensive phase converter to be able to do exactly this. I passed up a nice 3ph compressor for cheap years ago that this setup probably would have run. Thanks for taking the time to make this and all your fantastic videos!

True, however, the cut off switch is very accessible. Good point though. Thanks for the comment. GFM

I’m building a converter now. I’m using a giant 10 hp electric motor I salvaged out of an old industrial Varian Vacuum pump. For my starter motor I’m using a large DC motor and speed controller salvaged out of an optical polishing machine. I also salvaged all of the switches, capacitors and breakers and relays from machinery that my company scrapped out due to age. I used such a big motor so i can drive multiple pieces of machinery in my shop. I’m going to run the output of my converter into a small sub panel in my shop which will then be hooked to all of my machines. I cant wait for it to be done. Been a lot of fun getting all of these different components to come together as a whole new machine.

Great data good presentation!

I really preciate you taking the time to create this very informative video!!! I know that a fairly large number of creators try to exhibit their higher learning techniques & abilities, Whe in actuality it's usually nutt'n more than fluff to fill the creator's short orchestrated dance hall production!!! Thanks again, Joe C.

I wish we had that here. Much more efficient. GFM

That works by using a capacitor to the 3d winding, thus using the 3d winding as a start winding. When the motor starts, the winding is dropped out. The only time I ever tried that, i think the backfeed from the controlled motor blew out the capacitor. Not really sure why. This system is used because it is simple and pretty much bullet proof. Thanks for the comment. GFM

That was awesome!!!!

The way I look at it, "run what you brung" Thanks for the comment GFM

I owe to you man thank you very much!!!

The described method of converting single to 3 phase is a rotary phase converter. There are converters that use one of the 3 phase windings as a start winding and use a start cap to start the motor. Then it runs mostly on single phase.

A friend repairs welders and checks them with 3 phase converted this way. It is best if you can use the single phase circuits for the controls and only use the converted line for the main transformer. That eliminates some of the voltage variations of the 3rd circuit. Yeah, I know about the safety issues with the lathe. Hope this helps. GFM

Good job, it took me a few minutes to understand what you were doing, At first I did not understand why you did not include the wiring of the separate starter motor, but then I realized that including it would have been more confusing. Nice job as usual.

@kengamble8595

7 жыл бұрын

AAHH ! ME TOO ! 💡✔

Each line is 120v to gnd. Between the 2 is 120X2 or 240. I will be doing a vid on power panel design when I get a chance. Hope this helps. GFM

Wow! I never would have thought of that but, it makes perfect sense. Great video as usual!

Are you using a coil as an inductor to store power? GFM

You could certainly do that. Probably the simplest would be a mechanism that loosens the drive belt, but go for it. GFM

My father got himself 3 phase in his garage including a transformer to get from 208V to 600V. All for less than 3k while Hydro wanted 60k to bring it in.

@nickcrimi9657

3 жыл бұрын

Canada.....🤦‍♂️smh

I agree! GFM

Interesting - nice videos

Thanks, hope it works for you GFM

Beautifully done video,, Solved my problem,, Thanks,, I redrew your picture for you

@grayfurnaceman

8 жыл бұрын

+ECO SHAH Welcome GFM

@jaguar8706204

8 жыл бұрын

+ECO SHAH can you send on to me your wiring drawing cheers

@grayfurnaceman

8 жыл бұрын

+steve bird man The diagrams are in the video. GFM

@luismash9199

6 жыл бұрын

Help. How can I connect single phase power source to 3phase 380v motor 2.2kw

This is interesting. 😀

When you look closely, I think you will find the idler motor is just that. It is not under a large load and does not overheat. Overheat is, after all, the measure of power loss. GFM

I dont know if you can get a big enough run cap to start the motor. And yes a start cap must be pulled off after about a second. But again simple is what we are trying to do. GFM

That is great! I am learning allot from your videos. I was wondering since I am a newbie in tech school, what is a common three phase voltage used in the industry? And are you planning on doing a intro to three phase video in the future? Thanks again.

Can you make comparison between this rotary converter versus modern 3 phase VFD. What are VFD limits, would it run your lathe just as smooth?

Ive seen/heard of this a few times. For people not too savvy with electric motors I highly suggest buying a phase converter, pretty much does the same thing but can be professionally installed.

@grayfurnaceman

5 жыл бұрын

Actually, phase converters simply use a capacitor to energize the 3d winding in order to start the motor. Then the the 3d winding drops out when the motor starts. The motor runs on 2 windings. When you use the 2 motor system, the 3d winding is energized. What this means is the motor operation is balanced and the amp draw is spread between 3 windings instead of 2. Its a better way. GFM

So simple its genius. That's what makes it genius.

@dalekify

4 жыл бұрын

Where's the neutral?

I worked in a shop with 3 phase for 15 years. When we lost a leg, say a fuse went out , sometimes we left the motor run until we got the replacement. But if you shut it off then you all know that you can't restart it. 50 years in the trade and sill learning.

@grayfurnaceman

10 жыл бұрын

You could do that but the motor will have to run all the amps through the 2 working phases and if it is close to full load, it may trip the overload. GFM

@joemc111

10 жыл бұрын

grayfurnaceman You are correct. Now that I think about it what I was talking about was say a conveyor with 5 or 6 motors, If we lost a phase the conveyor would keep running. Joe

You will need a 3 phase motor of approximately one and one half times the hp of the motor you want to drive. A 1/4 to 1/2 hp start motor to start the larger motor. Belt and pulleys to drive the start the motor.

now things are geting easy

I just uploaded a vid covering the wiring at the motors. Look for: How to connect the wires for the single to 3 phase conversion Hope this helps. GFM

@grayfurnaceman

4 жыл бұрын

All good info, thanks. GFM

great setup these osha safety forman wanna be's would crap if they seen mine. my starter motor is on a hing with a lever to pull the starter back to tighten the belt and once the motor takes off push the lever forward the belt jumps offand ur good to go haha

361,000 views and only 624 likes?! Ungrateful folks out there. Thanks for the content. I like to be the tech who knows what im doing. When i tell people about this method, they are blown away by how simple it is. Hope youre having a good weekend!

@benmarquez9338

6 жыл бұрын

Ryan Malin .. True facts! I never would have thought of this myself. Clever

I have a friend that repairs welders and I asked him. They will work. I would not guarantee perfect operation. If you can wire it so the third phase is not used for the controls and is only used for the main transformer it works best. Also different brands work differently. Yeah I know about the safety issues. Hope this helps. GFM

Get a modern electronic Phase Shifter. Small, clean, safe & quick. Done!

@grayfurnaceman

8 ай бұрын

You forgot expensive. GFM

@Ratridez

6 ай бұрын

@@grayfurnaceman Paid $300 for mine good for up to 7.5 hp , my lathe works fine ................

OK. Phase converters that I have seen are not converters but start capacitors with a start relay. The motors done this way that I have seen are actually running on 1 phase. This system uses the 3d winding and has "fairly" even amperage.The motor used here cost $20. That's because used 3 phase motors are cheap. The start motor is from an old furnace, picked up for nothing. If you don't like my "dangerous" belt arrangement, use a coupler. This is a simple, cheap and effective 3 phase. GFM

@possumdan1

3 жыл бұрын

give me your em, i'll send pics and explanation.

@grayfurnaceman

3 жыл бұрын

@@possumdan1 Grayfurnaceman@gmail.com Thanks GFM

I have a friend that repairs welder. He tells me that this will work ok if you don't use the generated phase on the control circuits. The voltage in this phase will not be high enough to operate the controls. Hope this helps. GFM

Hi there from Mr Nick Wiese: I really appreciate your efforts here on 3 phase, It might help others to understand if we called our house power what it really is in the USA, it is called single Phase(1 hot leg) & single Phase 220(2 hot legs) it is actually (double phase) and you are adding one more Positive leg for 3 Phase, they all should add up to 360 volts in a house system of 200 amps or 400 amps. if the 3rd leg is off a bit so what?, as the motors magnets do not care! of course there is Delta or WYE motor wiring to be considered, Thanks again Mr. Wiese

@bobvilla7230

6 жыл бұрын

Nick Wiese ummm....it depends on the windings in the motor too mr. DUMBASS

@grayfurnaceman I'm gonna wire up a 3 phase welder using this method! it should work right?

It does come off sometimes. GFM

Well Done. can i do test run on this. i have 240 Volt. 50 Amp Commercial convection oven. would i be able to run if i have this motor? or what kind of three phase motor should i get. thank you.

Would it also be possible to have the 15hp 415v motor and 240v starter motor set up remotely with a female 3 phase plug connected to the 15hp 415 v motor so that multiple 3 phase machines could be plugged into the female plug (at different times of course) instead of having the set up hard wired to only one 3 phase machine? Thankyou

Fine, if you don't need a neutral. Or, if you don't mind a neutral that isn't anywhere near neutral. Older machines tend to need a neutral. They have old, weak insulation. I use a single phase motor to start too. And to start my 3 phase motor I connect to 2 legs. 1 live and the other neutral. But when it's up to speed, I take the neutral from the second leg and connect it to the neutral on the motor. (the star point) I then have 2 generated legs and a solid neutral. I hope this helps you. I wish you well.

And finally, using this system will there be any considerable loss of power or torque to the motors from the 3 phase machines? Thankyou once again

Late to this topic. I built mine with a time delay relay and motor start capacitor which is common in motor start circuits. The ship write starts his idler motor with a rope and pulley. If I need to build another converter I would use this method as you can easiley start a larger housepower idler motor.-Jay

@grayfurnaceman

7 жыл бұрын

That also works. This is just a little simpler. GFM

@jayreiter268

7 жыл бұрын

I see I worded my comment unclear. I meant the method you show is the way I would go if I have to build another. The rope and pulley is a little to hands on. There should still be used 3 phase motors out there to use as idlers. I think that commercial built converters might have capacitors to correct for stray reactive / inductive loads. But that would not be noticed unless the converter causes line problems bothering neighbors. --Jay -- You know I think any 3 phase machine running in parallel if light loaded would act as an idler. that might be what the guy below is talking about.

I take it that switching the direction of the driven motor direction is as usual change any two wires with connections with a switch? Thanks for the money-saving tip! Again!

@grayfurnaceman

4 жыл бұрын

Yes. The application shown has a reversing switch that works normally. GFM

I looked at this vid again and noted I said exactly the same on all 3 phases. Not so true. When the motor has no load, 3d phase is very low. As the load increases, the amp draw of the 3d phase goes up but will never be exactly the same. Still, you can run at least 80% load without overheating. Sorry about the bobo and thanks for the comment. GFM

Nice video please let me know how to wire up i want to power up my 3 phase motor to run my milling

can you give us the details on how it connect to the three phase converter motor on how he work the other three phase motor.

I had a full shop of 3ph. sold most, regrets, will this work to run ,my 3ph welders? Gee you have no safety standards(smile) I hate lathes that do not have a foot brake Love the belt guards. Thanks for this

What I'm thinking of doing is buying a cheap Harbor freight gas motor, machining a connector that connects the spinning shaft of the gas motor to a 3 phase motors shaft, and running the power from the 3 phase motor that is being generated to a welder that only operates on 3 phase. Basically, I'm just making a welder/generator combo, but I'm not sure if I'm missing anything. Thoughts?

sir does the rotary phase converter is the same with the single to three phase converter

could I run a 3 phase 2hp motor 220 volts horizontal bandsaw that has a smaller 0.5 horse water pump that turns on with a switch?

Sizing of the 3PH generator motor isn't all that critical. Example: I have a 3PH Bridgeport mill at home with a 1-1/2 HP motor. At the time, I didn't have a large enough 3PH generator motor so I hooked everything up using a 1HP 3PH generator motor to generate my 3PH. It worked bcuz I didn't make heavy cuts with the mill. Even tho the generator motor was too small, there was no problem bcuz I didn't load it to capacity. Loading is the significant factor in sizing of ANY motor.

Is something such as a starter (contactor and overload protection) advisable? Thanks for the help!

@grayfurnaceman

7 жыл бұрын

I never argue with someone who wants to install overloads. GFM

I wish i had seen this video before i spent over a grand on a rotary phase unit...

Hi, can i use this on 600 volts equipment ? Best regards

Hi,whats the max speed you get on your lathe chuck ? Does the chuck slow down when you have load on it ? Thanks

@grayfurnaceman

9 жыл бұрын

MBG-TECH I haven't checked the speed, but there is no slowdown under load. This type of conversion gets higher torque as the amp draw increases. GFM

Hahahaha you're a genius... What great solution you're telling about

I'd like to see a amp meter on all three legs, im having issues with a rpc now not drawing the same across all three

How will this work on a miller mig welder cp 250ts

if you put a capacitor across to the third leg, it will self-start and should also run more efficiently. I had a system built with like this 35 years ago using a 25 hp 3 PH motor as the main motor. It would start 3 Ph motors under full load and direct online. For the hour at a time I used it, I could run it to 40 amps at 500 volts input driving up to 3 times 3 phase motors plus the main but never more than a steady 40 amp draw’ the main motor was wired star and the rest delta.

@grayfurnaceman

9 жыл бұрын

Gavin Davis The capacitor method does work. I will do a video on it when I get to it. GFM

@georgefenrich4119

8 жыл бұрын

+grayfurnaceman ?? Driving and Driven ?? and OUT-PUT?? more details please ... the two L1/L2 are the IN-COMING POWER ? (with breakers) Right? then the two motors. you drew them both the same size... Just a little more detail please and show output to ... what you are running. THANKS G

@aaronrush7031

5 жыл бұрын

Is there a resource that explains this more in detail or could you please upload a more detailed description? Also if using a capacitor instead of a starting motor what size does the cap need to be. Is it in relation to the driving motor requirements?

why not use the Steinmetz connection to start the 3-phase helper motor?

OK, start at the beginning. what do you not understand?

The speed of the pilot motor is not important nor is the rotation. It is only to begin the 3 phase motor rotating. Once the 3 phase motor is rotating reasonably fast it will start running on its own when power is applied.

Normally, reversing a 3 phase motor is done by simply reversing any two motor wires to the source. You will not have full load torque or speed by running a 3 phase motor on single phase, but it will run...but not at the rated load, however.

Hi, I have a Elliot pillar drill 3 phase, motor packed in, if I replace with a single phase with capacitor, then will my reverse switch still work, or is it better to put a 3 phase motor back on so that I can use forward and reverse, Thanks, and your video are great.

@grayfurnaceman

9 жыл бұрын

Hornetwind The reverse switch will not work with 1 phase. You can get reversing single phase motors, but it will require rewiring. Hope this helps. GFM

@circletree

9 жыл бұрын

grayfurnaceman to reverse a single phase motor swap #5 and #8

Weight is not a bad thing on the slave motor. It helps to smooth out power losses from the third leg being generated. Think of a flywheel.

Can we use smaller idler motor for bigger motor load and fine tuning with capacitors?

@grayfurnaceman

Жыл бұрын

I have never tried that. GFM

wher can I buy that motor

Is your 7.5 HP generating the extra voltage needed to run your 5HP lathe with load?

@grayfurnaceman

7 жыл бұрын

Yes. GFM

Would the small "pilot" motor need to be the same RMPs as the three phase one or could it be different?

@joshgrand799

Жыл бұрын

This is what I'm scouring the comments for as well

Would it be worth fitting some sort of one-way clutch (sprag/roller) between the starting motor and the gen-motor? This would reduce the power waste caused by the gen-motor driving the starting motor once it picks up, so reducing excess heat as well.

What would happen if you will connect the pony motor in to the running circuit with the selector switch instead of turning it off after start?

@grayfurnaceman

2 жыл бұрын

Why? GFM

I have a very old 3 phase motor, with three black wires (unmarked) sticking out (am unsure which go's where)that would be used as the slave motor with a smaller 110,3/4 hp , starter motor, and would I still need the capacitors ????

@grayfurnaceman

8 жыл бұрын

For this design, capacitors are not used. GFM

Silly question what happens if you make em both work against each other then flick the 3 phase on will it destroy the single phase ??lol

sir .. can you help me.. i want to construct a single to three phase converter as my resaerch project

maybe you used a start capacitor instead of a run? different duty ratings usually.. you could also just switch in extra capacitor(s) momentarily to start the idle motor

Would it be beneficial to add a Run capacitor parallel to L2 to Driver motor or just leave it ?

@grayfurnaceman

Жыл бұрын

Leave it. GFM

I do have a stupid question though what keeps the 3 phase motor running after you turn the smaller starter motor off ? I must have missed something lol- I'll try and find the wiring diagram that might help me to under stand it. Really Great Idea!!!Never gave much thought about making my own power that's pretty cool!

@grayfurnaceman

10 жыл бұрын

Once the start motor gets the 3 phase motor turning, the 3 phase motor generates the 3d phase to keep it running. GFM

@gnif

10 жыл бұрын

What is occurring is the 3rd phase is not energised on the primary motor. All the small motor is doing is giving the larger motor enough inertia to spin past that de-energised phase, the small motor can be turned off because the large motor is now self sustaining with the two phases that are energised + the inertia. The third phase is now being generated by the large motor which is being used to power the lathe, along with the other 2 phases.

@nickgc1234

5 жыл бұрын

yes but are all the phases coming out of the energizing motor 415v 3 phase if so what happens to the 240v connected surely it will blow the thing if its generating 415v with the 240v connected .

could I use a centrifugal clutch on the 110 motor,as the three phase motor seems to speed up when power is applied ??? ( my machine runs good) the only part I had trouble with was third wire becomes a common between both motors or the third phase and the outer casing of three phase motor is grounded

@grayfurnaceman

7 жыл бұрын

You could of course. Do you want to complicate that much? GFM

Did you let the small motor run after the big one started running if not how long

@grayfurnaceman

6 жыл бұрын

No. As soon as the big motor has started, shut it down. GFM

good video. can i test run three phase 240 Volt commercial convection oven on this? the oven drow 50 Amp

@grayfurnaceman

8 жыл бұрын

+Ermo Tess As far as I know, yes. GFM

@ermotess8688

8 жыл бұрын

+grayfurnaceman i'll give it a try. thank you!!

So once you turn the small motor off, is the big motor powering itself? Or taking 220 volts from the house?

@grayfurnaceman

3 жыл бұрын

Well, if it did, I would have invented perpetual motion. The small motor starts the large motor because it will not start on single phase. Once it is up to speed it will continue rotating on single phase. GFM

@600gleable

3 жыл бұрын

@@grayfurnaceman Still that is an outstanding thing you have done, I need 208 volts at 100 amps to charge my 27KW battery backup system power company didn't want to bring in 3 phase

I do things my electrician says can't work-- I currently run a 30 hp 3ph motor (Vaccumn pump)on single phase with no idler -just capacitors 125 -20 mfd run caps for start and balance L1 and L2 with about 120 mfd with a 91 amp,82 amp,86 amp balance on 238 volts have sequence the caps with relays on start up-- been running this for over 10 years, also running a 16hp cnc router with only a 2hp idler

were is the reversing switch in the circuit do you just change any two of the actives ?

@grayfurnaceman

6 жыл бұрын

The reversing switch is mounted on the lathe that is being powered. You can switch any 2 wires. GFM

@ozloon2000

6 жыл бұрын

thank you there are three actives you transpose two of them it is not in your circuit

If I get a 230v idler motor, will it run a 220v machine, also the idler motor will be 5 hp I intend to run a 1.5kw basically 2hp machine will I have issues?

@grayfurnaceman

2 жыл бұрын

You will be fine. No difference between 220 and 230 volts. GFM

Hi Gary i have a nice 15 hp air compress 3 phase. I need a compress in my home shop that does not have 3 phase. I will not use the compress a lot. If i could get a 20 hp 3 phase motor would your conversion method be practical? Is the electrical consumption (KW) any greater? I understand that the 3rd phase is missing in the 240 single phase source motor so the 3rd phase is produced form the field that is not energized so it produces it that is why a 30% bigger production motor is need to satisfy the operating smaller 3 phase. What is the concern sense the air compress will start under a load? In advance THANKS, david

@grayfurnaceman

10 жыл бұрын

Generally I have seen the motor should be 1.5 of the motor you want to operate. There is some loss because you are using an additional motor. Now for the problem. The larger motor must be running when you start the compressor motor. This means you either have to have the larger motor running all the time you want the compressor or you will have to rig a smaller motor to start rotating the larger motor when there is a call for the compressor. Hope this helps. GFM

Good Stuff. Would you ps clarifiy the following point with me as I am in Australia. Are you ultimately running your 3 phase generator with any Mains feed from your Energy Provider ? I was thinking that you were using the initeria from your 3 phase generator to produce 3 phase power (for your lathe) as well as utilising 1 phase in parallel to back feed your single phase motor (after you have disconnected it from your Mains feed). That was why your needed a 3 phase motor 1.5 X greater than your load duty. However, I now feel that you are using the single phase motor to bring your 3 phase generator up to the correct RPM, turning on your 2 pole circuit breaker to feed and run only 2 poles of your 3 phase motor on Mains Power as well as partially using the third (generated) phase to run your single phase motor - after you have switched the single phase power line from your Mains. Your welcomed thoughts please. Well done again.

@grayfurnaceman

9 жыл бұрын

Paul H The idling motor is operating from single phase. If the motor is brought up to speed, it will run on single phase. The 3d unconnected phase becomes a generator and is available to feed the lathe motor when you need to start it. I think I am saying the same as you. But the main is never disconnected. Let me know if I have not answered your question. GFM

little uncertain about the drawing : here 3 phase is N(bleu) /L1(brown) /L2(white) /L3(black) to get single phase 220 volt 60 hrz here you need one of the L's and the N or zero the drawing you showing uses L1 and L2 are you using two phases to make 3 phases or could you use a phase and a zero as whell ? reason i ask is because i only have one phase and the zero entering the house

@grayfurnaceman

7 жыл бұрын

There is no neutral involved. All lines are hot (240v). This is for US power. GFM

@tylerpeterson2343

5 жыл бұрын

watahyahknow there is no neutral when a single phase motor is wired for high voltage, because hot to neutral is 120v.

Dear Sir GFM...from what I understand in your diagram...the driver and driven motor is in parallel in their three terminal,two of the leads of the driver motor is directly connected into single phase,turned off from supply at certain speed. The lathe motor which is three phase is directly connected to the three leads of the driven motor,is that it? The driven motor is 71/2 Hp,lathe is 5HP...how about the driver motor? I've seen this set up at a local machine shop,and I am impressed by the design. But took me a while to ponder about it,your videos made it clearer for me... But still I have lot's of questions. Thank You Very Much,for sharing you work.

@grayfurnaceman

9 жыл бұрын

Mark Anthony Nilo The 2, 3phase motors are connected in parallel. The driver motor that starts the 7 1/2 hp motor is small, 1/4 to 1/2 hp. Hope this helps. GFM

Hi GFM. I have a wood planer with 10hp 415volt three phase motor. The power to my garage is 240volt single phase and the fuse is rated to 20 amp. If I understand correctly I will need a 15hp three phase 415volt motor and a single phase 240 volt motor. I will plug the 240 volt motor into mains power. This motor will be connected in parallel to the 15hp 415volt motor. In turn this motor will be connected to the 10hp motor on the machine. When I turn on the mains power the 240v motor will spin the 15hp 415v motor which will generate the third phase to the 10hp 415 volt motor on the machine. I have two questions. First will any of this system likely burn out the 20amp fuse of the mains supply? And secondly once I turn off the 240v power to the 240 volt motor what keeps supplying power to the 15hp 415 volt motor?? Thankyou

@grayfurnaceman

8 жыл бұрын

If you don't have 415 volts, you cannot make this work. If you had 415 volts, you would have 3 phase already there. GFM

So I went ahead and gave this a shot and I checked the amperage on the three legs. After shutting off the power from the single phase motor, I was showing 6 amps on two of the phases connected between the two three-phase motors that were also connected to line one and line two but only 0.6 amps on the phase that was powered via induction. The two three-phase motors ran but seems like it would burn them both up after a while. Any ideas what I could be doing wrong?

@grayfurnaceman

3 жыл бұрын

Your readings are correct. The amp draw increases as the load increases and it becomes more balanced. In any case, unless you are drawing maximum load, the motors should be ok. GFM

@CounselorsinChrist

3 жыл бұрын

@@grayfurnaceman Thank you so much for the information. One last question. Can an ECM motor be used as the three-phase power?

@grayfurnaceman

3 жыл бұрын

@@CounselorsinChrist I guess you could try, but I think the electronics would shut it down. GFM

@CounselorsinChrist

3 жыл бұрын

@@grayfurnaceman If I give it a shot, I'll let you know how it goes. Thanks again!

Person I worked for had and when not un use the three phase would turn meter backwards