Mr. T
Well-known member
Everyone is just guessing until the OP posts a pic of the motor nameplate.
200 HP electric motor
- Thread starter Tracs
- Start date
^^That's a genius idea, I didn't even think of that one!
Once I get my own three phase air compressor, I'm just going to run an extension cord from my neighbors house to get the 3'rd phase!
Depending on the feed to the neighborhood this could work with 2 other neighbors!
William....
I assume the 200 hp might be the shock point. I have worked with some 200 hp motors and they are 3000 pounds. I assumed there was a little bit of a typo. Maybe he meant 20 hp.
I have a 3P 20 hp Motor that I can start on 40A 1P that powers a RPC. I believe that motor is 190ish pounds.
The motor nameplate states 48 A. It is a little confusing single-phase 120, single-phase 240 and three-phase 230, three-phase 460, three-phase 575–600. And sure, at one point I think you told me I couldn’t run a particular pedestal grinder that was 600 V in my home garage shop. It’s been up and running a long time.
I assumed the typo of 20 hp. I further assumed this by a 200 horse power motor would be absolutely ridiculous 3000lbs. and furthermore based off his 60 amp question on hook up. Furthermore, at 200 horse power motor would shadow a 60 gallon air tank. A 200 hp motor would have a name plate of close to 500 A at 230 V and 250 A at 430 V. To start a 200 hp motor from single phase 240 V it would require almost 1000A for about 30 seconds. No Single phase breaker would hold this. This is why I assumed the typo.
Edit; my last post was to encourage seeking expert help and/or to flip the motor and buy a plug and play. At no time was I intending a potshot post.
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wyliesdiesels
Well-known member
Youre wasting your time.
Its most definitely not a typo and most definitely a joke thread.
You missed the previous thread thats why youre lost.
OccupantRJ
Well-known member
I need to move a Bridgeport milling machine from one side of my shop to the other. I plan to use the factory supplied lifting point, so the mill will be suspended in a pendulum fashion from a HF cherry picker.
Plan is to mount a 3 phase motor on the mill table and run it to act as a stabilizing gyroscope during the move. I assume I will need to buy a VFD to power up the motor? I could then later use the VFD/motor combo on something else like a powered bicycle or something.
Question is do I need a 2A51138 pulley on the motor to increase the gyroscopic effect for more stability? Or would a 1A51138 work better due to less mass? Would a 1725 rpm motor or a 3450 rpm motor be better for this application? I assume the faster motor due to the gyro effect.
I would be able to adjust the table in the X/Y axis to accurately dial in the balance point. I think this would cancel out the swinging of the mill during rolling across the concrete for the 18 feet 6 inch move.
I would set up a power festoon cable system to power the motor during the move, and also use the soft start feature of the VFD to prevent initial wild swinging of the suspended load.
Does this idea seem that it would work well? Thank you for your most esteemed opinions. Any local help available during the move would be appreciated. A couple of members don’t live far from me.
Plan is to mount a 3 phase motor on the mill table and run it to act as a stabilizing gyroscope during the move. I assume I will need to buy a VFD to power up the motor? I could then later use the VFD/motor combo on something else like a powered bicycle or something.
Question is do I need a 2A51138 pulley on the motor to increase the gyroscopic effect for more stability? Or would a 1A51138 work better due to less mass? Would a 1725 rpm motor or a 3450 rpm motor be better for this application? I assume the faster motor due to the gyro effect.
I would be able to adjust the table in the X/Y axis to accurately dial in the balance point. I think this would cancel out the swinging of the mill during rolling across the concrete for the 18 feet 6 inch move.
I would set up a power festoon cable system to power the motor during the move, and also use the soft start feature of the VFD to prevent initial wild swinging of the suspended load.
Does this idea seem that it would work well? Thank you for your most esteemed opinions. Any local help available during the move would be appreciated. A couple of members don’t live far from me.
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mike93lx
ALLIANCE MEMBER
no need to waste your money on a VFD. just plug the motor into three different sockets...viola! 3 phase power. if you need to adjust speed, just kink one of the cords
Definitely go with the 2 pole motor. And change max frequency from 60 Hz to 400 Hz. That'll get you plenty of gyroscopic effect, and probably allow you to push the mill across the shop with one finger
Miss the Pontiacs
Well-known member
A green powered option is what is required. Bicycling is good for your health and assists with developing a good stroke. A good stroke is essential in compressing air. See pics for application.
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sberry
Banned
That is near genius. So hard to store 120v but air is another matter. Could be improved a bit with a 2 stage comp.
strutaeng
Well-known member
I wonder how many calories are need to make this little tank reach 120 psi? The guy needs to take advantage of gearing. Start on "high" gears and switch to "low" gears as pressure is built up and resistance increases?
No need for the gym!
PugetDude
ALLIANCE MEMBER
That's the high-speed two-stroke model, produces 12VDC and compressed air at the same time. You can tell it's the high-speed model by the cooling fan on the alternator.
Miss the Pontiacs
Well-known member
I’ll be damned your right.
Here all along I thought it was the 10 speed, racing tire that produced a hydraulic action forcing air into a peanut butter jar with a quick release valve for pressure sensitivity.
OccupantRJ
Well-known member
You know, I DID pass a stream with a water wheel this weekend.....
mike93lx
ALLIANCE MEMBER
Miss the Pontiacs
Well-known member
Occupant I think you have the answer. Start a Hydrogen bottling facility and use the by product Oxygen to fire the nations compressors. Ingenious
Falcon67
Well-known member
I looked at one of those "200 HP" chinese motors. It's a really more of a metric 200HP.
Figure the running draw and it comes out to more like 3.14159 english HP. The startup draw is about 200 HP because of the sand they pack in the bearings during manufacturing. So once you get it going, tape over the breaker because you don't want to turn it off. Take a pic of the breaker and save on your phone so per code, the shut off is always within sight.
Figure the running draw and it comes out to more like 3.14159 english HP. The startup draw is about 200 HP because of the sand they pack in the bearings during manufacturing. So once you get it going, tape over the breaker because you don't want to turn it off. Take a pic of the breaker and save on your phone so per code, the shut off is always within sight.
WaveBlaster1200
Active member
I got this 400hp DC motor from the scap bin at work. How many 9v batteries will I need to run this? I want to use it in my swamp cooler. 
Sent from my SM-G892A using The Garage Journal mobile app
Sent from my SM-G892A using The Garage Journal mobile app
mrobins297aaa
Well-known member
well as long as were going off topic.........this was 1983, Michigan Bell bldg. downtown Detroit, this fan had a 200hp motor on it and it was such a pia to get it installed where it had to go, we were all joking that we hope that we never had to change that motor.
It ran 15 minutes and burned up.....really
It ran 15 minutes and burned up.....really
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PugetDude
ALLIANCE MEMBER
I got this 400hp DC motor from the scap bin at work. How many 9v batteries will I need to run this? I want to use it in my swamp cooler.
Sent from my SM-G892A using The Garage Journal mobile app
Excellent idea running it on 9V, since it is going to be used around water.
BTW, You might be able to scavenge a bunch of 9V batteries out of old smoke detectors.
laser3kw
Well-known member
120v or 240v?
prolly didn't have enough extension cords running to it
Falcon67
Well-known member
I could see a bank of Eveready's running that giganto. They'd never handle the start up though. I would suggest maybe hooking a big start cap in series with a regular phone POTS line, then you could call that number and the 90v ringing voltage would kick the motor off easy.
mrobins297aaa
Well-known member
na it was battery operated,.......I think 12v super ni cad......lol
wyliesdiesels
Well-known member
I think hes hiding in the corner with his tail between his legs.
Either that or hes sitting in the dark because the poco cut his service drop after he tried to start his 200HP motor on a 100a service.
I think you can reverse the rotation if you fold the cords in half.
PugetDude
ALLIANCE MEMBER
Only if you fold them counterclockwise; clockwise doubles the speed.
Miss the Pontiacs
Well-known member
You can always wrap a section of the extension cord with tin foil. Then by sliding the tin foil up or down the extension cord you find the sweet spot of how much current you actually need.
laser3kw
Well-known member
You can always wrap a section of the extension cord with tin foil. Then by sliding the tin foil up or down the extension cord you find the sweet spot of how much current you actually need.
Jeez! you guys made morning coffee part of my keyboard!
OccupantRJ
Well-known member
Is this motor a 3 face like some I see for sale on CL?
PugetDude
ALLIANCE MEMBER
No, it's a 2-faced motor. You can't trust what it says on the nameplate.
Capt Chrysler
Well-known member
Heck, just build a small nuke power plant.
Google "Radioactive Boy Scout" or the "Nuclear Boy Scout"
Google "Radioactive Boy Scout" or the "Nuclear Boy Scout"
I think hes hiding in the corner with his tail between his legs.
Either that or hes sitting in the dark because the poco cut his service drop after he tried to start his 200HP motor on a 100a service.
I heard he was in Florida helping somebody pull stumps.
PugetDude
ALLIANCE MEMBER
Or, just buy your own coal-fired power plant!
https://www.garagejournal.com/forum/showthread.php?t=421570
Been reading this thread and enjoying it, but after looking I still haven't found the previous thread mentioned. Did it get deleted?lol all joking aside
If i hadnt seen the previous ridiculous thread pertaining to this subject i would think this was either spam or a troll post.
nicely played!!
[emoji38]_hitti
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quite possibly , and perhaps the user was banned too for trolling?
Miss the Pontiacs
Well-known member
You guys don’t change the topic. This isn’t about fishing! The stories you could tell on that thread!
laser3kw
Well-known member
how quickly we forget
Original post: Using weaker phase converter to slow down compressor?
It is still on the first page of posts here. It was responded to yesterday(5-17)
PugetDude
ALLIANCE MEMBER
You guys don’t change the topic. This isn’t about fishing! The stories you could tell on that thread!
It really was all about fishing- a lot of guys got foul-hooked on that thread.
Ah, I saw that thread, didn't realize that was it. I hadn't read it. I did now!
Is he planning on yanking the radioactive stuff out of smoke detectors to build a nuclear power plant to run his motor?
That's what I'd do.
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Milton Shaw
Well-known member
- Joined
- Feb 11, 2011
- Messages
- 4,837
I really need this motor to replace the one on my granddaughters toy sewing machine. She runs through batteries too often and need to convert to plug in. Send me a PM if you are interested in helping me with with granddaughter.. LOL